Re: Stus-List Timing Belt

[Rick Brass via CnC-List]

The Pathfinder (VW) diesel is a single overhead cam design, so it needs a
belt or chain to drive the camshaft off the crankshaft.

 

Most diesels use pushrods and the camshaft is in the block, not in the
cylinder head.

 

Rick Brass

Washington, NC

 

 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Neil
Andersen via CnC-List
Sent: Friday, July 31, 2020 1:11 PM
To: cnc-list@cnc-list.com
Cc: Neil Andersen 
Subject: Re: Stus-List Timing Belt

 

What are you timing?   A diesel doesn't have spark plugs and the valves are
on a cam shaft.

 

Neil Andersen

1982 C&C 32

Rock Hall, MD 21661

  _  


Subject: Re: Stus-List Timing Belt 

 

To my knowledge all yanmar engines are gear driven. 

 

Josh Muckley 

S/V Sea Hawk 

1989 C&C 37+

Solomons, MD 

 

On Fri, Jul 31, 2020, 11:48 Dennis C. via CnC-List mailto:cnc-list@cnc-list.com> > wrote:

Kubota based marine engines are also gear driven.  

 

On Fri, Jul 31, 2020 at 10:44 AM Sam Salter via CnC-List
mailto:cnc-list@cnc-list.com> > wrote:

Rob, 

The 2GMF timing is gear driven. There is no timing belt to change.

 

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Re: Stus-List Timing Belt

[Rick Brass via CnC-List]

I agree with you, Doug.

 

My first reaction to the original question was that all diesel engines, by the 
very nature of the high compression needed for ignition of a diesel, are 
interference engines. I couldn’t recall any diesels in my experience that used 
a timing belt instead of a chain or gear train. But I forgot about the 
Pathfinder Diesel, which is essentially a marineized version of a VW Rabbit 
engine.

 

Rick Brass

Washington, NC

 

 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Doug 
Mountjoy via CnC-List
Sent: Friday, July 31, 2020 10:58 AM
To: cnc-list@cnc-list.com
Cc: Doug Mountjoy 
Subject: Re: Stus-List Timing Belt

 

The only marine diesel engine using a timing belt that i know of is the VW 
based engine. With the compression ratios of diesels I would imagine they are 
all interference fit engines. Meaning that the valves open into the space of 
where the piston will be at a different point the the cycle. 

 

 

 

Doug Mountjoy

sv Rebecca Leah 

C&C Landfall 39

Port Orchard yacht club

 

 Original message 

From: Robert Abbott via CnC-List mailto:cnc-list@cnc-list.com> > 

Date: 7/31/20 07:33 (GMT-08:00) 

To: cnc-list@cnc-list.com   

Cc: Robert Abbott mailto:robertabb...@eastlink.ca> > 

Subject: Stus-List Timing Belt 

 

Has anyone ever experienced an issue with a broken timing belt in our 
marine diesel engines?

A club member had his break recently and it destroyed his engine which 
he choose to replace rather than repairand not sure if it actually 
could be replaced.   I'll get more info on the exact type of engine and 
the extent of the damage.  He said some marine diesel engine 'timing 
belts' can break but not cause the kind of damage his did.

Rob Abbott
AZURA
C&C 32 - #277
Halifax, N.S.


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Re: Stus-List Engine starting issue

[Rick Brass via CnC-List]

On my Universal M35B (which is a later version Kubota engine, but similar to 
yours) the preheat button powers up both the glow plugs and the electric fuel 
lift pump, which supplies fuel to the high pressure injection pump.

 

When you press the start without preheat, does it crank without starting? Or 
not crank at all? 

 

1st alternative might indicate a failing lift pump and insufficient fuel supply 
to the injection pump. Second is probably corrosion in the starter wiring 
somewhere. 

 

Can you here the start solenoid click in if alternative 2? If so, that would 
make me suspect the power cable to the starter or the engine ground rather than 
the wiring from the engine panel.

 

Rick Brass

Washington, NC

 

 

 

 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of David Knecht 
via CnC-List
Sent: Friday, July 31, 2020 12:44 PM
To: CnC CnC discussion list 
Cc: David Knecht 
Subject: Re: Stus-List Engine starting issue

 

This is a Universal M4-30.  When I bought the boat, I had starting issues and 
cleaned all the grounds and have since replaced the wiring harnesses.  It has 
been 8 years, but the reason I was skeptical of a ground issue is that the 
engine has started every time on the first try when first warming the glow 
plugs.  And it has started on the second try both times when not using the glow 
plugs.  Does it make sense that a bad ground would work that way?  Dave

 

S/V Aries

1990 C&C 34+

New London, CT








On Jul 31, 2020, at 11:35 AM, Dennis C. via CnC-List mailto:cnc-list@cnc-list.com> > wrote:

 

Yanmar?  Don't forget to service the wiring harness connection near the engine, 
coat contacts with TefGel and then plug and unplug it several times.  
Generously wrap electrical tape around it when finished.

  -- 

Dennis C.

Touche' 35-1 #83

Mandeville, LA

 

On Fri, Jul 31, 2020 at 9:44 AM David Knecht via CnC-List 
mailto:cnc-list@cnc-list.com> > wrote:

Twice in the last week, I have noticed an issue that might be a prelude to a 
greater problem. Normally, I start the engine by turning on the key, hitting 
the glow plug button for 30 seconds and then hitting the start button.   Never 
been a problem there.  Both times that this has happened, the engine was 
already warm and I just turned the key on, hit the start button and got no 
response.  Tried again a few seconds later and it started up fine both times.  
Is it possible that something needs a few seconds to power up after turning the 
key on (solenoid?)?  I don’t remember this being an issue in the past, but it 
is not often I start the engine by just turning the key and pushing start.  My 
start battery is a 10 year old AGM and has had no trouble cranking the engine 
in general, even after warming the glow plugs for 45 seconds. Thanks- Dave

 

David Knecht

S/V Aries

1990 C&C 34+

 




 

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Re: Stus-List Timing Belt

[Josh Muckley via CnC-List]

The timing on a Yanmar is based on the injection of fuel.  You can adjust
the timing by changing the shims under the injector pump.  Thinner shims
mean more plunger depth earlier in the rotation, thus earlier injection -
timing advance.  This is ignition timing similar to rotating the
distributor cap.

Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD

On Fri, Jul 31, 2020, 13:12 Neil Andersen via CnC-List <
cnc-list@cnc-list.com> wrote:

> What are you timing?   A diesel doesn’t have spark plugs and the valves
> are on a cam shaft.
>
> Neil Andersen
> 1982 C&C 32
> Rock Hall, MD 21661
> --
>
> *Subject:* Re: Stus-List Timing Belt
>
> To my knowledge all yanmar engines are gear driven.
>
> Josh Muckley
> S/V Sea Hawk
> 1989 C&C 37+
> Solomons, MD
>
> On Fri, Jul 31, 2020, 11:48 Dennis C. via CnC-List 
> wrote:
>
>> Kubota based marine engines are also gear driven.
>>
>> On Fri, Jul 31, 2020 at 10:44 AM Sam Salter via CnC-List <
>> cnc-list@cnc-list.com> wrote:
>>
>>> Rob,
>>> The 2GMF timing is gear driven. There is no timing belt to change.
>>>
>>
>> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List Engine starting issue

[Gary Nylander via CnC-List]

Amen. After some engine work, I was able to start it a number times, then 
nothing. I spent many hours chasing the wires. Everything connected, yes. 12 v 
where needed, yes. Finally realized that even though I had connectivity, there 
was just not enough current. Ran a separate wire from the terminal on the 
starter (direct cable from battery) to the ignition switch. Aha! Running again. 
40 year old wire and connections….

 

Gary

30-1

St. Michaels MD

From: CnC-List  On Behalf Of Dennis C. via 
CnC-List
Sent: Friday, July 31, 2020 11:36 AM
To: CnClist 
Cc: Dennis C. 
Subject: Re: Stus-List Engine starting issue

 

Yanmar?  Don't forget to service the wiring harness connection near the engine, 
coat contacts with TefGel and then plug and unplug it several times.  
Generously wrap electrical tape around it when finished.

  -- 

Dennis C.

Touche' 35-1 #83

Mandeville, LA

 

On Fri, Jul 31, 2020 at 9:44 AM David Knecht via CnC-List 
mailto:cnc-list@cnc-list.com> > wrote:

Twice in the last week, I have noticed an issue that might be a prelude to a 
greater problem. Normally, I start the engine by turning on the key, hitting 
the glow plug button for 30 seconds and then hitting the start button.   Never 
been a problem there.  Both times that this has happened, the engine was 
already warm and I just turned the key on, hit the start button and got no 
response.  Tried again a few seconds later and it started up fine both times.  
Is it possible that something needs a few seconds to power up after turning the 
key on (solenoid?)?  I don’t remember this being an issue in the past, but it 
is not often I start the engine by just turning the key and pushing start.  My 
start battery is a 10 year old AGM and has had no trouble cranking the engine 
in general, even after warming the glow plugs for 45 seconds. Thanks- Dave

 

David Knecht

S/V Aries

1990 C&C 34+

 




 

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Re: Stus-List Timing Belt

[Doug Mountjoy via CnC-List]

You are timing the opening of the VALVES to the crankshaft, and the injector 
pump to the crankshaft. All this has to happen a certain order for the engine 
to function properly. If one is out of sequence the engine will either run 
poorly or not at all. Doug Mountjoysv Rebecca Leah C&C Landfall 39Port Orchard 
yacht club
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Re: Stus-List Timing Belt

[Paul Wyand via CnC-List]

Valve timing, on a diesel it is not really timing as it is not triggering a
distributor, but it still moves the valve train on an overhead cam engine.
The Pathfinder was a marinized VW single overhead cam diesel that was
converted from the car engines. The car engine was a converted gas design.
Or it could be a SeaPower marine engine but those are the VW TDI engines
and I have not seen one of those in a sailboat as they start off well over
100 hp. (Mine in my car is 150 hp at 3500 HP)

On Fri, Jul 31, 2020 at 1:12 PM Neil Andersen via CnC-List <
cnc-list@cnc-list.com> wrote:

> What are you timing?   A diesel doesn’t have spark plugs and the valves
> are on a cam shaft.
>
> Neil Andersen
> 1982 C&C 32
> Rock Hall, MD 21661
> --
>
> *Subject:* Re: Stus-List Timing Belt
>
> To my knowledge all yanmar engines are gear driven.
>
> Josh Muckley
> S/V Sea Hawk
> 1989 C&C 37+
> Solomons, MD
>
> On Fri, Jul 31, 2020, 11:48 Dennis C. via CnC-List 
> wrote:
>
>> Kubota based marine engines are also gear driven.
>>
>> On Fri, Jul 31, 2020 at 10:44 AM Sam Salter via CnC-List <
>> cnc-list@cnc-list.com> wrote:
>>
>>> Rob,
>>> The 2GMF timing is gear driven. There is no timing belt to change.
>>>
>>
>> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List Timing Belt

[Sam Salter via CnC-List]

... and the cam shaft is gear driven off of the crankshaft. (Not timing belt or 
chain driven)

sam

On Jul 31, 2020, at 11:12 AM, Neil Andersen via CnC-List 
 wrote:


What are you timing?   A diesel doesn’t have spark plugs and the valves are on 
a cam shaft.

Neil Andersen
1982 C&C 32
Rock Hall, MD 21661

Subject: Re: Stus-List Timing Belt
 
To my knowledge all yanmar engines are gear driven.

Josh Muckley 
S/V Sea Hawk 
1989 C&C 37+
Solomons, MD 

> On Fri, Jul 31, 2020, 11:48 Dennis C. via CnC-List  
> wrote:
> Kubota based marine engines are also gear driven.  
> 
>> On Fri, Jul 31, 2020 at 10:44 AM Sam Salter via CnC-List 
>>  wrote:
>> Rob,
>> The 2GMF timing is gear driven. There is no timing belt to change.
> 
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Re: Stus-List Engine starting issue

[Dennis C. via CnC-List]

A key and two buttons?  One for glow plugs and silence the low pressure
alarm and one for starting?  If so, start with jumping the start button.
Turn the key on, press the pre-heat button and jump across the contacts on
the back of the push button switch.  If it turns over strongly, your start
button is dirty.

Sometimes a start switch will get "carboned up" which can result in poor
contact.

  --
Dennis C.
Touche' 35-1 #83
Mandeville, LA

On Fri, Jul 31, 2020 at 11:44 AM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> This is a Universal M4-30.  When I bought the boat, I had starting issues
> and cleaned all the grounds and have since replaced the wiring harnesses.
> It has been 8 years, but the reason I was skeptical of a ground issue is
> that the engine has started every time on the first try when first warming
> the glow plugs.  And it has started on the second try both times when not
> using the glow plugs.  Does it make sense that a bad ground would work that
> way?  Dave
>
> S/V Aries
> 1990 C&C 34+
>
>
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Re: Stus-List Timing Belt

[Neil Andersen via CnC-List]

What are you timing?   A diesel doesn’t have spark plugs and the valves are on 
a cam shaft.

Neil Andersen
1982 C&C 32
Rock Hall, MD 21661


Subject: Re: Stus-List Timing Belt

To my knowledge all yanmar engines are gear driven.

Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD

On Fri, Jul 31, 2020, 11:48 Dennis C. via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Kubota based marine engines are also gear driven.

On Fri, Jul 31, 2020 at 10:44 AM Sam Salter via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Rob,
The 2GMF timing is gear driven. There is no timing belt to change.

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Re: Stus-List Engine starting issue

[David Knecht via CnC-List]

This is a Universal M4-30.  When I bought the boat, I had starting issues and 
cleaned all the grounds and have since replaced the wiring harnesses.  It has 
been 8 years, but the reason I was skeptical of a ground issue is that the 
engine has started every time on the first try when first warming the glow 
plugs.  And it has started on the second try both times when not using the glow 
plugs.  Does it make sense that a bad ground would work that way?  Dave

S/V Aries
1990 C&C 34+
New London, CT



> On Jul 31, 2020, at 11:35 AM, Dennis C. via CnC-List  
> wrote:
> 
> Yanmar?  Don't forget to service the wiring harness connection near the 
> engine, coat contacts with TefGel and then plug and unplug it several times.  
> Generously wrap electrical tape around it when finished.
>   -- 
> Dennis C.
> Touche' 35-1 #83
> Mandeville, LA
> 
> On Fri, Jul 31, 2020 at 9:44 AM David Knecht via CnC-List 
> mailto:cnc-list@cnc-list.com>> wrote:
> Twice in the last week, I have noticed an issue that might be a prelude to a 
> greater problem. Normally, I start the engine by turning on the key, hitting 
> the glow plug button for 30 seconds and then hitting the start button.   
> Never been a problem there.  Both times that this has happened, the engine 
> was already warm and I just turned the key on, hit the start button and got 
> no response.  Tried again a few seconds later and it started up fine both 
> times.  Is it possible that something needs a few seconds to power up after 
> turning the key on (solenoid?)?  I don’t remember this being an issue in the 
> past, but it is not often I start the engine by just turning the key and 
> pushing start.  My start battery is a 10 year old AGM and has had no trouble 
> cranking the engine in general, even after warming the glow plugs for 45 
> seconds. Thanks- Dave
> 
> David Knecht
> S/V Aries
> 1990 C&C 34+
> 
> 
> 
> ___
> 
> Thanks everyone for supporting this list with your contributions.  Each and 
> every one is greatly appreciated.  If you want to support the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray
> 

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Re: Stus-List Timing Belt

[Josh Muckley via CnC-List]

To my knowledge all yanmar engines are gear driven.

Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD

On Fri, Jul 31, 2020, 11:48 Dennis C. via CnC-List 
wrote:

> Kubota based marine engines are also gear driven.
>
> On Fri, Jul 31, 2020 at 10:44 AM Sam Salter via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>> Rob,
>> The 2GMF timing is gear driven. There is no timing belt to change.
>>
>> --
> Dennis C.
> Touche' 35-1 #83
> Mandeville, LA
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List Timing Belt

[Dennis C. via CnC-List]

Kubota based marine engines are also gear driven.

On Fri, Jul 31, 2020 at 10:44 AM Sam Salter via CnC-List <
cnc-list@cnc-list.com> wrote:

> Rob,
> The 2GMF timing is gear driven. There is no timing belt to change.
>
> --
Dennis C.
Touche' 35-1 #83
Mandeville, LA
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Re: Stus-List Timing Belt

[Sam Salter via CnC-List]

Rob,
The 2GMF timing is gear driven. There is no timing belt to change.

Sam
C&C 26  Liquorice 
Ghost Lake Alberta 


On Jul 31, 2020, at 9:07 AM, Robert Abbott via CnC-List  
wrote:

 Jeffery, 

Thank you for the explanation.  I have a Yanmar 2GMF which I will assume 
then is a non-interference engine.  

Any idea when the timing belt should be changed.e.g. number of engine hours 
or overall age of the belt?

Rob Abbott
AZURA
C&C 32 - #277
Halifax, N.S.



On 7/31/2020 11:57 AM, Jeffrey Brideau via CnC-List wrote:
> Some engines are deemed interference engines wherein the pistons occupy the 
> same space as an open valve. If the timing belt brakes, the pistons become 
> out of sync with the valve train and havoc ensues. With non-interference 
> engines, it’s just a major inconvenience. 
> 
> On Fri, Jul 31, 2020 at 10:34 AM Robert Abbott via CnC-List 
>  wrote:
>> Has anyone ever experienced an issue with a broken timing belt in our 
>> marine diesel engines?
>> 
>> A club member had his break recently and it destroyed his engine which 
>> he choose to replace rather than repairand not sure if it actually 
>> could be replaced.   I'll get more info on the exact type of engine and 
>> the extent of the damage.  He said some marine diesel engine 'timing 
>> belts' can break but not cause the kind of damage his did.
>> 
>> Rob Abbott
>> AZURA
>> C&C 32 - #277
>> Halifax, N.S.
>> 
>> 
>> ___
>> 
>> Thanks everyone for supporting this list with your contributions.  Each and 
>> every one is greatly appreciated.  If you want to support the list - use 
>> PayPal to send contribution --   https://www.paypal.me/stumurray
>> 
> 
> 
> ___
> 
> Thanks everyone for supporting this list with your contributions.  Each and 
> every one is greatly appreciated.  If you want to support the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray
> 

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Re: Stus-List Engine starting issue

[Dennis C. via CnC-List]

Yanmar?  Don't forget to service the wiring harness connection near the
engine, coat contacts with TefGel and then plug and unplug it several
times.  Generously wrap electrical tape around it when finished.
  --
Dennis C.
Touche' 35-1 #83
Mandeville, LA

On Fri, Jul 31, 2020 at 9:44 AM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> Twice in the last week, I have noticed an issue that might be a prelude to
> a greater problem. Normally, I start the engine by turning on the key,
> hitting the glow plug button for 30 seconds and then hitting the start
> button.   Never been a problem there.  Both times that this has happened,
> the engine was already warm and I just turned the key on, hit the start
> button and got no response.  Tried again a few seconds later and it started
> up fine both times.  Is it possible that something needs a few seconds to
> power up after turning the key on (solenoid?)?  I don’t remember this being
> an issue in the past, but it is not often I start the engine by just
> turning the key and pushing start.  My start battery is a 10 year old AGM
> and has had no trouble cranking the engine in general, even after warming
> the glow plugs for 45 seconds. Thanks- Dave
>
> David Knecht
> S/V Aries
> 1990 C&C 34+
>
>
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Re: Stus-List Engine starting issue

[Sam Salter via CnC-List]

It’s more than likely, either a bad ground connection on the engine (possibly 
on one of the bell housing bolts on the back of the engine) or, after 30 or 40 
years the untinned main battery/starter/solenoid wires have corroded up inside 
the insulation near the connectors. Happened to me a few years ago. Took me a 
couple of years (off and on) to diagnose. Eventually replaced the thick main 
cables with stock cables from Canadian Tire - connectors and battery terminals 
already fitted!

sam
C&C 26  Liquorice 
Ghost Lake Alberta 


On Jul 31, 2020, at 8:44 AM, David Knecht via CnC-List  
wrote:


Twice in the last week, I have noticed an issue that might be a prelude to a 
greater problem. Normally, I start the engine by turning on the key, hitting 
the glow plug button for 30 seconds and then hitting the start button.   Never 
been a problem there.  Both times that this has happened, the engine was 
already warm and I just turned the key on, hit the start button and got no 
response.  Tried again a few seconds later and it started up fine both times.  
Is it possible that something needs a few seconds to power up after turning the 
key on (solenoid?)?  I don’t remember this being an issue in the past, but it 
is not often I start the engine by just turning the key and pushing start.  My 
start battery is a 10 year old AGM and has had no trouble cranking the engine 
in general, even after warming the glow plugs for 45 seconds. Thanks- Dave

David Knecht
S/V Aries
1990 C&C 34+
New London, CT





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Re: Stus-List Timing Belt

[Jeffrey Brideau via CnC-List]

I believe most if not all Yanmar (or any diesel) are interference engines.
I think they recommend 1200hrs or 4 years on timing belts. Best to ask the
dealer.

On Fri, Jul 31, 2020 at 11:07 AM Robert Abbott via CnC-List <
cnc-list@cnc-list.com> wrote:

> Jeffery,
>
> Thank you for the explanation.  I have a Yanmar 2GMF which I will
> assume then is a non-interference engine.
>
> Any idea when the timing belt should be changed.e.g. number of engine
> hours or overall age of the belt?
>
> Rob Abbott
> AZURA
> C&C 32 - #277
> Halifax, N.S.
>
>
>
> On 7/31/2020 11:57 AM, Jeffrey Brideau via CnC-List wrote:
>
> Some engines are deemed interference engines wherein the pistons occupy
> the same space as an open valve. If the timing belt brakes, the pistons
> become out of sync with the valve train and havoc ensues. With
> non-interference engines, it’s just a major inconvenience.
>
> On Fri, Jul 31, 2020 at 10:34 AM Robert Abbott via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>> Has anyone ever experienced an issue with a broken timing belt in our
>> marine diesel engines?
>>
>> A club member had his break recently and it destroyed his engine which
>> he choose to replace rather than repairand not sure if it actually
>> could be replaced.   I'll get more info on the exact type of engine and
>> the extent of the damage.  He said some marine diesel engine 'timing
>> belts' can break but not cause the kind of damage his did.
>>
>> Rob Abbott
>> AZURA
>> C&C 32 - #277
>> Halifax, N.S.
>>
>>
>> ___
>>
>> Thanks everyone for supporting this list with your contributions.  Each
>> and every one is greatly appreciated.  If you want to support the list -
>> use PayPal to send contribution --   https://www.paypal.me/stumurray
>>
>>
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each and 
> every one is greatly appreciated.  If you want to support the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
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Stus-List Timing Belt

[Robert Abbott via CnC-List]

Jeffery,

Thank you for the explanation.  I have a Yanmar 2GMF which I will 
assume then is a non-interference engine.


Any idea when the timing belt should be changed.e.g. number of 
engine hours or overall age of the belt?


Rob Abbott
AZURA
C&C 32 - #277
Halifax, N.S.



On 7/31/2020 11:57 AM, Jeffrey Brideau via CnC-List wrote:
Some engines are deemed interference engines wherein the pistons 
occupy the same space as an open valve. If the timing belt brakes, the 
pistons become out of sync with the valve train and havoc ensues. With 
non-interference engines, it’s just a major inconvenience.


On Fri, Jul 31, 2020 at 10:34 AM Robert Abbott via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:


Has anyone ever experienced an issue with a broken timing belt in our
marine diesel engines?

A club member had his break recently and it destroyed his engine
which
he choose to replace rather than repairand not sure if it
actually
could be replaced.   I'll get more info on the exact type of
engine and
the extent of the damage.  He said some marine diesel engine 'timing
belts' can break but not cause the kind of damage his did.

Rob Abbott
AZURA
C&C 32 - #277
Halifax, N.S.


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https://www.paypal.me/stumurray


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Re: Stus-List Timing Belt

[Jeffrey Brideau via CnC-List]

Some engines are deemed interference engines wherein the pistons occupy the
same space as an open valve. If the timing belt brakes, the pistons become
out of sync with the valve train and havoc ensues. With non-interference
engines, it’s just a major inconvenience.

On Fri, Jul 31, 2020 at 10:34 AM Robert Abbott via CnC-List <
cnc-list@cnc-list.com> wrote:

> Has anyone ever experienced an issue with a broken timing belt in our
> marine diesel engines?
>
> A club member had his break recently and it destroyed his engine which
> he choose to replace rather than repairand not sure if it actually
> could be replaced.   I'll get more info on the exact type of engine and
> the extent of the damage.  He said some marine diesel engine 'timing
> belts' can break but not cause the kind of damage his did.
>
> Rob Abbott
> AZURA
> C&C 32 - #277
> Halifax, N.S.
>
>
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List Timing Belt

[Doug Mountjoy via CnC-List]

The only marine diesel engine using a timing belt that i know of is the VW 
based engine. With the compression ratios of diesels I would imagine they are 
all interference fit engines. Meaning that the valves open into the space of 
where the piston will be at a different point the the cycle. Doug Mountjoysv 
Rebecca Leah C&C Landfall 39Port Orchard yacht club
 Original message From: Robert Abbott via CnC-List 
 Date: 7/31/20  07:33  (GMT-08:00) To: 
cnc-list@cnc-list.com Cc: Robert Abbott  Subject: 
Stus-List Timing Belt Has anyone ever experienced an issue with a broken timing 
belt in our marine diesel engines?A club member had his break recently and it 
destroyed his engine which he choose to replace rather than repairand not 
sure if it actually could be replaced.   I'll get more info on the exact type 
of engine and the extent of the damage.  He said some marine diesel engine 
'timing belts' can break but not cause the kind of damage his did.Rob 
AbbottAZURAC&C 32 - #277Halifax, 
N.S.___Thanks everyone for 
supporting this list with your contributions.  Each and every one is greatly 
appreciated.  If you want to support the list - use PayPal to send contribution 
--   https://www.paypal.me/stumurray___

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Re: Stus-List Engine starting issue

[David Risch via CnC-List]

Especially the grounds…

David F. Risch
Managing Director
Great Benefits USA
401-419-4650 - Direct Line
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www.greatbenefitsusa.com

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From: CnC-List  On Behalf Of Doug Mountjoy via 
CnC-List
Sent: Friday, July 31, 2020 10:53 AM
To: cnc-list@cnc-list.com; CnC CnC discussion list 
Cc: Doug Mountjoy 
Subject: Re: Stus-List Engine starting issue

Sounds to me you might have some corrosion in the starter circuit. Check all 
the battery, ignition, and starter wires for tight and clean connections.
Do you hear a click when you try starting without glow plugs?



Doug Mountjoy
sv Rebecca Leah
C&C Landfall 39
Port Orchard yacht club

 Original message 
From: David Knecht via CnC-List 
mailto:cnc-list@cnc-list.com>>
Date: 7/31/20 07:38 (GMT-08:00)
To: CnC CnC discussion list 
mailto:CnC-List@cnc-list.com>>
Cc: David Knecht mailto:davidakne...@gmail.com>>
Subject: Stus-List Engine starting issue

Twice in the last week, I have noticed an issue that might be a prelude to a 
greater problem. Normally, I start the engine by turning on the key, hitting 
the glow plug button for 30 seconds and then hitting the start button.   Never 
been a problem there.  Both times that this has happened, the engine was 
already warm and I just turned the key on, hit the start button and got no 
response.  Tried again a few seconds later and it started up fine both times.  
Is it possible that something needs a few seconds to power up after turning the 
key on (solenoid?)?  I don’t remember this being an issue in the past, but it 
is not often I start the engine by just turning the key and pushing start.  My 
start battery is a 10 year old AGM and has had no trouble cranking the engine 
in general, even after warming the glow plugs for 45 seconds. Thanks- Dave

David Knecht
S/V Aries
1990 C&C 34+
New London, CT

[X]


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Re: Stus-List Engine starting issue

[Doug Mountjoy via CnC-List]

Sounds to me you might have some corrosion in the starter circuit. Check all 
the battery, ignition, and starter wires for tight and clean connections. Do 
you hear a click when you try starting without glow plugs? Doug Mountjoysv 
Rebecca Leah C&C Landfall 39Port Orchard yacht club
 Original message From: David Knecht via CnC-List 
 Date: 7/31/20  07:38  (GMT-08:00) To: CnC CnC 
discussion list  Cc: David Knecht 
 Subject: Stus-List Engine starting issue 
Twice in the last week, I have noticed an issue that might be a prelude to a 
greater problem. Normally, I start the engine by turning on the key, hitting 
the glow plug button for 30 seconds and then hitting the start button.   Never 
been a problem there.  Both times that this has happened, the engine was 
already warm and I just turned the key on, hit the start button and got no 
response.  Tried again a few seconds later and it started up fine both times.  
Is it possible that something needs a few seconds to power up after turning the 
key on (solenoid?)?  I don’t remember this being an issue in the past, but it 
is not often I start the engine by just turning the key and pushing start.  My 
start battery is a 10 year old AGM and has had no trouble cranking the engine 
in general, even after warming the glow plugs for 45 seconds.     Thanks- Dave
David KnechtS/V Aries1990 C&C 34+New London, CT


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Re: Stus-List Engine starting issue

[Joel Aronson via CnC-List]

Yanmar?  Corrosion in the starting circuit.  Clean the connections at the
starter and work your way back to the switch.

Joel

On Fri, Jul 31, 2020 at 10:44 AM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:

> Twice in the last week, I have noticed an issue that might be a prelude to
> a greater problem. Normally, I start the engine by turning on the key,
> hitting the glow plug button for 30 seconds and then hitting the start
> button.   Never been a problem there.  Both times that this has happened,
> the engine was already warm and I just turned the key on, hit the start
> button and got no response.  Tried again a few seconds later and it started
> up fine both times.  Is it possible that something needs a few seconds to
> power up after turning the key on (solenoid?)?  I don’t remember this being
> an issue in the past, but it is not often I start the engine by just
> turning the key and pushing start.  My start battery is a 10 year old AGM
> and has had no trouble cranking the engine in general, even after warming
> the glow plugs for 45 seconds. Thanks- Dave
>
> David Knecht
> S/V Aries
> 1990 C&C 34+
> New London, CT
>
>
>
>
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>

-- 
Joel
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Stus-List Engine starting issue

[David Knecht via CnC-List]

Twice in the last week, I have noticed an issue that might be a prelude to a 
greater problem. Normally, I start the engine by turning on the key, hitting 
the glow plug button for 30 seconds and then hitting the start button.   Never 
been a problem there.  Both times that this has happened, the engine was 
already warm and I just turned the key on, hit the start button and got no 
response.  Tried again a few seconds later and it started up fine both times.  
Is it possible that something needs a few seconds to power up after turning the 
key on (solenoid?)?  I don’t remember this being an issue in the past, but it 
is not often I start the engine by just turning the key and pushing start.  My 
start battery is a 10 year old AGM and has had no trouble cranking the engine 
in general, even after warming the glow plugs for 45 seconds. Thanks- Dave

David Knecht
S/V Aries
1990 C&C 34+
New London, CT





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Stus-List Timing Belt

[Robert Abbott via CnC-List]

Has anyone ever experienced an issue with a broken timing belt in our 
marine diesel engines?


A club member had his break recently and it destroyed his engine which 
he choose to replace rather than repairand not sure if it actually 
could be replaced.   I'll get more info on the exact type of engine and 
the extent of the damage.  He said some marine diesel engine 'timing 
belts' can break but not cause the kind of damage his did.


Rob Abbott
AZURA
C&C 32 - #277
Halifax, N.S.


___

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