Re: [MBZ] Cold Start Video

[Andrew Strasfogel via Mercedes]

"cold start" means driving on a cold day for half an hour, turning off the
ignition, and then immediately firing it up.

On Mon, Jan 17, 2022 at 12:49 PM Jaime Kopchinski via Mercedes <
mercedes@okiebenz.com> wrote:

> This is entertaining:
> https://bringatrailer.com/listing/1983-mercedes-benz-300sd-20/
>
> They posted a cold start video where she doesn't wait for the glow plugs,
> and the car parked in the middle of an empty parking lot.  I suspect
> they're just clueless rather than trying to fool someone.
>
>
>
> --
> Jaime Kopchinski
> http://www.jaimekop.com/
> ___
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[MBZ] Cold Start Video

[Jaime Kopchinski via Mercedes]

This is entertaining:
https://bringatrailer.com/listing/1983-mercedes-benz-300sd-20/

They posted a cold start video where she doesn't wait for the glow plugs,
and the car parked in the middle of an empty parking lot.  I suspect
they're just clueless rather than trying to fool someone.



-- 
Jaime Kopchinski
http://www.jaimekop.com/
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[MBZ] Cold start OK

[MG via Mercedes]

Well I'm happy. It is 28 deg outside and the care started just 
fine. Let it glow, waited 4 seconds after the light went off, 
gave it abut half throttle and let er rip. The starter turned a 
bit slower then normal but the engine did only 4 bumps and lit 
off. Nice and even.


Yeah I know it's not like it was really cold but it's about as 
cold as it will get down here in FL. BTW the car (83 300TD has 
just over 290K miles on it now and there wasn't any smoke.


Can't complain,
MG

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Re: [MBZ] Cold start.

[Curt Raymond via Mercedes]

It was -5F here. The Jetta fired on the first compression stroke. I did glow it 
twice though...

Curt

Sent from Yahoo Mail on Android 
 
  On Sat, Dec 17, 2016 at 1:13 PM, Fred Moir via 
Mercedes wrote:   At 2.7 degrees yesterday morning.

Crank-wh-clunk.

Crank-wh.

Crank and start.

B*lls! need new starter drive/starter.


Fred Moir.
Lynn MA.
Diesel preferred.
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Re: [MBZ] Cold start.

[Curley McLain via Mercedes]

Sending you some really cold air now.   You are welcome!   I don't want it!

These are the days that try men's souls.and vocabulary!

Fred Moir via Mercedes 
December 17, 2016 at 12:13 PM
At 2.7 degrees yesterday morning.

Crank-wh-clunk.

Crank-wh.

Crank and start.

B*lls! need new starter drive/starter.


Fred Moir.


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[MBZ] Cold start.

[Fred Moir via Mercedes]

At 2.7 degrees yesterday morning.

Crank-wh-clunk.

Crank-wh.

Crank and start.

B*lls! need new starter drive/starter.


Fred Moir.
Lynn MA.
Diesel preferred.
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Re: [MBZ] cold start valves

[RELNGSON]

 As I said earlier, I replaced a temp sender on my Mum's 190E because 
 it
 too was hard to start, hot or cold. Actually I got it to start better
 disconnecting the cold start valve, which meant that the valve was
 squirting fuel into the motor..
 
Which reminds me, lo these many years ago, I decided to drive my recently 
acquired 116 450SE to San Diego, a 2 1/2 day jaunt. and I wanted to stop at 
the Portofino Inn in Manhattan Beach CA which was the finish point for the 
Cannonball Run a few times. Car  Driver had been raving about the place for a 
few years so we decided to give it a try. It was a dump, speaking 
conservatively.

Back to cold start valves, the car was out in the hotel lot and before 
stowing the baggage in the trunk, I decided to let it run a bit. When we got 
aboard, I smelled something and raised the hood (engine running) and dicovered 
the cold start valve doing it's impression of Old Faithful. The vee of the 
V-8 contained over an inch of gasoline, gushing out of that damned valve. I 
was momentarily frozen in my tracks but decided to head for the local MB 
dealer which I did at great speed, all in 1st gear. Of course, when we arrived, 
in less than five minutes BTW, the engine was warm, the raw gas gone and the 
valve no longer leaking.

I disconnected the unit and replaced it when I got back to Seattle a week 
later. Cost about eighty bucks.

Yes, the thing could have been incinerated but wasn't, no thanks to me.

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[MBZ] cold start rpms

[M.Affzaal.Khan]

The 124  W201 does not  have a high RPM idle when started frm cold .  The 
cold start injector comes on for a second or so when started .
It  seems the Idle control valve  is working  and recleaned too,
 Input most appriciated
Thanks
mak 


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Re: [MBZ] cold start rpms

[Peter Frederick]

2k doesn't seem right for that sensor, usually they are much higher, 
but I don't have that information handy at the moment.  I'll try to 
look it up in a bit (I'm looking for the receipt for my cashier's check 
for the new Benz).  The one for the ACC is a two pole after 7/87, 
single pole before that.

Peter


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Re: [MBZ] cold start rpms

[M.Affzaal.Khan]

Thanks Peter  . At a little loss about  the temp.switch . single or double 
pin?
There is the engine coolant sensor I checked which showed about  2K reading 
with a cold engine. the RMP's go up briefly when I pull and reconnect it 
back

Regards
mak
- Original Message - 
From: Peter Frederick [EMAIL PROTECTED]
To: Mercedes Discussion List mercedes@okiebenz.com
Sent: Thursday, November 08, 2007 5:06 AM
Subject: Re: [MBZ] cold start rpms


 Check the temperature switch -- I don't remember if it's open cold or
 closed cold, (probably closed) -- if not working, you may not get
 enough cold enrichment or the high idle.

 Double check the idle control valve and for vacuum leaks, too -- if you
 have enough leaks, the idle control valve won't do much.

 Peter


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Re: [MBZ] cold start rpms

[Peter Frederick]

Check the temperature switch -- I don't remember if it's open cold or 
closed cold, (probably closed) -- if not working, you may not get 
enough cold enrichment or the high idle.

Double check the idle control valve and for vacuum leaks, too -- if you 
have enough leaks, the idle control valve won't do much.

Peter


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Re: [MBZ] Cold start wear

[RELNGSON]

 I always do that with my freight trains! Doesn't seem applicable to my
 cars. Almost all automobile engine wear is cold start wear..
 
I have a Porsche 911 factory shop manual from 1968 that states that startup 
wear is equivalent to 200 miles at full throttle. Keeping in mind that all 
their engines were air-cooled in those days and top speeds were in the range of 
130-140mph.

So here they are endorsing Mobil1 0W40 more than thirty years before it was 
introduced.

RLE
 
 

Re: [MBZ] Cold start wear

[Tom Hargrave]

And Mobile 1 won't help a bit if the issue is gasoline wash down. The issue
is not lack of oil pressure at start up. The issue is oil that's coating the
cylinder walls being diluted with fuel condensate because the cylinder walls
are cold at start up. No-one's oil (synthetic or otherwise) protects against
this.

Thanks,
Tom Hargrave
www.kegkits.com
256-656-1924
 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of [EMAIL PROTECTED]
Sent: Friday, February 02, 2007 2:55 PM
To: mercedes@okiebenz.com
Subject: Re: [MBZ] Cold start wear

 I always do that with my freight trains! Doesn't seem applicable to my
 cars. Almost all automobile engine wear is cold start wear..
 
I have a Porsche 911 factory shop manual from 1968 that states that startup 
wear is equivalent to 200 miles at full throttle. Keeping in mind that all 
their engines were air-cooled in those days and top speeds were in the range
of 
130-140mph.

So here they are endorsing Mobil1 0W40 more than thirty years before it was 
introduced.

RLE
 
 

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Re: [MBZ] Cold start wear

[Marshall Booth]

Tom Hargrave wrote:

And Mobile 1 won't help a bit if the issue is gasoline wash down. The issue
is not lack of oil pressure at start up. The issue is oil that's coating the
cylinder walls being diluted with fuel condensate because the cylinder walls
are cold at start up. No-one's oil (synthetic or otherwise) protects against
this.


That's seldom a problem in a well engineered and maintained engine. The 
cylinder walls of MOST well cared for Mercedes engines aren't seriously 
worn even after a quarter or even a half a million miles although using 
a synthetic might improve that slightly. Synthetics really do reduce 
most cold accelerated bearing wear (and other friction caused wear).


Marshall
--
Marshall Booth Ph.D.
Ass't Prof. (ret.)
Univ of Pittsburgh School of Medicine
[EMAIL PROTECTED]

[MBZ] Cold start

[Curt Raymond]

Since everybody else is posting about their recent cold starts...
It got to 13F here last night, was about 19F when I went out this morning. Let 
the glow light cycle and then maybe 20 seconds more, 2 pumps on the throttle 
and hold at halfway, hit the key and it fired up like it was 50F out, no 
worries whatsoever.

I'm pleased, this would seem to carry my theory that the iron levels shown in 
that car's oil analysis isn't really anything to worry about as long as each 
change continues to see levels fall.

-Curt
'85 190D Dory 254kmi

 
-
Want to start your own business? Learn how on Yahoo! Small Business.
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Has anyone replaced the dash lights on a 1997 Explorer.  The lights in
the cluster (behind the speedo and other gauges) are out on my Wife's
car.  Just wondering if anyone has any idea how to change them?=20

=20

Donald H. Snook

1990 300SEL 133K   =20

1997 Ford Explorer=20

Re: [MBZ] Cold start

[Marshall Booth]

Curt Raymond wrote:

Since everybody else is posting about their recent cold starts...
It got to 13F here last night, was about 19F when I went out this morning. Let 
the glow light cycle and then maybe 20 seconds more, 2 pumps on the throttle 
and hold at halfway, hit the key and it fired up like it was 50F out, no 
worries whatsoever.

I'm pleased, this would seem to carry my theory that the iron levels shown in 
that car's oil analysis isn't really anything to worry about as long as each 
change continues to see levels fall.

-Curt
'85 190D Dory 254kmi


What does timing chain stretch look like? Timing chain wear is a common 
source of iron in the oil.


Marshall
--
Marshall Booth Ph.D.
Ass't Prof. (ret.)
Univ of Pittsburgh School of Medicine
[EMAIL PROTECTED]

Re: [MBZ] Cold start

[Mike Canfield]

Just a theory here but...If your source of iron IS timing chain wear 
could it make any sense at all that the longer you run it the less it wears 
until the point of failure?  I don't know how to explain what I am 
thinking..Kind of like there is less tension on the chain as it wears 
more so it would wear less until it breaksDoes what I am saying make 
any sense at all or am I just dreaming again?


Mike
- Original Message - 
From: Marshall Booth [EMAIL PROTECTED]

To: Mercedes Discussion List mercedes@okiebenz.com
Sent: Wednesday, December 06, 2006 9:08 AM
Subject: Re: [MBZ] Cold start



Curt Raymond wrote:

Since everybody else is posting about their recent cold starts...
It got to 13F here last night, was about 19F when I went out this 
morning. Let the glow light cycle and then maybe 20 seconds more, 2 pumps 
on the throttle and hold at halfway, hit the key and it fired up like it 
was 50F out, no worries whatsoever.


I'm pleased, this would seem to carry my theory that the iron levels 
shown in that car's oil analysis isn't really anything to worry about as 
long as each change continues to see levels fall.


-Curt
'85 190D Dory 254kmi


What does timing chain stretch look like? Timing chain wear is a common
source of iron in the oil.

Marshall
--
Marshall Booth Ph.D.
Ass't Prof. (ret.)
Univ of Pittsburgh School of Medicine
[EMAIL PROTECTED]

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Re: [MBZ] Cold start

[Jim Cathey]

Just a theory here but...If your source of iron IS timing chain 
wear
could it make any sense at all that the longer you run it the less it 
wears

until the point of failure?


No.  The tension doesn't go down 'cause there is a tensioner in there.

Wear _accelerates_, because the rollers no longer match the gear
tooth spacing, and the hogged out holes in the rollers have more
point pressure on the pins they spin on.

-- Jim

Re: [MBZ] Cold start

[Mike Canfield]

Thanks JimJust a thought.

Mike
- Original Message - 
From: Jim Cathey [EMAIL PROTECTED]

To: Mercedes Discussion List mercedes@okiebenz.com
Sent: Wednesday, December 06, 2006 11:15 AM
Subject: Re: [MBZ] Cold start


Just a theory here but...If your source of iron IS timing chain 
wear
could it make any sense at all that the longer you run it the less it 
wears

until the point of failure?


No.  The tension doesn't go down 'cause there is a tensioner in there.

Wear _accelerates_, because the rollers no longer match the gear
tooth spacing, and the hogged out holes in the rollers have more
point pressure on the pins they spin on.

-- Jim


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