Re: [MBZ] 300SDL ACC - not cold

2006-08-25 Thread OK Don

I'm convinced! Now - where did I leave the soldapult? I have a LOT of
pots and sliders that need lubricating after another good cleaning - I
ordered the 100% deoxit and some spray lube. We'll seewhat I end up
with.
Thanks!

On 8/24/06, John W. Reames III [EMAIL PROTECTED] wrote:

On Wed, 23 Aug 2006, OK Don wrote:




After my experience on the CC amps, I resolder on principle.  I tried just
reflowing, and looked at it with a strong light and saw pinholes in the
joints. I then tried adding solder to a reflow and after 3x on a dozen
samples, I was unable to get consisistently good results, and I did not
want to cook anything, I got annoyed and started using a soldapult and
resoldering. On the PB boxes the only place I would worry about doing that
is the switches themselves since they take daily abuse (using the
electrical joints for mechanical support counts as abuse IMHO)

BTW you might want to check the diodes in there to see if any are putzed.
They should be common IN400x types.

Has anyone considered tracing out the pump wire and putting a fuse (or
perhaps a PTC termistor .. ) on it internally ? (I suggest a PTC since it
is common to use an NTC for soft-start in tube stuff)

-j.


I'm convinced! Now - where did I leave the soldapult? I have a LOT of
pots and sliders that need lubricating after another good cleaning - I
ordered the 100% deoxit and some spray lube. We'll seewhat I end up
with.
Thanks!


--
OK Don, KD5NRO
Norman, OK
The Americans will always do the right thing... after they've
exhausted all the alternatives.
Sir Winston Churchill
'90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager



Re: [MBZ] 300SDL ACC - not cold

2006-08-25 Thread Jim Cathey

I'm convinced! Now - where did I leave the soldapult?


Reheating never did me any good.  I always add a dab of new solder,
and it works very well unless there's a bad oxidation problem.

-- Jim




Re: [MBZ] 300SDL ACC - not cold

2006-08-24 Thread John W. Reames III
On Tue, 22 Aug 2006, OK Don wrote:
 I've already re-soldered this unit once - but the switches act dirty.
 I bought another one to work on, so I'll see if I can get some de-oxit
 (?) into the switches, then re-solder the thing. There sure are a lot
 of connections on those boards!

Use deoxit. You might want to try the non-aerosol which is 100%. make sure 
to work the switch several times after applying it. Follow it with 
cailube.  I dunno how the switches in those units are made, but if you can 
get to the contacts, tarn-x works wonders (more than one stack switch in a 
preamp or scope has been resurrected with tarn-x)...

Oh yeah... completely remove ALL of the old solder and rpelace it with 
new. The old stuff is utter crap. Use 63/37 if you can find it, with that 
stuff it is quite hard (theoretically impossible) to make a cold joint 
(looks good but is bad)

-j.





Re: [MBZ] 300SDL ACC - not cold

2006-08-24 Thread OK Don

Is this the stuff? (never heard of it before)

http://store.caig.com/s.nl/sc.2/category.183/.f
Name change in 2006: From CaiLube MCL to DeoxIT FaderLube, part
numbers remain the same)


I haven't had to do much re-soldering, I never thought of removing the
old solder first - just melt and add a bit more (generic 60/40
multicore from All Electronics - a long time ago).


On 8/23/06, John W. Reames III [EMAIL PROTECTED] wrote:

On Tue, 22 Aug 2006, OK Don wrote:
 I've already re-soldered this unit once - but the switches act dirty.
 I bought another one to work on, so I'll see if I can get some de-oxit
 (?) into the switches, then re-solder the thing. There sure are a lot
 of connections on those boards!

Use deoxit. You might want to try the non-aerosol which is 100%. make sure
to work the switch several times after applying it. Follow it with
cailube.  I dunno how the switches in those units are made, but if you can
get to the contacts, tarn-x works wonders (more than one stack switch in a
preamp or scope has been resurrected with tarn-x)...

Oh yeah... completely remove ALL of the old solder and rpelace it with
new. The old stuff is utter crap. Use 63/37 if you can find it, with that
stuff it is quite hard (theoretically impossible) to make a cold joint
(looks good but is bad)

-j.


Is this the stuff? (never heard of it before)

http://store.caig.com/s.nl/sc.2/category.183/.f
Name change in 2006: From CaiLube MCL to DeoxIT FaderLube, part
numbers remain the same)

I haven't had to do much re-soldering, I never thought of removing the
old solder first - just melt and add a bit more (generic 60/40
multicore from All Electronics - a long time ago).

--
OK Don, KD5NRO
Norman, OK
The Americans will always do the right thing... after they've
exhausted all the alternatives.
Sir Winston Churchill
'90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager



Re: [MBZ] 300SDL ACC - not cold

2006-08-24 Thread Luther Gulseth

Traveling east anytime soon?  We have 2 cans of Deoxit around here.

Luther

On Wed, 23 Aug 2006 20:54:56 -0500, OK Don [EMAIL PROTECTED] wrote:


Is this the stuff? (never heard of it before)

http://store.caig.com/s.nl/sc.2/category.183/.f
Name change in 2006: From CaiLube MCL to DeoxIT FaderLube, part
numbers remain the same)


I haven't had to do much re-soldering, I never thought of removing the
old solder first - just melt and add a bit more (generic 60/40
multicore from All Electronics - a long time ago).


On 8/23/06, John W. Reames III [EMAIL PROTECTED] wrote:

On Tue, 22 Aug 2006, OK Don wrote:
 I've already re-soldered this unit once - but the switches act dirty.
 I bought another one to work on, so I'll see if I can get some de-oxit
 (?) into the switches, then re-solder the thing. There sure are a lot
 of connections on those boards!

Use deoxit. You might want to try the non-aerosol which is 100%. make sure
to work the switch several times after applying it. Follow it with
cailube.  I dunno how the switches in those units are made, but if you can
get to the contacts, tarn-x works wonders (more than one stack switch in a
preamp or scope has been resurrected with tarn-x)...

Oh yeah... completely remove ALL of the old solder and rpelace it with
new. The old stuff is utter crap. Use 63/37 if you can find it, with that
stuff it is quite hard (theoretically impossible) to make a cold joint
(looks good but is bad)

-j.


Is this the stuff? (never heard of it before)

http://store.caig.com/s.nl/sc.2/category.183/.f
Name change in 2006: From CaiLube MCL to DeoxIT FaderLube, part
numbers remain the same)

I haven't had to do much re-soldering, I never thought of removing the
old solder first - just melt and add a bit more (generic 60/40
multicore from All Electronics - a long time ago).





--
Luther   KB5QHU
Alma, Ark
'83 300SD (236 kmi)
'82 300CD (160 kmi)
'82 300D  (74 kmi) needs MAJOR work



Re: [MBZ] 300SDL ACC - not cold

2006-08-24 Thread OK Don

Thanks for the offer - I just ordered it from the source -- easier
(and less Diesel) then hunting for it around town.

On 8/23/06, Luther Gulseth [EMAIL PROTECTED] wrote:

Traveling east anytime soon?  We have 2 cans of Deoxit around here.

Luther


Thanks for the offer - I just ordered it from the source -- easier
(and less Diesel) then hunting for it around town.


--
OK Don, KD5NRO
Norman, OK
Bracket posting fiend --
'90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager



Re: [MBZ] 300SDL ACC - not cold

2006-08-24 Thread John W. Reames III
On Wed, 23 Aug 2006, OK Don wrote:

 http://store.caig.com/s.nl/sc.2/category.183/.f
 Name change in 2006: From CaiLube MCL to DeoxIT FaderLube, part
 numbers remain the same)
Yep that is the stuff. It is really great on pots, btw.

 I haven't had to do much re-soldering, I never thought of removing the
 old solder first - just melt and add a bit more (generic 60/40
 multicore from All Electronics - a long time ago).

After my experience on the CC amps, I resolder on principle.  I tried just 
reflowing, and looked at it with a strong light and saw pinholes in the 
joints. I then tried adding solder to a reflow and after 3x on a dozen 
samples, I was unable to get consisistently good results, and I did not 
want to cook anything, I got annoyed and started using a soldapult and 
resoldering. On the PB boxes the only place I would worry about doing that 
is the switches themselves since they take daily abuse (using the 
electrical joints for mechanical support counts as abuse IMHO) 

BTW you might want to check the diodes in there to see if any are putzed. 
They should be common IN400x types.

Has anyone considered tracing out the pump wire and putting a fuse (or 
perhaps a PTC termistor .. ) on it internally ? (I suggest a PTC since it 
is common to use an NTC for soft-start in tube stuff)

-j.





Re: [MBZ] 300SDL ACC - not cold

2006-08-23 Thread Kaleb C. Striplin

yes

andrew strasfogel wrote:


Will a visual inspection show that the monovalve diaphragm is torn?

On 8/21/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote:


key word, shouldnt

OK Don wrote:



It shouldn't be - it's almost new.

On 8/20/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote:



pressures seem OK to me.  You need to pull the monovalve and check to
see if the diaphram is torn.






--
Kaleb C. Striplin/Claremore, OK
91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 420SEL, 87 300SDL,
85 380SE, 85 300D, 84 190D 2.2, 83 300TD, 81 300TD, 81 240D,
76 240D, 76 300D, 74 240D, 73 280SEL 4.5, 72 250C, 69 250
http://www.striplin.net

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--
Kaleb C. Striplin/Claremore, OK
 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 420SEL, 87 300SDL,
 85 380SE, 85 300D, 84 190D 2.2, 83 300TD, 81 300TD, 81 240D,
 76 240D, 76 300D, 74 240D, 73 280SEL 4.5, 72 250C, 69 250
http://www.striplin.net



Re: [MBZ] 300SDL ACC - not cold

2006-08-23 Thread andrew strasfogel

In that case, I have a good USED monovalve for sale!

On 8/22/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote:


yes

andrew strasfogel wrote:

 Will a visual inspection show that the monovalve diaphragm is torn?

 On 8/21/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote:

key word, shouldnt

OK Don wrote:


It shouldn't be - it's almost new.

On 8/20/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote:


pressures seem OK to me.  You need to pull the monovalve and check to
see if the diaphram is torn.




--
Kaleb C. Striplin/Claremore, OK
91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 420SEL, 87 300SDL,
85 380SE, 85 300D, 84 190D 2.2, 83 300TD, 81 300TD, 81 240D,
76 240D, 76 300D, 74 240D, 73 280SEL 4.5, 72 250C, 69 250
http://www.striplin.net

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 ___
 http://www.okiebenz.com
 For new parts see official list sponsor: http://www.buymbparts.com/
 For used parts email [EMAIL PROTECTED]

 To Unsubscribe or change delivery options go to:
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--
Kaleb C. Striplin/Claremore, OK
91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 420SEL, 87 300SDL,
85 380SE, 85 300D, 84 190D 2.2, 83 300TD, 81 300TD, 81 240D,
76 240D, 76 300D, 74 240D, 73 280SEL 4.5, 72 250C, 69 250
http://www.striplin.net

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Re: [MBZ] 300SDL ACC - not cold

2006-08-22 Thread OK Don

The SDL came home for a little while this evening, so I took it out
for a diagnosis run. The outside air temp dropped considerably - it
was only 88F on the car dash thermometer. With the ACC set on max
cool, the air from the center vetns dropped down to 50F, only a 38F
drop, but a lot better than I had last Friday. I next pushed the EC
button - the air from the center vents rose to 60F and stayed there.
Then I thought to take it off max cool and set it at 20Ctemp - the air
from the center vents rose to 65F. I then pushed the EC button many
times, rather vigorously, and the air temp rose to 81F. I drove it
home, parked it, and measured the temp of the drive at the garage door
- in the shade - and it read 80F.

So my diagnosis is a flaky push button unit - and possibly an
intermittent sticky mono valve.

What do you think?


--
OK Don, KD5NRO
Norman, OK
The Americans will always do the right thing... after they've
exhausted all the alternatives.
Sir Winston Churchill
'90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager



Re: [MBZ] 300SDL ACC - not cold

2006-08-22 Thread Jim Cathey

from the center vents rose to 65F. I then pushed the EC button many
times, rather vigorously, and the air temp rose to 81F. I drove it
home, parked it, and measured the temp of the drive at the garage door
- in the shade - and it read 80F.
So my diagnosis is a flaky push button unit - and possibly an
intermittent sticky mono valve.

What do you think?


I think you may be right.  If messing with a button like
that changed its behavior something in the area ain't right.
Time for a resolder!  (Plug:  I do those, if you're interested.
http://cathey.dogear.com/mamerepairs.html)

If the monovalve opens for any length of time and the AC isn't on,
vent temps shoot to 140 degrees or thereabouts.

But, depending on conditions the cold soak from the AC takes some
time to dissipate, vent temps _should_ rise to ambient when the
compressor is off.  Takes a bit of time though, did you wait long
enough before messing with the buttons?

-- Jim




Re: [MBZ] 300SDL ACC - not cold

2006-08-22 Thread Marshall Booth

OK Don wrote:

I've already re-soldered this unit once - but the switches act dirty.
I bought another one to work on, so I'll see if I can get some de-oxit
(?) into the switches, then re-solder the thing. There sure are a lot
of connections on those boards!

I was measuring the temp almost constantly - so was watching the temp
drop, then stabilize. It would fluctuate a degree or so, but stopped
the general upward trend for a block or more. (I lucky I didn't run
over anyone - measuring while driving!).


DeoxIT has made a BIG difference on my 300TD pushbutton switches (the 
124 pushbutton control is virtually identical to that in a 300SDL).


Might be worth checking the sensors (evaporator, cabin temp, engine 
temp, etc) as when they act up some strange things CAN happen.


Marshall
--
  Marshall Booth (who doesn't respond to unsigned questions)
  der Dieseling Doktor [EMAIL PROTECTED]
'87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84 
190D 2.2 229Kmi (retired)




Re: [MBZ] 300SDL ACC - not cold

2006-08-22 Thread Zeitgeist

Jeepers H Christmas Jim, you've really gone to town on that shingle page!
Great info there.  I'll probably be sending you the cruise amp (and dead
KLIMA donation) from my 124.

(Plug:  I do those, if you're interested.

http://cathey.dogear.com/mamerepairs.html)



Casey
Olympia, WA
Biodiesel: I drive in a persistent vegetative state
'87 300TD intercooler #22 (217k)
'84 300D (216k)
Gashuffer:
'89 Vanagon Wolfsburg Edition (187K)
http://users.zhonka.net/zeitgeist/Misc/IMG_0171.JPG


Re: [MBZ] 300SDL ACC - not cold

2006-08-22 Thread Jim Cathey
Jeepers H Christmas Jim, you've really gone to town on that shingle 
page!


I can do the writing sitting on my butt inside out of the heat.
It's that or go outside and wrench!

-- Jim




Re: [MBZ] 300SDL ACC - not cold

2006-08-21 Thread OK Don

It shouldn't be - it's almost new.

On 8/20/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote:

pressures seem OK to me.  You need to pull the monovalve and check to
see if the diaphram is torn.




--
OK Don, KD5NRO
Norman, OK
The Americans will always do the right thing... after they've
exhausted all the alternatives.
Sir Winston Churchill
'90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager



Re: [MBZ] 300SDL ACC - not cold

2006-08-21 Thread Jim Cathey

checked the pressures. At  95F outside air, the high was 240ish at
idle, going to 280 at 2k rpm or so, and the low was around 50 at idle
and 30ish at 2k rpm. Does any of this give any clues to way it isn't
cooling?


For R134a the high pressure sounds a tad low.  But you need to check
the monovalve for leaking.  The easiest way is to switch to EC and
see if it starts heating.  (The heater _will_ win if it's fighting
the AC.)

-- Jim




Re: [MBZ] 300SDL ACC - not cold

2006-08-21 Thread OK Don

Good idea - I'll try that!


 The easiest way is to switch to EC and
see if it starts heating.  (The heater _will_ win if it's fighting
the AC.)

-- Jim



--
OK Don, KD5NRO
Norman, OK
The Americans will always do the right thing... after they've
exhausted all the alternatives.
Sir Winston Churchill
'90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager



Re: [MBZ] 300SDL ACC - not cold

2006-08-21 Thread Kaleb C. Striplin

key word, shouldnt

OK Don wrote:


It shouldn't be - it's almost new.

On 8/20/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote:


pressures seem OK to me.  You need to pull the monovalve and check to
see if the diaphram is torn.







--
Kaleb C. Striplin/Claremore, OK
 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 420SEL, 87 300SDL,
 85 380SE, 85 300D, 84 190D 2.2, 83 300TD, 81 300TD, 81 240D,
 76 240D, 76 300D, 74 240D, 73 280SEL 4.5, 72 250C, 69 250
http://www.striplin.net



Re: [MBZ] 300SDL ACC - not cold

2006-08-21 Thread andrew strasfogel

Will a visual inspection show that the monovalve diaphragm is torn?

On 8/21/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote:


key word, shouldnt

OK Don wrote:

 It shouldn't be - it's almost new.

 On 8/20/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote:

pressures seem OK to me.  You need to pull the monovalve and check to
see if the diaphram is torn.





--
Kaleb C. Striplin/Claremore, OK
91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 420SEL, 87 300SDL,
85 380SE, 85 300D, 84 190D 2.2, 83 300TD, 81 300TD, 81 240D,
76 240D, 76 300D, 74 240D, 73 280SEL 4.5, 72 250C, 69 250
http://www.striplin.net

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Re: [MBZ] 300SDL ACC - not cold

2006-08-21 Thread Jim Cathey

Will a visual inspection show that the monovalve diaphragm is torn?


Usually.  There can also be problems with the sealing surfaces
inside the monovalve body, so you want to examine everything
carefully.

If the system's not heating above ambient (and make sure you let the
heat soak dissipate before checking the vent temps) then you don't
have a leaking monovalve.

-- Jim




Re: [MBZ] 300SDL ACC - not cold

2006-08-21 Thread andrew strasfogel

I have incredibly hot air blowing at all times despite a new monovalve
insert, regardless of the ACC setting.  The AC occasionally works but only
for a short period of time before reverting to max heat mode.  My theory is
it's the monovalve itself...

1983 300TD


On 8/21/06, Jim Cathey [EMAIL PROTECTED] wrote:


 Will a visual inspection show that the monovalve diaphragm is torn?

Usually.  There can also be problems with the sealing surfaces
inside the monovalve body, so you want to examine everything
carefully.

If the system's not heating above ambient (and make sure you let the
heat soak dissipate before checking the vent temps) then you don't
have a leaking monovalve.

-- Jim


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Re: [MBZ] 300SDL ACC - not cold

2006-08-21 Thread Jim Cathey

I have incredibly hot air blowing at all times despite a new monovalve
insert, regardless of the ACC setting.  The AC occasionally works but 
only
for a short period of time before reverting to max heat mode.  My 
theory is

it's the monovalve itself...


So many things it could be.  First of all see if the monovalve is 
getting
power when heat's supposed to be off.  You may also wire its coil 
directly
to 12V to see if it shuts off water flow then.  Ought to measure its 
coil

resistance to be sure it's not open.

Monovalve bodies fail.  ACC pushbutton units fail.  Fuses fail.  Etc.

In a pinch you can cork off the hose 'til you can get it fixed.

-- Jim




Re: [MBZ] 300SDL ACC - not cold

2006-08-21 Thread andrew strasfogel

What cork?  What hose?  Sounds like dangerous work for an amateur...

On 8/21/06, Jim Cathey [EMAIL PROTECTED] wrote:


 I have incredibly hot air blowing at all times despite a new monovalve
 insert, regardless of the ACC setting.  The AC occasionally works but
 only
 for a short period of time before reverting to max heat mode.  My
 theory is
 it's the monovalve itself...

So many things it could be.  First of all see if the monovalve is
getting
power when heat's supposed to be off.  You may also wire its coil
directly
to 12V to see if it shuts off water flow then.  Ought to measure its
coil
resistance to be sure it's not open.

Monovalve bodies fail.  ACC pushbutton units fail.  Fuses fail.  Etc.

In a pinch you can cork off the hose 'til you can get it fixed.

-- Jim


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Re: [MBZ] 300SDL ACC - not cold

2006-08-21 Thread Jim Cathey

What cork?  What hose?  Sounds like dangerous work for an amateur...


The hose (either) to the monovalve, whatever you can reach easily.
In the Albatross I found a 3/8 socket extension wedged into a coolant
hose to block it off.  Whatever works, in other words.

Some have also used vise grips to (gently!) pinch shut a rubber hose
in the middle.  I can't say I really like the sound of that, especially
if it's going to be for some time.  You'd probably better plan on new
hose there if you did this.

-- Jim




Re: [MBZ] 300SDL ACC - not cold

2006-08-20 Thread archer


Have you felt the hoses going to the monovalve?  The monovalve plunger in my 
'83 300D was corroded and very sticky.  It could have been powered and still 
not operate.  I also seem to remember that a diaphragm in the monovalve can 
go bad.

Gerry

- Original Message - 
From: OK Don [EMAIL PROTECTED]



The air had been getting warmer over the last several months - just
like the outside air. I've been letting our son drive it most of the
summer, but I drove it yesterday (~100F), and it was miserably hot in
the car - the air never cooled below 90Fcoming out of the center
vents.
I have an indicator light wired in that tells me that the mono valve
is powered - therefore is closed.
The car was converted to R134a by the PO.
So, I figured that I have a freon leak - so hooked up the gauges and
checked the pressures. At  95F outside air, the high was 240ish at
idle, going to 280 at 2k rpm or so, and the low was around 50 at idle
and 30ish at 2k rpm. Does any of this give any clues to way it isn't
cooling?
Clogged expansion valve?
Also - the coolant temp stays at 85C, even at 110F outside, ACC on,
and city driving. The aux fan does turn on, so I figure the ACC is
triggering it.

TIA,

OK Don, KD5NRO
Norman, OK
The Americans will always do the right thing... after they've
exhausted all the alternatives.
Sir Winston Churchill
'90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager





Re: [MBZ] 300SDL ACC - not cold

2006-08-20 Thread OK Don

I didn't feel them - but I did replace the mono valve diaphragm this
spring - it's less than 5 months old.

On 8/20/06, archer [EMAIL PROTECTED] wrote:


Have you felt the hoses going to the monovalve?  The monovalve plunger in my
'83 300D was corroded and very sticky.  It could have been powered and still
not operate.  I also seem to remember that a diaphragm in the monovalve can
go bad.
Gerry



--
OK Don, KD5NRO
Norman, OK
The Americans will always do the right thing... after they've
exhausted all the alternatives.
Sir Winston Churchill
'90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager



Re: [MBZ] 300SDL ACC - not cold

2006-08-20 Thread Kaleb C. Striplin
pressures seem OK to me.  You need to pull the monovalve and check to 
see if the diaphram is torn.


OK Don wrote:


The air had been getting warmer over the last several months - just
like the outside air. I've been letting our son drive it most of the
summer, but I drove it yesterday (~100F), and it was miserably hot in
the car - the air never cooled below 90Fcoming out of the center
vents.
I have an indicator light wired in that tells me that the mono valve
is powered - therefore is closed.
The car was converted to R134a by the PO.
So, I figured that I have a freon leak - so hooked up the gauges and
checked the pressures. At  95F outside air, the high was 240ish at
idle, going to 280 at 2k rpm or so, and the low was around 50 at idle
and 30ish at 2k rpm. Does any of this give any clues to way it isn't
cooling?
Clogged expansion valve?
Also - the coolant temp stays at 85C, even at 110F outside, ACC on,
and city driving. The aux fan does turn on, so I figure the ACC is
triggering it.

TIA,

OK Don, KD5NRO
Norman, OK
The Americans will always do the right thing... after they've
exhausted all the alternatives.
Sir Winston Churchill
'90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager

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Kaleb C. Striplin/Claremore, OK
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