Re: [MBZ] AC bungholery
> detecting a rpm differential--seizure is imminent. If it's seizing up the debris could foul the reed valves, causing your pressure symptoms. -- Jim ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
> The compressor is starting to get noisy too. I can really feel the > engine > bogging down when the clutch engages, so I suspect the speed sensor is > detecting a rpm differential--seizure is imminent. If that's it it will cycle off and not come back on until the Klima is power-cycled. If it comes back on by itself it's going off for some other reason. -- Jim ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
The compressor is starting to get noisy too. I can really feel the engine bogging down when the clutch engages, so I suspect the speed sensor is detecting a rpm differential--seizure is imminent. On 8/5/07, Jim Cathey <[EMAIL PROTECTED]> wrote: > > > Also, the compressor is now cycling off if I raise the rpms much above > > idle. I strongly suspect that my compressor is shot---gr. > > Why would it? Some sensor has to command this, so find out which > it is and that'll tell you more about the problem. > > > Jim, how have you previously discharged your AC systems operating with > > Gaz > > d' Cathey? Place the hose in a bucket of h2o and allow for plenty of > > ventilation, or what? > > Vent to the air, slowly. I do all AC servicing outside. Usually I > don't have to discharge them, the system manages to handle that for me! > > -- Jim > > > ___ > 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: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > -- Casey __ '87 300TD intercooler/propane/biodiesel '94 100CSQ Avant '90 90Q '89 Bluestar ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
> Also, the compressor is now cycling off if I raise the rpms much above > idle. I strongly suspect that my compressor is shot---gr. Why would it? Some sensor has to command this, so find out which it is and that'll tell you more about the problem. > Jim, how have you previously discharged your AC systems operating with > Gaz > d' Cathey? Place the hose in a bucket of h2o and allow for plenty of > ventilation, or what? Vent to the air, slowly. I do all AC servicing outside. Usually I don't have to discharge them, the system manages to handle that for me! -- Jim ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
An Ebay seller claims the following model/years use the Nippondenso 10P15C compressor: 1985-1993 190E 1987-1989 260E 1986-1993 300E 1988-1993 300SE, 300SEL 1988-1993 300CE ,300TE 1990-1993 300D 2.5L 1986-1987 300 TD, 300SDL Unfortunately, other sites claim that some of those models use the 10PA15C--it's confusing. Also, the compressor is now cycling off if I raise the rpms much above idle. I strongly suspect that my compressor is shot---gr. Jim, how have you previously discharged your AC systems operating with Gaz d' Cathey? Place the hose in a bucket of h2o and allow for plenty of ventilation, or what? TIA On 8/5/07, tom savage <[EMAIL PROTECTED]> wrote: > > Mercedes inconveniently lists the AC compressor as an engine part and > not a chassis part, so it is difficult to say on which cars that > compressor appeared. But it looks like the 260E used the same > compressor, as did most 124s: > > A000230 (most recent supercession of the original) > > North America Car M 103 942 > North America Car M 602 942 947 > North America Car M 602 911 912 931 940 961 962 > North America Car M 606 910 > North America Car M 603 960 > North America Car M 102 985 > North America Car M 602 911 961 962 > North America Car M 603 912 931 960 963 972 > North America Car M 102 910 919 922 924 945 946 962 963 982 > 985 > North America Car M 103 940 941 942 980 981 982 983 > North America Car M 910 > > Casey __ '87 300TD intercooler/propane/biodiesel '94 100CSQ Avant '90 90Q '89 Bluestar ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
Zeitgeist wrote: > Anyone know if other model Benzes used the same Nippondenso compressor in > '87. As Zach alluded, there's an '87 260E in the local Pick-a-Part, and > it'd be great if that compressor were the same. Mercedes inconveniently lists the AC compressor as an engine part and not a chassis part, so it is difficult to say on which cars that compressor appeared. But it looks like the 260E used the same compressor, as did most 124s: A000230 (most recent supercession of the original) North America Car M 103 942 North America Car M 602 942 947 North America Car M 602 911 912 931 940 961 962 North America Car M 606 910 North America Car M 603 960 North America Car M 102 985 North America Car M 602 911 961 962 North America Car M 603 912 931 960 963 972 North America Car M 102 910 919 922 924 945 946 962 963 982 985 North America Car M 103 940 941 942 980 981 982 983 North America Car M 910 Tom ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
Tearing into compressors generally requires more dollars in special tools than the price of a new compressor. Speaking of which, that compressor that you bought a year or two ago, was it new or rebuilt. If it was rebuilt, chances are , it's a bum compressor. I quit wasting my time and customer's money on rebuilt compressors a long time ago. Quality control is junk on most, and you can get a new one for about the same price . --Robert Zeitgeist wrote: > I gather the reed valves are internal and non-DIY accessible--correct? > Damn, I just bought that compressor a year or two ago. > > Anyone know if other model Benzes used the same Nippondenso compressor in > '87. As Zach alluded, there's an '87 260E in the local Pick-a-Part, and > it'd be great if that compressor were the same. > > On 8/4/07, Jim Cathey <[EMAIL PROTECTED]> wrote: > >> 1) Low charge >> 2) leaking reed valves in compressor >> >> >> > Casey > __ > '87 300TD intercooler/propane/biodiesel > '94 100CSQ Avant > '90 90Q > '89 Bluestar > ___ > 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: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
Toyota, Benz, and Nissan, along with occasional US makers, used that compressor. Nippondenso, don't have the model number handy. Used in the W126, W124 chassis, Camry, Accord, and other. Take a look. Check the low pressure switch for a short first, and check to make sure the clutch is good (although the system should fault and toss out the compressor if the clutch is slipping). Reed valves are on the ends of the piston chambers in the compressor, NS without dissasembly. Watch when you take it out -- if there is gray crud all over, you really need to flush the you-know-what out of it and install a filter in the suction line, else the new compressor will follow the old. Best to replace everything, sadly. Peter ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
Oh, and another possibility is that your gauges are not making good connection to the system and are lying. I've had this happen, it caused me to replace (unnecessarily) the compressor in the Chicken Wagon. http://userweb.windwireless.net/~jimc/cwair.html -- Jim ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
> I gather the reed valves are internal and non-DIY accessible--correct? Yes. Reed valves can be broken if the compressor sucks liquid refrigerant. > Anyone know if other model Benzes used the same Nippondenso compressor > in > '87. As Zach alluded, there's an '87 260E in the local Pick-a-Part, > and > it'd be great if that compressor were the same. I suspect it is the same, but I do not know for sure. One other possibility is that the expansion valve is somehow extra-open such that the compressor has nothing to push against. That would show heavy flow but no real pressure or suction. But I'm not sure it can actually do this. -- Jim ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
I gather the reed valves are internal and non-DIY accessible--correct? Damn, I just bought that compressor a year or two ago. Anyone know if other model Benzes used the same Nippondenso compressor in '87. As Zach alluded, there's an '87 260E in the local Pick-a-Part, and it'd be great if that compressor were the same. On 8/4/07, Jim Cathey <[EMAIL PROTECTED]> wrote: > > > 1) Low charge > 2) leaking reed valves in compressor > > Casey __ '87 300TD intercooler/propane/biodiesel '94 100CSQ Avant '90 90Q '89 Bluestar ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
Yea, that too, could be low.
Peter Frederick wrote:
> Way low on freon -- high side at 70F and 1500 rpm with compressor
> engaged should be about 250 psi. The other choice is a bad compressor,
> but you should have more pressure than that in the low side if the
> compressor is bad. May have a bad low pressure cutout switch (or it's
> wired around) too.
>
> The evaporator can be cleaned by removing the blower and spraying it
> with evaporator cleaner (don't use anything that can corrode aluminum).
> Likely the screed over it is packed solid with crap.
>
> You do NOT want to remove the evaporator if it is not indeed
> leaking.
>
> On Aug 4, 2007, at 6:21 PM, Zeitgeist wrote:
>
>> So, my AC ('87 300TD) seems to be experiencing multiple failure modes.
>> One
>> is the weak output of the fan. The other is the weak output of
>> cooling. I
>> suspect the former is due to clogged evaporator coils, which apparently
>> can't be rectified short of a complete dash removal. The fan appears
>> (by
>> the sound of it) to be working at normal speeds.
>>
>> The latter issue is more mystifying. Here are the symptoms:
>>
>>- Low side readings = 50 psi
>>- High side readings = 65 psi
>>- Vent temps = 50 degrees @ ~70 degrees ambient
>>- Compressor engages, yet doesn't cycle off and on as I'd suspect if
>>there were a low charge level.
>>- sight glass is cloudy
>>
>> Any thoughts? Any at all?
>>
>> --
>> Casey
>> __
>> '87 300TD intercooler/propane/biodiesel
>> '94 100CSQ Avant
>> '90 90Q
>> '89 Bluestar
>> ___
>> 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:
>> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>
>
>
> ___
> 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:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>
--
Kaleb C. Striplin/Claremore, OK
94 E420, 92 300D, 92 250D Turbo, 92 300E 4Matic, (2x) 91 300D,
90 420SEL, 89 560SEL, 89 260E, 87 300SDL, 87 300TD, 85 380SE 5.0 Euro,
81 240D, 81 380SLC, 80 240D, 76 240D, 76 300D, 72 250C, 69 250
http://www.okiebenz.com
___
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Re: [MBZ] AC bungholery
Well the evaporator is easy to clean. Just pull the fan and its right
there. Takes all of 10 minutes at most to get it removed.
On the pressures, sounds like your compressor is not compressing to me.
Zeitgeist wrote:
> So, my AC ('87 300TD) seems to be experiencing multiple failure modes. One
> is the weak output of the fan. The other is the weak output of cooling. I
> suspect the former is due to clogged evaporator coils, which apparently
> can't be rectified short of a complete dash removal. The fan appears (by
> the sound of it) to be working at normal speeds.
>
> The latter issue is more mystifying. Here are the symptoms:
>
>- Low side readings = 50 psi
>- High side readings = 65 psi
>- Vent temps = 50 degrees @ ~70 degrees ambient
>- Compressor engages, yet doesn't cycle off and on as I'd suspect if
>there were a low charge level.
>- sight glass is cloudy
>
> Any thoughts? Any at all?
>
--
Kaleb C. Striplin/Claremore, OK
94 E420, 92 300D, 92 250D Turbo, 92 300E 4Matic, (2x) 91 300D,
90 420SEL, 89 560SEL, 89 260E, 87 300SDL, 87 300TD, 85 380SE 5.0 Euro,
81 240D, 81 380SLC, 80 240D, 76 240D, 76 300D, 72 250C, 69 250
http://www.okiebenz.com
___
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Re: [MBZ] AC bungholery
>- Low side readings = 50 psi >- High side readings = 65 psi >- Vent temps = 50 degrees @ ~70 degrees ambient >- Compressor engages, yet doesn't cycle off and on as I'd suspect if >there were a low charge level. >- sight glass is cloudy 1) Low charge 2) leaking reed valves in compressor -- Jim ___ 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: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] AC bungholery
Go buy the 300E at pickapart (probably $300-400 if the engine is still
there) and do some dissection of the dash and AC on that before you
fuck with the nice car...
That is my advice..
-Zach
--- Zeitgeist <[EMAIL PROTECTED]> wrote:
> So, my AC ('87 300TD) seems to be experiencing multiple failure
> modes. One
> is the weak output of the fan. The other is the weak output of
> cooling. I
> suspect the former is due to clogged evaporator coils, which
> apparently
> can't be rectified short of a complete dash removal. The fan
> appears (by
> the sound of it) to be working at normal speeds.
>
> The latter issue is more mystifying. Here are the symptoms:
>
>- Low side readings = 50 psi
>- High side readings = 65 psi
>- Vent temps = 50 degrees @ ~70 degrees ambient
>- Compressor engages, yet doesn't cycle off and on as I'd suspect
> if
>there were a low charge level.
>- sight glass is cloudy
>
> Any thoughts? Any at all?
>
> --
> Casey
> __
> '87 300TD intercooler/propane/biodiesel
> '94 100CSQ Avant
> '90 90Q
> '89 Bluestar
> ___
> 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:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>
___
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For used parts email [EMAIL PROTECTED]
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Re: [MBZ] AC bungholery
Way low on freon -- high side at 70F and 1500 rpm with compressor
engaged should be about 250 psi. The other choice is a bad compressor,
but you should have more pressure than that in the low side if the
compressor is bad. May have a bad low pressure cutout switch (or it's
wired around) too.
The evaporator can be cleaned by removing the blower and spraying it
with evaporator cleaner (don't use anything that can corrode aluminum).
Likely the screed over it is packed solid with crap.
You do NOT want to remove the evaporator if it is not indeed
leaking.
On Aug 4, 2007, at 6:21 PM, Zeitgeist wrote:
> So, my AC ('87 300TD) seems to be experiencing multiple failure modes.
> One
> is the weak output of the fan. The other is the weak output of
> cooling. I
> suspect the former is due to clogged evaporator coils, which apparently
> can't be rectified short of a complete dash removal. The fan appears
> (by
> the sound of it) to be working at normal speeds.
>
> The latter issue is more mystifying. Here are the symptoms:
>
>- Low side readings = 50 psi
>- High side readings = 65 psi
>- Vent temps = 50 degrees @ ~70 degrees ambient
>- Compressor engages, yet doesn't cycle off and on as I'd suspect if
>there were a low charge level.
>- sight glass is cloudy
>
> Any thoughts? Any at all?
>
> --
> Casey
> __
> '87 300TD intercooler/propane/biodiesel
> '94 100CSQ Avant
> '90 90Q
> '89 Bluestar
> ___
> 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:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>
___
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[MBZ] AC bungholery
So, my AC ('87 300TD) seems to be experiencing multiple failure modes. One
is the weak output of the fan. The other is the weak output of cooling. I
suspect the former is due to clogged evaporator coils, which apparently
can't be rectified short of a complete dash removal. The fan appears (by
the sound of it) to be working at normal speeds.
The latter issue is more mystifying. Here are the symptoms:
- Low side readings = 50 psi
- High side readings = 65 psi
- Vent temps = 50 degrees @ ~70 degrees ambient
- Compressor engages, yet doesn't cycle off and on as I'd suspect if
there were a low charge level.
- sight glass is cloudy
Any thoughts? Any at all?
--
Casey
__
'87 300TD intercooler/propane/biodiesel
'94 100CSQ Avant
'90 90Q
'89 Bluestar
___
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:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
