Throttle Linkage Damper on 240D

[nategodin]

Hello,
In the process of removing EGR-related components, I noticed that there were some missing pieces in my throttle linkage. I have ordered a pair of bushings (#76) thanks to the recent thread which brought their existence to my attention. I'm also missing the damper, #21 in the diagram below. The car seems to have run fine for the last year without it; does anyone know exactly what the function of the damper is and how crucial it might be to replace? I'm going to check out a parts car this weekend, so I might have the chance to pick one cheap. If I can't get a used one, and it's an important part of the linkage, I guess I'll have to head to the stealership. Please advise.

Thanks,
Nate

[sokoloff]

Can't answer your questions, but if those bushings you get turn out to be the right part, let me know the part number please. I have tried to get them twice and both times I ordered what I thought was the right part number, but it wasn't the right part.

Len
'83 240D

[nategodin]

They are part number 202-301-00-93... I got the information from this thread.

Nate

[bennett]

there are two of those throttle guide bushings btw..

[bennett]

Originally Posted by sokoloff

Can't answer your questions, but if those bushings you get turn out to be the right part, let me know the part number please. I have tried to get them twice and both times I ordered what I thought was the right part number, but it wasn't the right part.

Len
'83 240D

I put the number in Rustys search without the dash in between number and the part shows the correct part .. are they sending you the wrong one?

[nategodin]

I ordered them from FastLane.

[PatrickW]

Did replacing the dampener make any difference?

Today my idle was very high, and upon investigation I discovered that the dampener (#21 in the diagram above) had come out of it's lower ball & socket joint and was jammed under the throttle linkage.

I removed it, and it's shot.

How critical is this thing...?

- Patrick

[t walgamuth]

i think the damper is related to emissions and not crutial to ordinary operation. i just had my rebuilt 240d engine installed in another 240d same year and somehow the wrong damper got fitted. it was too long and restricted the throttle travel. my mechanic called in a panic wanting to change the injector pump, etc. he said the car wouldnt go over 30... which is too slow even for a 240. i told him it couldnt be the ip and to look at algae in the tank and the filters, etc all the simple things. he called back later and said he discovered that this little shock absorber thing was too long. so we threw it away. and now the 240 is really fast... well you know, like a 240 is. ..more than 30.

[dieseldiehard]

Originally Posted by PatrickW

Did replacing the dampener make any difference?

Today my idle was very high, and upon investigation I discovered that the dampener (#21 in the diagram above) had come out of it's lower ball & socket joint and was jammed under the throttle linkage.

I removed it, and it's shot.

How critical is this thing...?

- Patrick

It is critical NOT to let anything get jammed under the other linkage, that can lead to a runaway engine, or worse.

[jsp]

Hi Nate,

Could you pls. tell me your source for the parts diagram (also a list of part names to match the numbers)? I'm trying to find out the names of the linkage parts which connect from the valve cover to the air intake on the passenger side. I don't think I saw this parts diagram in the skinnerbox site.

Originally Posted by nategodin

Hello,
In the process of removing EGR-related components, I noticed that there were some missing pieces in my throttle linkage. I have ordered a pair of bushings (#76) thanks to the recent thread which brought their existence to my attention. I'm also missing the damper, #21 in the diagram below. The car seems to have run fine for the last year without it; does anyone know exactly what the function of the damper is and how crucial it might be to replace? I'm going to check out a parts car this weekend, so I might have the chance to pick one cheap. If I can't get a used one, and it's an important part of the linkage, I guess I'll have to head to the stealership. Please advise.

Thanks,
Nate

[dieseldiehard]

the dampner has nothing to do with emissions, it is simply a linkage that has a moveable section to prevent engine vibrations from affecting the position of the accelerator pedal. I have some dampners, but what application they were from I can't tell, but if one knew the right length I would measure them. These came in at least two lengths and were used on gassers too. It can be bypassed with a straight section with ball joints if you have one with little problem, just you might feel your pedal moving up and down if your engine is not running smoothly.