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iNeon
Date registered: Dec 1899
Location:
Vehicle(s):
| Adjusting the Transmission
Shlomo(79 240D, 153k, Automatic) seems to slip(it's almost a double shift, thu-thunk feeling) in the 1-2 shift and revvs from 2-3, he also immediately shifts to 4th sometimes.
Pedal pressure seems to help it, if you let up on the shifts, it seems to help matters, but I was wondering if it is something so simple as an adjustment? I've fiddled with the Bowden Cable and that doesn't do a lot, I think it is correct, but is there another point of adjustment?
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Dieselburns
Expert
Date registered: May 2006
Location: New York, Long Island
Vehicle(s): 78' MB 300D 87 Chief Cherokee
Posts: 2251
| RE: Adjusting the Transmission
My 300D does the same thing, its anoying! |
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iNeon
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Adjusting the Transmission
Well, I know the car has vacuum issues, and a million other things because of it, but I just don't think I am capable of doing it all.
The brakes are hard, the shut-off valve is leaking oil onto the drivers mat, the entire locks/cruise-control system is in-op, the driveline mounts need to be changed, the front suspension rebuilt, the transmission shifts funnily, the charging system is STILL squirreley and the rear bumper needs to be replaced.
But the air conditioner is 55 degrees at night, 62 during the day and the engine and radio work very well-- so I don't worry too much. |
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jdc1244
Date registered: Dec 1899
Location:
Vehicle(s):
| RE: Adjusting the Transmission
Pull the door lock vacuum lines out. They are in the engine compartment near the oil filter canister. That fixed my flairing transmission. |
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iNeon
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Adjusting the Transmission
The door locks have been manual since a long long while ago!
The only things hooked up are transmission, brakes(that still don't get any assist) and engine shut-off.
Could this be because of an overabundance of vacuum because of the locks/cruise not being hooked up? |
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Dieselburns
Expert
Date registered: May 2006
Location: New York, Long Island
Vehicle(s): 78' MB 300D 87 Chief Cherokee
Posts: 2251
| Re: Adjusting the Transmission
iNeon - 8/10/2006 11:36 PM
The door locks have been manual since a long long while ago!
The only things hooked up are transmission, brakes(that still don't get any assist) and engine shut-off.
Could this be because of an overabundance of vacuum because of the locks/cruise not being hooked up?
I complain about my tranny on the 300D in benz world and some one reply this to me "Replace or adjust the vacuum modulator valve on the side of the transmission" Thats the only reason I got for my transmision going crazy. It could be the reason why, I have to invistigate on that A.S.A.P |
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BenzDieselTuner
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Adjusting the Transmission
no, if ur power assisted brakes arent working, then im sure u need a vacuum pump.......thats what solved all my problems.......luckily, this is an easy problem to test for, just disconnect the line to the brake booster from the pump, and put ur finger over it, while the motor runs, if it sucks, then u have pressure, if no, then u have no pressure......... |
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iNeon
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Adjusting the Transmission
I bought a mightyvac and checked the vacuum-- it seems like it was around 20" of vacuum? It's been a while, but I know the vacuum pump works ok.
It might be the master cylinder or the booster itself. When I push the brakes when first putting the car into gear, I can hear a distinct hiss, and sometimes the brakes feel as if the assist is working, but only once in a blue moon-- and only for one press of the pedal. |
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BenzDieselTuner
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Adjusting the Transmission
could be a bad booster, OR a WEAK vacuum pump............ |
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iNeon
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: Adjusting the Transmission
There doesn't seem to be any provision for adjusting the transmission on the car, there are a few levers and what looks like a brass box on the side that has a little water shield over the top of what I think is a vacuum line(very covered in oily dirty schmutz) but it doesn't look like there is any way to do anything with it.
Oh well. |
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