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Vacuum Pump Rebuild? 1983 300CD
Just got an 83 300CD Turbo Diesel and I want to go thru it and do the obvious such as belts, hoses, alternator and some other things to insure reliability over the long term. Motor seems in very good condition and starts well at 0 degrees. The question is should I rebuild the vacuum pump while I have the front of the engine apart for all these other things..Mileage on the motor is unknown but I have heard that vacuum pump failure is catastrophic on this engine. Thanks
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83 300CDTurbo 307,000 2005 Honda Element 266,000 56 Nash Ambassador Country Club Special 34,000(under restoration presently) http://www.peachparts.com/shopforum/car-audio-multimedia/125099-123-install-extreme-dynamat.html |
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I'm from the "if it ain't broke, don't fix it" school myself...
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"that vacuum pump failure is catastrophic on this engine."
If that is true I would sure rebuild it... the type I have on car is not that way... and it gave way within two months of me getting the car... When I get a car new to me I change all the fluids, belts, etc.. and I would sure sleep better knowing it had been ' maintained' ..... |
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Quote:
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I could sure be wrong here, but wouldn't a pump with bad bearings make some weird noises before catastrophic failure. I always check out the bearings when ever I have one off but I wouldn't change it just as a "preventave" maintinance job, I donno, maybe one should???
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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iI just had the pleasure of rebuilding my entire vacuum system. For some reason every thing made from rubber on my car has rotted away.
The last thing I did was rebuild the vacuum pump. This is because it was making vacuum but just not enough. Now that I know what is inside the next time I do it its going to be a 20 min job. If you run out of vacuum after a couple of pumps of the break or you car takes a while to turn off all I recommend replacing are the little valves that can be accessed by removing the screws on the front of the vacuum pump. Besides these valves the only other thing that comes with the pump rebuild kit is the piston ring and seal. I can’t see how that could go bad considering mine looked like new, and to replace this you have to remove the vacuum pump from the engine. This is a real pain in the ***. |
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I don't have a lot to add, but I did want to say I agree with Tangofox007 that rebuilding with a new rocker assembly will cost $250. The rocker assembly is the part with the ball bearings that could come apart and wreck your engine. Since this is only about a 1" diameter bearing, I doubt it would make much noise before it destructs....you probably wouldn't know it was failing until it was too late.
I think your intentions are sound in trying to go through your new old vehicle and replace things that may cause you unreliability, but I am of the opinion that with 15 or 20 thousand parts on the car, you just aren't going to be able to check/repair/replace everything. There are literally hundreds of things that could break tomorrow and stop you cold. My philosophy is repair the obvious things and drive it. The car will let you know what needs to be fixed in time. Face up to it, you have purchased a used car and until you develop some history you are flying blind. My $.02 worth. Good luck!
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1976 240D 1987 560SL 2007 E320 Bluetec 1998 C280 (now son’s car) 1982 240D Manual - Sold |
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