I was thinking about it last night, and I think you are correct. The one valve by itself is probably the one that needs to be flipped, though I put them all back in the same as they came out, (I am pretty sure of that). I guess we will fool with it a bit again today, try to just take the cover off without taking the whole thing off again (what a pain job that is).
--R Allan Streib wrote: > If yours is like mine, one of the three check valves (the one by > itself) is inverted compared to the other two. You'll notice that the > pump cover has a recess over that valve to accomodate it being "upside > down" compared to the others. > > I made exactly the same mistake assembling mine. I put all three > valves in the same way. I should have, but did not, notice which way > they were oriented when I took the pump apart. But on my first > attempt, I put it all back together, and NO vacuum. I was able to > remove the cover and flip that one valve over without entirely > removing the pump, though getting the convoluted "o-ring" that seals > the cover back in place with the pump body on the car was a bit > touchy. I had perfect vacuum after that. > > Allan > -- > 1983 300D > > > Rich Thomas <[EMAIL PROTECTED]> writes: > > >> Vac pump on the 84 300SD was not sucking, so the boy and I rebuilt it >> this afternoon/evening. Fired the car up and NO VACUUM! Well, only >> about 4psi on the MityVac gauge. Not sure what the problem is now. >> Looked like one of the check valves in the pump was munched, we replaced >> everything in the kit -- piston ring, 3 check valves/seals, rubber "O >> ring" (it really isn't an "O" but looks like one with a bunch of other >> features). All went back together well. I do not have the repair >> manual on this computer, I wonder if I got a check valve in backwards? >> The old ones all appeared to be oriented all the same way, we put the >> new ones in all the same way. >> >> Any ideas? >> >> --R >> >> _______________________________________ >> 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
