Hi I was advised to move my post here, I am not just repeating my post..

Vaccum-1987 300TD-and other questions...
I have been troubleshooting a rough shifting tranny, but before I buy or rebuild my vaccumm pump, I would like to know what the vaccum generated by the pump should be. Currently, with all of the circuits blocked off and only the vaccum gauge attached I am getting a reading of 12mm Hg. With the circuits attached, the best I was able to get was 8 mm Hg. This was done at idle and at up to 1500 to 2000 rpm. Is there a repair kit for this pump or do I have to bite the bullet and purchase a new or rebuilt pump? I see where check valves are offered but I believe that they fit other models and years.
I checked my vaccum pump and am unsure if mine is one that merits replacement because it is prone to dropping bearings into the timing chain. Anybody have pics?
I would also like to simplify my vacumm system by removing all that is not pertinent to the operation of the car. I have read articles about removing the EGR valve, but see that there are other items that could be eliminated (if doable without causing harm) such as the recirculating air valve, the vacumm transducer for the EGR, the vacumm transducer for the recirculating air valve, etc. In other words, I want to clean up the engine compartment without doing harm to the engine. BTW, I am currently converting this car to run on waste veggie oil.
I also have access to a waterjet and a complete machine shop so I could reasonably have any block off plates built for this project. Thank you

Here's a start on the vacuum level:
http://www.peachparts.com/shopforum/showthread.php?t=224448

__________________

Gone to the dark side

- Jeff

For starters, replace the 5-way tree atop the vacuum pump with a 3-way tree, foregoing the two lines that go towards the right headlight. That will disable EGR and ARV. Those valves could be stuck partially open so consider checking and/or adding positive blocks.

The basic check for the vacuum pump = if the front cover has 4 screw heads visible, you're probably in good shape. If it doesn't have screw heads...

Sixto
87 300D

OK-no screw heads visible, I guess it needs to be replaced? I will get a 3 way tree, but for the time being, will block off the 2 going to the right.

thanks