why is this happening. i pulled the vacuum pump off the shaft that drops down into the engine block and there is oil all over the place. oil seems to be coming up the shaft and entering the pump and blowig thru it and leaking all over my motor. the oil is affecting the starter and i am already in need of my third starter in as many months. i am surching online for pumps online but it seems to only come with the pump and not the shaft. my pump seems to work fine with the engine running it creates suction and i have no problems in that area. but oil still comes out the left side of the pump. any one have this problem and what part should i replace the pump or the shaft.