Quote:
Originally Posted by rrjohnso2000
I have never heard of this. Have you checked the mating surfaces with a machinists straight edge? I know checking the block may be difficult/not possible but the new pump could be checked. I know you do a lot of work on our cars so take no offense but are you sure the mating surfaces were completely clean and free of debris. If you installed while still in the car something could have easily gotten in while you were installing it. good luck
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No offense taken at all. When I originally installed the pump, the engine was out of the car. After I reinstalled the engine and got it running, I noticed the leak once the engine warmed up. Then I removed the pump with the engine still in the car and checked the mating surfaces and gasket for any foreign matter or old gasket material, which I really expected and was hoping to find, but didn't. The block had been dipped and stripped, so it was very clean, as was the pump. With the gasket removed, I mated the pump back on the block to see if I could see any gaps or slop in the fitment. It looked good for as much as I could see. (I didn't think to use a straight-edge at that point. Wish I had now). When I re-installed the pump and got the engine running again, the leak was exactly the same as before.
A good friend of mine, and former Chrysler mechanic, suggested using some leak detection "dye" and a blacklight to be able to better pinpoint the origin of the leak. It's very difficult to see the oil on a freshly painted gloss-black block. So I may try this if I end up taking this thing apart again.