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Originally Posted by richtazz
It is possible he shifted the lower intake while installing it, knocking the bead of silicone out. Also, did he replace the oil pump drive o-ring while he had it torn down? This is a very common oil leak on the 3.1. It is situated in the block under the throttle body. It's essentially a distributor shaft with the top part cut off and drives the oil pump via a gear off the camshaft. The o-ring shrinks and hardens and leaks oil like a sieve. Fel-Pro part number is 70800, and I also put a paper gasket (70194) as added insurance against future leaks. This o-ring isn't "technically" part of an intake job, but not replacing it while you have it torn down is silly if you know anything about the 3.1 engine.
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mechanic cleaned the engine leak. it was running alot down the front around the starter area. he ran the car and found the leak to be from the "o" ring. he tried unsuccessfully to pull the "o" ring. he could not get it out. he said he did not have enough room . we decided to put the job off till after the hoildays. NOW the weird thing !! the car is driven daily and i ain,t seeing any oil leaking. is it possible that he twisted the part into a sealing position ?? if it don,t spring a leak again,i doubt that i,ll ask him to do the whole job again. jim.