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View Full Version : pilot bushing hole filling up with oil?



cavemod
03-17-2011, 09:05 PM
I got an aftermarket 4340 crank and the pilot bushing hole fills up with oil?never looses oil pressure and runs great but end up with a little puddle of engine oil on my trailer the size of a cd after my 30 minute ride home from the track.the back of the pan isn't oil soaked either.wasn't too concerned but took my bert out to get freshened and the pilot bushing hole was full of green brad penn.any ideas??motor never gets over 210 no other leaks anywhere else that i can see.

stockcar5
03-17-2011, 09:28 PM
if your crank is gundrilled the plug on the back is leaking. install a new one and reseal with green block sleeve retainer.

yelloblue2
03-17-2011, 09:29 PM
i've seen this in straight line car it was a bad casting of the crankshaft,we changed every thing pan gasket, checked block plugs etc. put an oil dye in it and you could see where it was coming out the end of the crank. hope this helps.