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got a oil leak on the 5.7

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Old 11-27-2005, 09:05 AM
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Default got a oil leak on the 5.7

ok so where are some spots to look for oil leaks in a motor that was torn down cleaned and put back together??
Old 11-27-2005, 10:19 AM
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seems to be while sitting still
Old 11-27-2005, 11:01 AM
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Could be alot of different spots...where's the oil coming from, front or rear of the engine, rt or left side? Could be front or rear cover, front or rear crank seal, oil pan gasket, valve cover gaskets, oil pressure sender, oil filter, etc...
Old 11-27-2005, 01:35 PM
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Originally Posted by budhayes3
Could be alot of different spots...where's the oil coming from, front or rear of the engine, rt or left side? Could be front or rear cover, front or rear crank seal, oil pan gasket, valve cover gaskets, oil pressure sender, oil filter, etc...

THAT SUMS IT UP
Old 11-27-2005, 02:02 PM
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always start from the top.

oil flows down, not up. a common mistake is to see oil coming from somwhere like an oil pan and assume it is an oil pan gasket. the oil can be dripping from the intake, down the block and cling in the gap between the pan and block.

start up.
Old 11-27-2005, 02:09 PM
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Originally Posted by treyZ28
always start from the top.

oil flows down, not up. a common mistake is to see oil coming from somwhere like an oil pan and assume it is an oil pan gasket. the oil can be dripping from the intake, down the block and cling in the gap between the pan and block.

start up.
Thank god for gravity
Old 11-27-2005, 02:14 PM
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Gotta take extreme care when tightening the front and rear covers. And the oil pan. Front main seal can be problematic. Did you have the rear cover off?? That seal is a bitch and a half to get over the crank. Like mentioned before, see where its coming from. Buy a can of brake cleaner and start spraying places clean. Start peeking to see where its oozing from.
Old 11-27-2005, 05:04 PM
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It A Rear Crank Seal.. How Can I Install A New One Without The "gm Tool"? The Old One Is Ripped..
Old 11-27-2005, 05:43 PM
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Originally Posted by 4.8T
It A Rear Crank Seal.. How Can I Install A New One Without The "gm Tool"? The Old One Is Ripped..
It is very very hard. You just have to use a feeler gauge and weasel it on. Do not oil it either!!!! Its best to get a helper honestly. Take your time, each of you just work the seal with feeler gauges and push it over the crank easily. Take your time, youll get it.
Old 11-27-2005, 06:04 PM
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thats nice i have about 6-8" to work with betweent the motor and trany will it be easier to just pull the motor the rest of the way out to do this is it that hard?


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