oil leak on my 5.0

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oil leak on my 5.0

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Mustang >> Ford Mustang Tech >> 5.0 Mustang >> oil leak on my 5.0

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oil leak on my 5.0 - 5/12/2008 11:24:35 AM

joe_5.0

Posts: 68
Joined: 5/1/2008
From: oregon
Status: offline

when i bought my car i knew it had an oil leak but the guy i bought it from said he didnt know where.its a slow leak but when the engine heats up it starts to burn the oil off.i took a look and it seems like the smoke comes down low from the back of the engine near the transmission so im thinkin rear main seal what else could it be?

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RE: oil leak on my 5.0 - 5/12/2008 12:06:30 PM

FASTBLACK

Posts: 2718
Joined: 5/27/2007
From: Warner Robins,GA
Status: offline

It could be your lower intake as well as several other area's.

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RE: oil leak on my 5.0 - 5/12/2008 4:08:10 PM

joe_5.0

Posts: 68
Joined: 5/1/2008
From: oregon
Status: offline

crap......,i think i might buy my self an engine stand and build a 351w instead of workin my 5.0,i wanted to keep fuel injection if i used the 5.0 but i dont care if i swap motors

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RE: oil leak on my 5.0 - 5/12/2008 4:53:40 PM

ryan_89_mustang

Posts: 679
Joined: 10/5/2006
Status: offline

Why go through spending the money to go carb when all you have is a oil leak. The part of the engine on a fullie that differs from a carb is the intake. It could be something as simple as the valve covers leaking onto the headers.

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RE: oil leak on my 5.0 - 5/12/2008 5:18:48 PM

mjr46

Posts: 10880
Joined: 6/13/2007
Status: offline

could be the valve covers

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RE: oil leak on my 5.0 - 5/12/2008 5:24:34 PM

droptop302

Posts: 409
Joined: 5/12/2008
Status: offline

check you pcv.

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RE: oil leak on my 5.0 - 5/12/2008 6:41:30 PM

HACKGT350

Posts: 5862
Joined: 1/28/2006
Status: offline

what else is new another 5.0 leaking oil. just pull the engine and replace the gaskets and youll be fine

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RE: oil leak on my 5.0 - 5/12/2008 9:49:30 PM

cdougherty

Posts: 30
Joined: 7/2/2007
Status: offline

I had the same issue, replaced the valve cover gaskets fixed the problem. Then I found a local shop to do an underbody steam clean to clean it all up. Good as new!

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RE: oil leak on my 5.0 - 5/15/2008 9:54:41 AM

joe_5.0

Posts: 68
Joined: 5/1/2008
From: oregon
Status: offline

i put my hand onto the back of the motor from the driver side of the car to about the middle of the engine, and it had a thick coating of sludge and oil on the head and i believe the intake.this summer i think ill just go through with my original build plan since i want to change the intake and heads anyway and i can just replace head, valve cover and intake gaskets all at once. i got a question though,whats a better sealent?:a good gasket set or silicone?

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RE: oil leak on my 5.0 - 5/15/2008 10:45:01 AM

FASTBLACK

Posts: 2718
Joined: 5/27/2007
From: Warner Robins,GA
Status: offline

I use felpro gaskets on valve covers and intake. But instead of using the end piece's for the intake use the RTV there.

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RE: oil leak on my 5.0 - 5/15/2008 11:36:07 AM

joe_5.0

Posts: 68
Joined: 5/1/2008
From: oregon
Status: offline

whats the pvc?

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RE: oil leak on my 5.0 - 5/17/2008 9:59:31 AM

gmkiller50

Posts: 18
Joined: 4/7/2008
Status: offline

no use ford valve cover gaskets way better quality and they last alot longer than any other after market gasket. trust me they are worth the extra money. yeah use silicone instead of the end pieces

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RE: oil leak on my 5.0 - 5/17/2008 3:58:35 PM

joe_5.0

Posts: 68
Joined: 5/1/2008
From: oregon
Status: offline

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Post #: 13