F-150 Leaking valve cover?

Old 02-02-03, 10:26 AM
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Question F-150 Leaking valve cover?

I own a 1991 Ford F-150 with the 5.0L motor.It has 177,000 miles on it,but has been taken good care of.
A few years ago,the passenger side valve cover gasket was leaking oil,so I spent the money and had to fixed.It was an expensive job,as alot of stuff needs to be removed to do it,the plenum chamber,throttle body,etc...
a few years later and its leaking again,I can smell oil on the hot motor,and see oil around the cover.
With this many miles on the engine I really don't want to spend that kind of money on it again.
So i went out and tightened up the valve cover bolts a little,but I can't get to the ones towards the inner side?How can I get to those?Is there a trick?Any suggestions.The plenum is in the way....Thanks
Old 02-02-03, 12:48 PM
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No tricks that i can think of on this one.If you do the job again i'd suggest getting a Felpro high grade gasket.You might also check your pcv valve,which if stuck will cause excessive crankcase pressures which will make gaskets leak.
Old 02-02-03, 04:11 PM
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Agree with Fordtech.

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