'94 351W Timing Cover Oil Seal
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Senior User
Joined: Jan 2004
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From: Newtown, CT
'94 351W Timing Cover Oil Seal
Does this seal go in from the front or the back (internally)? Mine has started leaking and I want to know whether this will be a 30 minute job or an afternooon - thanks
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
It goes in through the front, you have to pull the balancer of course but that's pretty easy with a puller. Getting the old seal out of the cover is another story, I have never done this on a motor since it usually requires some brute force to press it out from the back side with the cover removed from the motor.
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Joined: Jan 2004
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From: Newtown, CT
Thanks for the quick response, this is a seal I put in a few weeks ago that is leaking again. Truck has maybe 500 miles on it since I put it in, so it's not really had a chance "bond" in there. Should pop out easily with a seal puller.
I had put a sleeve on the balancer to deal with the groove (155k miles) but must have either a bad seal originally or maybe even put it in wrong. Who knows - I am just glad I don't need to pull the timing cover off again.
I had put a sleeve on the balancer to deal with the groove (155k miles) but must have either a bad seal originally or maybe even put it in wrong. Who knows - I am just glad I don't need to pull the timing cover off again.
Cargo Master
Joined: May 2007
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From: British Columbia
Leaky seal
Did you reinstall the oil slinger that fits inside the timing cover? It stops the majority of the oil getting to the seal. Also make sure your sleeve is sealed to the damper.
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Joined: Jan 2004
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From: Newtown, CT
I had put a new timing chain on when in there so I am confident that whatever came off, went back on - there were no mysterious spare parts left over. However, I do not remember whether the sleeve was sealed on the balancer - it was a late cold night when I did it. That would be a "Homer" moment for sure if that was the root cause!
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Phillip Guidry
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