Timer cover replacement- what's the trick?
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Cross-Country
Joined: Sep 2015
Posts: 51
Likes: 0
Timer cover replacement- what's the trick?
Hello-
I had to replace the timing chain on my 1977 F150 (351m). I had a biatch of a time getting the section of gasket to seat where the timing cover meets the oil pan. I (finally) got it all back together and now it's spraying oil from the crank seal, and probably that gasket as well.
Are there any tricks to getting that gasket replaced properly? Any tips on seating the crank seal? Hoping to get it right this time.
Thanks,
Will
I had to replace the timing chain on my 1977 F150 (351m). I had a biatch of a time getting the section of gasket to seat where the timing cover meets the oil pan. I (finally) got it all back together and now it's spraying oil from the crank seal, and probably that gasket as well.
Are there any tricks to getting that gasket replaced properly? Any tips on seating the crank seal? Hoping to get it right this time.
Thanks,
Will
Laughing Gas
Joined: Nov 2013
Posts: 1,207
Likes: 60
From: S.E. Louisiana;so far USA
Allow the crank seal to center itself before tightening the cover bolts. The area where it meets the oil pan is a place that's often hard to seal. You might have to use some goop in a tube.
Laughing Gas
Joined: Sep 2020
Posts: 874
Likes: 157
Keep some high tack silicone on hand for gluing gaskets in place.
I just did mine. I put alittle oil on crank seal and made sure seal lip was correct before snugging bolts
I've used dabs of grease to hold gaskets when I didnt have high tack silicone or any gasket maker on hand
I just did mine. I put alittle oil on crank seal and made sure seal lip was correct before snugging bolts
I've used dabs of grease to hold gaskets when I didnt have high tack silicone or any gasket maker on hand
Cargo Master
Joined: Oct 2016
Posts: 2,738
Likes: 217
From: Northern VA
Apply RTV as a very light smear to all surfaces, front and back, install harmonic balancer before you tighten down cover to center seal.
lube up seal and crank to prevent cuts.
make sure everything is clean enough to eat from.
Follow proper torque spec and sequence. Put sealer on bolts that enter water jacket.
Allow RTV to cure overnight.
finally use Permatex’s The Right Stuff
lube up seal and crank to prevent cuts.
make sure everything is clean enough to eat from.
Follow proper torque spec and sequence. Put sealer on bolts that enter water jacket.
Allow RTV to cure overnight.
finally use Permatex’s The Right Stuff
Tuned
Joined: Mar 2010
Posts: 387
Likes: 25
Agreed. People often try to do this on a 351M/400 without removing (or at least lowering) the oil pan.
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Post Fiend
Joined: Feb 2008
Posts: 5,831
Likes: 121
From: St Albert, Alberta
Yup you have to drop the pan on the 335 series engines to get clearance to install the timing cover, once that is done you align the cover with the damper.
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