crankshaft seal oil leak
#1
Starting Member
Thread Starter
Join Date: Feb 2010
Posts: 124

I recently replaced my timing cover and harmonic balancer. During the installation process I did not use any grease or lube aside from RTV on the keyway. Now almost a week later I have an oil leak coming from the crankshaft seal. Forums that I have been reading recommend some kind of lube or sealant.
What am I supposed to do here? What materials should I apply? Should I replace the seal again?
What am I supposed to do here? What materials should I apply? Should I replace the seal again?
#2
BF Veteran
Join Date: May 2011
Location: SW Central OH
Posts: 2,253


Yep. Running a seal dry will pretty much ruin it. You could try putting lube on it but you'd still have to pull the pulley. And then no assurance it wont end up leaking just as much.
#3
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Join Date: Feb 2010
Posts: 124

So the best thing at this point would be to pull the pulley and the seal, replace the seal and use some lube.
Is there a specific kind I need to use? Anything else I should put on the seal or the balancer?
Is there a specific kind I need to use? Anything else I should put on the seal or the balancer?
#4
BF Veteran
Join Date: May 2011
Location: SW Central OH
Posts: 2,253


I always used just a little permatex sealer on the outer mating surfaces. Plastic..then rtv probably better.
On lips of seal and pulley area, just oil is fine.
Seems it would be a tough job getting seal out of cover, though.
On lips of seal and pulley area, just oil is fine.
Seems it would be a tough job getting seal out of cover, though.
#5
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Join Date: Feb 2010
Posts: 124

Is there anyway to save the current seal? Would using the permatex help or am I in for having to get a new one?
Edit: here in a few minutes I am going to try and upload a picture from my harmonic balancer where it meets the seal. I can see silver from the balancer but I'm not sure if I am supposed to.
Here is that picture.
Edit: here in a few minutes I am going to try and upload a picture from my harmonic balancer where it meets the seal. I can see silver from the balancer but I'm not sure if I am supposed to.
Here is that picture.
Last edited by Klturi421; 04-27-2012 at 11:47 AM.
#6
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Join Date: Aug 2011
Location: Atlanta, GA
Posts: 146

It's hard to tell what silver you're talking about, but I'd replace the seal for sure- it is less than $10 last time I checked... And if it's leaking now it is almost certainly leaking because it is damaged. Be careful removing and installing the seal bc the chain cover is plastic and replacing the cover is an even bigger job. Check the seal surface of the damper for damage before reinstalling.
#7
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Thread Starter
Join Date: Feb 2010
Posts: 124

Does the cover actually contain oil or is it just a dust cover?
#8
Starting Member
Join Date: Aug 2011
Location: Atlanta, GA
Posts: 146

Lol, well yes, it's supposed to contain oil.
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