New Rear Main Seal Leaking

[gnx547]

I was about to put on the flywheel and I notice the rear main seal has a small leak in the bottom. The rear main seal is new with zero miles and the engine is new and never been started yet. I don't understand why it is slightly leaking? Any ideas?

 

[madspeed]

mine does the same...

 

[mikestang63]

could have been overtightened and warped, installed dry, could be a nick in the seal or in the cap from improper removal/install. Personally I install the teflon sleeve and FelPro rear main seal and have never had a leak.

Here's a good video of installing the seal properly with the teflon sleeve.

 

[Mustang5L5]

Never been run? It could be just residual seepage from the install. I'm not sure if that would suggest to me a leak.

When I did my rear main seal, it leaked for about 500 miles after the install. After that, it just stopped. I've done several oil changes since...def a full 5 quarts in there


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