I found this post just recently... Well, I have the same problem.. The leak comes from the center of the balancer.. I have even sleeved my balancer just in case.... But it's the keyhole... How does one fix this?

quote Originally posted by Snapperhead: I found the crazy oil leak that has been giving me a hard time to find> Leaking right out of the keyway in the balancer.. I will fix it this week and hopefully stop the oil leak for good. This makes one heck of a mess. Vince

Link to the thread we can't see the pic

I can see the pic just fine.

Pull the balancer and apply a thin film of sealant to the bore as well as key way. Remove the key, apply some sealant to the key and key way, re-install the key, re-install the balancer, apply some sealant to the bolt, and torque properly.

[This message has been edited by fieroguru (edited 09-16-2014).]

Thanks guru.. Now that I have the engine back out it'll be easier to fix too

What guru said.

It's actually a standard assembly procedure for most GM engines. You're supposed to put sealant on the key and keyway to prevent leaking.

quote Originally posted by Fierobsessed: It's actually a standard assembly procedure for most GM engines. You're supposed to put sealant on the key and keyway to prevent leaking.

Yup. Experienced the same problem, and "proper assembly" is what fixed it.

------------------
Calgary time/temp

3.4L Supercharged 87 GT Click me
Super Duty 4 Indy #163 Click me