New motor blowing oil on headers

cody72dart said

Thanks TB, sounds like I have some work ahead of me. I'm going to post some pictures when I get home today of the distance in between my balancer and my timing chain cover. Mayber that can help determine how far my balancer is pressed on. As far as the oil slinger, I've heard many mixes opinions on them. Is this a necessary part?
Are any of you running an ARP balancer bolt with an ATI damper? I will definitely be putting a PCV system on it aswell as this seems to be prettt consistent

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The slinger isn't really a big deal, but the problem is that you have 4-5 things that could add up to that leak.
1. Higher pressures in the crankcase from no PCV (forced evacuation via a PCV is always best because it actually causes a vacuum inside the motor keeping seeps to a minimum)
2. Damper may not be all the way back against it's shoulder where it bottoms out on the cam gear, and also casing the cam gear to not be seated to the crank. (another place for more oil to get through)
3. No slinger to keep extra oil away from the seal.
4. Probably no sealer between the balancer and the crank, and no seal washer under the bolt.

Pretty much any ONE of the above can allow a leak at the damper, so if you have 4 reasons the leak doesn't surprise me one bit.

The cam gear, damper and crank are normally pressed tight together limiting oil seepage between them.
They do still seep between the crank snout and damper (usually comes down through the damper keyway) and this is why they use sealer between the two pieces and especially at the keyway.