Reply To: FD-15 Question

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September 24, 2019 at 9:02 pm #184000
frankr
Participant

    Look closely in that groove. I think you will find a tiny hole that leads back down to the intake manifold. Manifold vacuum sucks back to the manifold any oil that might seep past the bearing shell. So an o-ring is not needed or used. Yeah, I know, lots of guys look at that groove and can’t stand it and slap an o-ring in it.