ORIGINAL: Sharpeye22
I am confused,
I thought it was leaking around the intake manifold where it enters the engine, I also thought it did not matter if it leaked around the backplate since that area was vented anyway.
The plastic back plates warp, get soft, and flex. They let the intake manifold move in and out of the head.
The intake manifold starts leaking where it goes into the head as the o-ring wears out.....