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Mopar Performance Valve Covers and PCV Adapter

Started by rebelyell, December 03, 2019, 06:57:47 AM

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rebelyell

It's definitely an old bottom end. I rebuilt the heads, and added a new cam and intake. Oil pressure is a steady 70psi at highway speed and 50 at idle.

I'm also not 100% certain there aren't other issues. Either or both breathers could be clogged. I find something else wrong with this car every time I look at it.

Shane Kelley

While a fresh top end on a older bottom end doesn't necessarily mean that's causing excessive crank case pressure. It has been known to happen. Start the car and let it run until it's at operating temperature and maybe even give it drive.  Pull the breathers and PCV out and see if any smoke is blowing out the holes. If it does that's a sign of weak rings not holding compression and causing pressure in the crankcase. Never going stop the oil leaks with that problem because the excessive pressure will keep pushing oil out the weakest point.  If you don't see that then you have a vent/seal issue. 

JS29



rebelyell

Thanks, Shane! I'll do that once I get the new carb on and running right.