Thread: Too much crankcase pressure, novice engine builder

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A pressure gauge on the oil filler tube sounds like an interesting idea, definitely going to try to rig that up.

I wish this was just a case of me using crappy gaskets, but I've replaced my oil pan gasket, timing cover gasket, and the RVT below the intake now and it works great for anything 5000rpm and below, but as soon as I hit 6k+, oil manages to start seeping out somewhere.

Originally Posted by NegativeZero

A pressure gauge on the oil filler tube sounds like an interesting idea, definitely going to try to rig that up.

I wish this was just a case of me using crappy gaskets, but I've replaced my oil pan gasket, timing cover gasket, and the RVT below the intake now and it works great for anything 5000rpm and below, but as soon as I hit 6k+, oil manages to start seeping out somewhere.

Many moons ago, 1964 to be exact, my dad bought me a 57 Ford when I returned from Okinawa. At the time Ca. was just starting their smog BS and since it was a used car it had to be smog equipped. Everything seemed fine until one evening heading to Anaheim from Santa Fe Springs the crankcase pressure blew the dipstick out, put a dent in the hood, and covered the right side of the windshield in oil. It was some 2 quarts or so low, but after that the oil pressure went south as did the bearings.
Conclusion: Your money and your engine but I would heed the advice of others and tear it down and start over before it blows up in your face.

The only reason I am hesitant to do that is because I don't know what I would change. The rings are gapped where I want them to be. I don't have the money for new pistons and a larger bore. I feel tearing it down and rebuilding it wouldn't accomplish anything. This is why my original question is about additional things I can do to keep crankcase pressure down. I've been doing research extensively, and I've seen people mention such devices but I was hoping to hear from people with opinions on them.

I appreciate the advice, I really do, but I'm confident the engine was built correctly. I'm aware that my combination has additional blow-by from the extra ring gap, but in order to run boost, like I'm planning to, I was instructed by various sources to add that gap.