Crankcase Ventilation

[Dave Gantz]

Originally Posted by Mark Yacavone

That would be 1962 Fed. and 1959 Ca. I believe

Yikes! I are getting to be an old fart. I remember seeing cars on lifts that while running, you could see the smoke billowing out of the tube. I guess '66 was wishful thinking.
It's ironic though, the stuff that's allowed these days, and you show up with a draft tube and yer out!

[eddie c]

Originally Posted by Dave Gantz

Yikes! I are getting to be an old fart. I remember seeing cars on lifts that while running, you could see the smoke billowing out of the tube. I guess '66 was wishful thinking.
It's ironic though, the stuff that's allowed these days, and you show up with a draft tube and yer out!

Me to, for every stroke you could see a little puff of smoke from the draft tube. ed

[Wade_Owens]

I have tried several theories at the track and confirmed some of them on the dyno. Brake booster valves are not created equal. There is dyno proven power here if you work for it. Mine will suck the bottom of the pan up against the pickup. You have to "release" the vacuum for the oil to drain. Then you'll know your close!

Wade

[Dwight Southerland]

Originally Posted by Wade_Owens

Brake booster valves are not created equal. There is dyno proven power here if you work for it.

Wade

As are PCV valves. . . . and you are very correct that you have to work for it.

[Frank Castros]

Wade,
Please expand on your comment of "releasing the vacuum for the oil to drain".

Originally Posted by Wade_Owens

I have tried several theories at the track and confirmed some of them on the dyno. Brake booster valves are not created equal. There is dyno proven power here if you work for it. Mine will suck the bottom of the pan up against the pickup. You have to "release" the vacuum for the oil to drain. Then you'll know your close!

Wade

[Wade_Owens]

Originally Posted by Frank Castros

Wade,
Please expand on your comment of "releasing the vacuum for the oil to drain".

Sure Frank, after the engine is warmed up, and I'm ready to change the oil, I have to "release" the vacuum that my system creates or the oil wont drain from the pain. The first time this happened, it scared the s&*^ out of me, I thought I had forgot to put enough or very much oil in it. After opening the filler spout, the oil drained freely as it had always done before.

Also, be very careful while playing with this, it does affect the oil pressure. If you use thin oil and low oil pressure, it messes with the bypass valve in the pump.

Wade

[Frank Castros]

Wade,
Thanks, that's a great story, and it seems that you have found the system that works for you.
This is a subject that merits serious consideration.

[Jeff Lee]

I've spent a lot of money on PCV valves; trying different applications that I wont go into detail on. But yes, some work, some work better than others..and some don't work.

[Pat Cook]

Originally Posted by Wade_Owens

Sure Frank, after the engine is warmed up, and I'm ready to change the oil, I have to "release" the vacuum that my system creates or the oil wont drain from the pain. The first time this happened, it scared the s&*^ out of me, I thought I had forgot to put enough or very much oil in it. After opening the filler spout, the oil drained freely as it had always done before.

Also, be very careful while playing with this, it does affect the oil pressure. If you use thin oil and low oil pressure, it messes with the bypass valve in the pump.

Wade

Wade have you ever connected a vacuum gauge to your crankcase?

not being a hydraulic engineer or anything like it, but don't pumps need a certain amount of atmosphere pressure to pump?

brake booster check valve and a sealed crankcase, sounds interesting. Use the manifold vacuum to pump the crankcase down.

[FED 387]

believe it or not if they are set up right ya can actually hear the air hissing a little(of course with the engine shut off) also pay close attn to any oil being sucked into the intake it will/could coat the top of the pistons and create detonation !!!