My 86 32v crankcase vent setup
02-04-2020, 08:00 PM
#61
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Location: Adelaide, South Australia
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I removed the supercharger in 2016 and sold it and the car after doing about 30k km as a forced induction engine.
The oil consumption was fine, never had to add oil between service. The inside of the plenems were clean enough to eat out of when the sc was removed.
The oil consumption was fine, never had to add oil between service. The inside of the plenems were clean enough to eat out of when the sc was removed.
02-04-2020, 11:57 PM
#62
Electron Wrangler
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I was excited when the ProVent came out and we tested it right away. It was a fail for us, the screen inside was too fine, and as the crankcase pressurized they would overflow. I also remember when the plastic cover for the Pro-Vent would get warm it was soft and the crankcase pressure would blow it off. There is a thread or two about mine and others experience with the ProVent.
I've looked at your diagrams and I cannot make out which way those "one-way valves" are pointed. I assume they are installed so that (hopefully) the oil separated by the Pro-Vent can only flow TO the oil pan, and oil from the pan cannot be pushed up. But what will happen is that the crankcase pressure will hold that valve shut, the oil from the separator will accumulate in the hose because it cannot drain, until it either burps out or into the intake.
Is that what you are having happen?
I've looked at your diagrams and I cannot make out which way those "one-way valves" are pointed. I assume they are installed so that (hopefully) the oil separated by the Pro-Vent can only flow TO the oil pan, and oil from the pan cannot be pushed up. But what will happen is that the crankcase pressure will hold that valve shut, the oil from the separator will accumulate in the hose because it cannot drain, until it either burps out or into the intake.
Is that what you are having happen?
Holy thread reincarnation! This is an old one...
You can now get a new coalescing screen medium for the Provent - A stainless mesh with very small holes. Indeed the problem with the stock screen is that they are more like a fabric filter and do load up with lots of oil quite quickly and become extremely restrictive.
Alan
02-05-2020, 03:55 PM
#64
Rennlist Member
It's been a while for me...
I was excited when the ProVent came out and we tested it right away. It was a fail for us, the screen inside was too fine, and as the crankcase pressurized they would overflow. I also remember when the plastic cover for the Pro-Vent would get warm it was soft and the crankcase pressure would blow it off. There is a thread or two about mine and others experience with the ProVent.
I've looked at your diagrams and I cannot make out which way those "one-way valves" are pointed. I assume they are installed so that (hopefully) the oil separated by the Pro-Vent can only flow TO the oil pan, and oil from the pan cannot be pushed up. But what will happen is that the crankcase pressure will hold that valve shut, the oil from the separator will accumulate in the hose because it cannot drain, until it either burps out or into the intake.
Is that what you are having happen?
I've looked at your diagrams and I cannot make out which way those "one-way valves" are pointed. I assume they are installed so that (hopefully) the oil separated by the Pro-Vent can only flow TO the oil pan, and oil from the pan cannot be pushed up. But what will happen is that the crankcase pressure will hold that valve shut, the oil from the separator will accumulate in the hose because it cannot drain, until it either burps out or into the intake.
Is that what you are having happen?
One of the interesting thing I did was adding vacuum to the Provent unit (see attached) and related Knock values.
