Join Date: Jan 2000
Location: Houston, TX USA
I also vented my engine at the fuel pump block off plate years ago and have never had a problem!
Freddie, I don't know what the condition of your engine is, but to lose that much oil, you must have some serious blow-by happening, or there is something else going on..
My car has a elbow welded to the block off plate and a small breather attached directly to the other end with a piece of rubber hose-and I don't get any oil on the block or anywhere else!
Sorry to hear about the mess. Seriously though, I would be looking further into why there is so much pressure in your crankcase. Was that point the ONLY location that the block is vented? I have breathers at the valve covers, and at the block off plate and perhaps this has something to do with it? Perhaps if that was the only location that the pressure could go, it would take a lot of oil with it..
Things that immediately come to mind
1.Too much windage in the crank case. Oil being whipped up into the air stream and then being exhausted with the air.
2. Oil level too high.
3. Too much blow-by.
4. Not enough venting for the crank case.
Try putting your hand over the pipe/hose where you had a breather attached with the engine running and see if you have any pressure blowing/pushing on your hand.
Please let us know how this turns out.
1969 383CI, T-56, 12 bolt-3.31 posi, 13" C5 Rotors, PBR Calipers, rear disc system..