Well boss, the Aussie, threw in a factor I never thought of, the Pick-up, sucking air thru a crack or bad gasket or seal. HE ALSO GAVE ANOTHER VOTE TOWARD THE OIL PRESSURE RELIEF---They can get messed up, my Pap's Ford F-150s Got stuck CLOSED, We blew off 4 filters (leaving the screw-on part, on the engine) Then we figuered out what was going on!
I have thought about this, and talked to the local production engine rebuilder, he says it only takes 4 lbs of oil pressure to keep an engine safe, but he also said, he didn't want to experience it!
I have a '46 Willys (my avatar) It originally had a "Old Tractor" type filter on it, when I rebuilt him (a strong masculine pronoun) I changed to a remote, spin on filter. (The original was remote also, but it used the little "bucket handle" filters)
"Willy" does not filter oil, as it comes thru the pump (100% filtered oil) He sorta filters off of the oil galley (throwing #s, about 10% as the engine runs)
If I were to stick on a REGULAR filter, all of my Oil Pressure would dissapate thru the wide open filter.
1st Point--maybe a plug in/on a galley loose/fell out/crack in the galley
I have to run a PB 50 agriculture, spin on filter, to restrict oil flow thru the filter (when you, look in the threaded hole, there is a 1/16-1/8 inch hole, to slow the flow) Way, way back, some cars didn't even have filters, so robbing and filtering from the galley was a foward step up!
2nd point---Have you changed the filter--maybe it is stopped up or MFGed wrong
Your lifters operate off of a main galley, I do not know your engines OIL FLOW CHART, But a real good guess is your pressure gauge is taking its Sample---Way before it gets to the galley with the lifters.
3rd point----with nothing to lose, at this point, Loosen your filter slightly, wait for the ZERO reading----THEN spin her loose a little, see what kind of MASSIVE SQUIRTAGE Occurs----I always use my Brother-In-Law for these type "NELSOMATIC TESTS"
This may narrow it down to before or/ after the filter/ oil pump (or do 2 tests, 1 with pressure, 1without)
As for the water loss, I will ask, My friend ED, owner of the "Engine Exchange" again.
Monday, April 26th, 2010 AT 2:05 AM