Bernd,
I use the Mobil1 filter and don't think I've ever heard this noise... Is the
Mopar filter just as good as the Mobil1 or is it better?
-- -Josh 2000 Dakota CC 3.9L""Bernd D. Ratsch"" <bernd@texas.net> wrote in message news:003e01c2c863$eb744ba0$090aa8c0@homenet.com... > > Most of the 3.9/5.2/5.9L engines idle at about 15-20psi (oil pressure) > and run at 60-70psi at 3000+rpm. The bypass valve is there in case the > filter gets plugged...then it will open and bypass (no filtration). > > On using the Mopar filters (as Gary mentioned)...the Anti-Drainback > Valve is much better. Mopar uses a heavier duty valve (anti-drainback) > to prevent the annoying lifter-clack in the mornings (applies to > 3.0/3.3/3.9L and can apply to the 5.2/5.9L as well). FYI: Mopar filters > are built by WIX. > > - Bernd > > -----Original Message----- > From: owner-dakota-truck@bent.twistedbits.net > [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of > raymond.irons@gm.com > Sent: Thursday, January 30, 2003 6:56 AM > To: dakota-truck@dakota-truck.net > Subject: Re: DML: Magnum Engines Oil Filtration System WAS: Re: DML: > Trasko Oil Filter - 1/10th of Micron cleaning > > > I think the pressure the book is referring to is the pressure internal > to the oil filter. If the system pressure is 30 psi and the oil filter > becomes clogged, the oil pressure on the entire system will increase due > to a detected blockage. If the system senses an increase of 9-15 PSI at > the filter, the bypass valve opens and oil flow goes around the filter > thus assuring an adequate supply of oil to the engine. > > Anybody else have an idea if this is correct? > > Ray Irons > Dover, DE > > > >
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