Bernd D. Ratsch wrote:
> 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.
I would have that lifter noise first start of the day with the 3.9 in
Granpa - I just attributed it to the fact that the engine was a peice of
garbage, and was worn out. I've been using Napa gold filters for well
over a year now. Opinions of them? I used Mobile 1 filters for a short
while - when I realized they were more money and heard some talk on the
list about them not being all that great - I switched to the Napa Gold.
One of these days I'll get around to sending a sample of oil out to be
broken down. Maybe even cut into a few filters while I'm at it. First
things first - I need a running engine to try it on heh. (Granpa doesn't
run anymore - - again)
-- -------------------------------------------------------------------------------- Terrible Tom"It's a living thing... It breathes, it eats, ...and it hates..."
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This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:45:47 EST