Re: Re: Belly Pan gasket and PING PING PING - Diagnosis

From: mrdancer (mrdancer2@home.your.underwear.com)
Date: Wed Jun 06 2001 - 23:48:34 EDT


And I posted it several years ago (and a coupla times since). Still thought
it was worth posting, since a few people hadn't seen it.

--
--
Richard A Pyburn <rap777@juno.com> wrote in message
news:20010606.154139.-247511.4.rap777@juno.com...
> Good info, but Bob Tom said this over a year ago.
>
> Richard in San Antonio
> On Tue, 5 Jun 2001 22:43:38 -0500 "mrdancer"
> <mrdancer2@home.your.underwear.com> writes:
> >
> >
> > --
> > --
> > "Suter, Rick" <RSuter@bizfon.com> wrote in message
> > news:E22DA6225145D51180E70090273FA83F01AC1F@PLATO...
> > >
> > > What is the diagnosis for the belly pan/PING issue on 5.2l
> > engines? (I
> > know
> > > I'll have to TELL the dealer how to do it!)
> >
> > SOURCE: MoPar Performance News, Tech Tips, by Larry Shepard - Mopar
> > Chief
> > Engineer
> >
> > The problem is related to the gasket that seals the cover to the
> > bottom of
> > the manifold on the Magnum engines. If this gasket does not seal
> > properly,
> > the engine can suck in oil vapors from the lifter valley and cause
> > the
> > engine to detonate due to the aggressive spark advance curve used in
> > the
> > Magnum computers. Remembering where this gasket is located, this is
> > not the
> > first thing that you want to do. It could be expensive and time
> > consuming
> > to pull off the intake to check. However, we have a helpful tip. To
> > determine if there is a proper seal, remove the PCV (Positive
> > Crankcase
> > Ventilation) valve from the right hand valve cover, but leave the
> > PCV valve
> > attached to the hose from the intake manifold. Remove the breather
> > hose
> > from the left-hand valve cover that goes to the air cleaner.
> > Plug-off the
> > connection at the valve cover. With the engine idling, place your
> > thumb
> > over the opening where the PCV valve was located. After 10-15
> > seconds you
> > should feel pressure, which indicates that the gasket is sealing. If
> > you
> > feel a vacuum, the gasket is leaking and needs to be repaired. The
> > best
> > repair is to remove the intake manifold, remove the bottom plate and
> > discard
> > the failed or leaking gasket. Clean all the surfaces thoroughly, and
> > apply
> > a bead of Mopar RTV sealant, PN 82300235 to the bottom of the
> > manifold.
> > Re-install the plate, let dry and then re-install the manifold.
> > Refer to
> > the service manual for manifold installation tips and details.
> >
> >
> >
> >
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