Grant -
Sounds like possibly a improper honing for the rings used is preventing
the rings from seating. Iron rings or chrome will seat quickly but wear out
sooner, and require a relatively rough hone pattern. Moly rings need a finer
cross-hatch hone pattern and take longer to seat, but will wear much better
and create less ring drag.
This is all assuming that the correct size rings were used - i.e., the
rebuilder didn't put 1/16 rings in a 5/64 groove. It happens....
Jack / Winter Park FL
----- Original Message -----
From: <Passnb4U@aol.com>
To: <oletrucks@autox.team.net>
Sent: Monday, March 06, 2000 8:01 PM
Subject: Re: [oletrucks] Smokin 235
> In a message dated 3/6/00 4:44:17 PM Pacific Standard Time,
> dkrehbiel@kscable.com writes:
>
> > > > --- Grant Galbraith <trks@javanet.com> wrote:
> > > > > I have about 13 K on my 235 that was rebuilt with
> > > > > all new parts, bored
> > > > > with new pistons, cast rings and bearings as well as
> > > > > cam, cam gears,
> > > > > etc... I've noticed since I took it out of storage
> > > > > after a highway run
> > > > > it will smoke from the breather tube and vents in
> > > > > the valve cover so
> > > > > much so that smoke is billowing out from under the
> > > > > truck. I've always
> > > > > used 5-30 Mobil 1 synthetic and changed it again,
> > > > > the 5th oil change
> > > > > after noticing the smoke, still smoking. I know bad
> > > > > rings can cause
> > > > > blow-by but wouldn't expect it on such a recent
> > > > > rebuild. Any Ideas?
> > > > >
> > > > > Thanks, Grant
> > > > > 50 Chevy 3100
> > > > > 52 GMC 150
>
>
> Grant,
>
> I'd suggest a wet and dry compression test, then post the numbers.
>
> Mike
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
|