Assuming that I left my car sitting with old gas in the tank, what exactly
can I expect to be gummed up?
I know to drain and replace the gas, but if the car has just been sitting,
the valves shouldn't be a problem. Is this correct? or will my flawes logic
lead to more, as in again :(, expensive repairs?
Rob
>From: "Dick Benjamin" <dickb@xxxxxxxxx>
>Reply-To: mailing-list@xxxxxxxxxxxxxxxx
>To: <mailing-list@xxxxxxxxxxxxxxxx>
>Subject: Re: IML: sticky valves
>Date: Fri, 28 Mar 2003 08:53:21 -0800
>
>I too have seen this problem, but only on cars whose owners usually started
>the engine for just a few minutes every week or so, thinking they were
>doing
>the engine a favor. Flatheads seem to be prone to this problem,
>especially
>when recently rebuilt with nice tight valve guides.
>
>As someone else has already pointed out, when you start an engine, run it
>until it is thoroughly warm, and preferably drive the car about 10 miles,
>to
>exercise all the other moving parts and evaporate all water vapor and other
>light combustion vapors. This should keep deposits from forming on the
>valve stems. Of course, the more tightly fitted the valves to the guides,
>the more likely this problem.
>
>Our modern fuels do not last through storage as well as the gas sold years
>ago. I advise adding a fuel preservative if a car is going to be stored
>for more than a couple of months. Otherwise, you may have gum formation
>anywhere the fuel can sit or get deposited, and that stuff is really tough
>to remove - been there, done that!
>
>Dick Benjamin
>----- Original Message -----
>From: <mopar48291@xxxxxxx>
>To: <mailing-list@xxxxxxxxxxxxxxxx>
>Sent: Thursday, March 27, 2003 10:00 PM
>Subject: IML: sticky valves
>
>
> > Those of us who live in metropolitan areas in hot climes most assuredly
>have to
> > deal with stuck valves and bent pushrods. The oxygenated gas we are
>forced to
> > use has water as a major component of the ethanol or methanol blend.
>That
> > blend can turn to varnish in just a few months and thus deposit itself
>on
>the
> > valve stems thereby "gumming up" the works. If you don't believe me,
>I've
>got
> > a bunch of twisted valve stems I can show you.
> >
> > I've taken to making a "cocktail" of about 50/50 Marvel Mystery Oil and
>B-12
> > Chemtool to pour into the carb before I try to start a car that's been
>sitting
> > for a while. The nice thing about the Carter carbs is the bowl vent
>that
> > allows me to fill the bowl before I start the engine.
> >
> > Peace,
> > Roger
> > in the Valley of the Sun (Phoenix)
> >
> >
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