can anyone elaborate on what chemical test for head gasket leaks is
discussed below?

EMZ <vw4x4@FYI.NET> wrote:
>
>     Find a new mechanic.  I have had the same problem. Took over
> a year to find the exact reason, (a vacuum hose off). In the mean time
> there is a chemical test you can use to tell if there is any leak
> from the head gaskets that would cause  over heating. For back
> pressure in the exhaust remove the O2 sensor and run the motor with
> a pressure gauge in place. The gauge should not read more then 3
LB.'s.
> Assuming the cooling system is working propperly a lean mixture in the
> fuel system could also cause overheating.
>
>             Eric                   86-VW4x4
>             vw4x4@fyi.net          72-240z
>             Pittsburgh, PA USA     1936-Chrysler
>
>
> On Sat, 1 Aug 1998, Curtis Gatlin wrote:
>
> > I have been overheating lately.  My mechanic says there is back
pressure in my
> > system.  I have an 86 synchro with 196K, no history known on
vehicle.  My
> > mechanic says I should replace the head(s), however there is no
guarantee the
> > bottom end will hold up, the charge for the heads plus install is
$1600 for
> > both sides, using new heads.  Complete rebuild using all new
German parts is
> > $3200.  Is this too much.
> >
> > Curtis
> >
>

==
Mike Harrnacker
89 Vanagon GL Weekender
91 Golf
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