<VV> Freeing a stuck motor.

[Lonny Clark]

The fitting on my compression tester is the same as my air tool fittings,
so yes that works to supply air to the combustion chamber. I wouldn't
expect that air pressure to move a stuck engine, but it might force ATF/oil
seep through the rings.

Also good method to hold valves in place when compressing a valve spring in
order to replace them (or valve stem seals) on V8 engines. Never used the
method on a Corvair personally.


Lonny Clark


On Tue, Jun 19, 2018 at 11:14 PM Jay Maechtlen via VirtualVairs <
virtualvairs at corvair.org> wrote:

> On 6/19/2018 10:54 PM, Ignacio Valdes via VirtualVairs wrote:
> > What fitting does one use to get the compressed air in?  I have a
> > plain compressed air dust blow gun with the rubber tip but I don't know
> if
> > that is long enough to reach through the top shroud. Is that sufficient
> or
> > is there a better way? Also I do not understand what " top of piston in
> > most likely  8-9 sq. in.”?" means?
> You could also pull carbs and exh manifolds, use air nozzle to blow
> oil/atf into those.
>
> To break it loose, a big screwdriver/prybar between flywheel/ring gear
> teeth and bellhousing/starter nose.
> That will bet you enough leverage to un-stick it.
> Then you rock it back and forth with ring gear then use the bolt on the
> harmonic.
> I say 'rock it' because that lets some of the crud that you're scraping
> off the cyl walls to get out of there and fresh oil to get it.
> But if it doesn't free up pretty quick after breaking it loose, then it
> needs to get torn down anyway.
>
> I wouldn't expect that air pressure on the piston would do the job of
> breaking it loose, but - eh,  you could try.
> The adapters they make for compression testers, maybe? Just a rubber tip
> thingie could work.
> I took an old spark plug once, broke the porcelain out of it, and welded
> some kind of fitting to it.
>
> > On Wed, Jun 20, 2018 at 12:04 AM, Matt <patiomatt at aol.com> wrote:
> >
> >> Let it soak for a few days…at least…
> >>
> >>
> >>
> >> Remove rockers…..  compressed air in plug holes… 120-150 psi… top of
> >> piston in most likely  8-9 sq. in.”?
> >>
> >>
> >>
> >> Matt Nall
> >> Sea Mtn., Or.
> >> Sent from WinMail10
> >>
> >>
> >>
> >> *From: *Ignacio Valdes via VirtualVairs <virtualvairs at corvair.org>
> >>
> >> Hi, I am giving the old college try for a 1964 stuck motor that was
> given
> >>
> >> to me for 'free'. It is out of the car on the floor. A 3/4 inch wrench
> on
> >>
> >> the harmonic balancer bolt head does not make it budge. The starter is
> bad.
> >>
> >> I pulled the plugs and poured a gallon of ATF into the spark plug holes
> >>
> >> today. How long should I wait and are there any other ways of trying to
> get
> >>
> >> it moving other than the bolt head on the harmonic balancer? -- IV
> >>
> >>
> >>
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> --
> Jay Maechtlen
>
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