<VV> Maybe the starter.

[James Davis]

Hummm, maybe that is why the instructions for a compression gauge  and the
cylinder leak-down test gauge, the engine should be at operating
temperature for an accurate reading. 😉
Jim Davis

On Sat, Aug 8, 2020 at 9:47 AM Hugo Miller via VirtualVairs <
virtualvairs at corvair.org> wrote:

> Are you saying a hot engine is harder to crank than a cold one? Thats a
> novel concept. Unless it's on the point of seizing of course!
>
>
> On 2020-08-08 05:16, H Smith via VirtualVairs wrote:
> > I am surprised that more of you haven’t experienced the worn bushings
> > and dragging starter syndrome.  As stated by others the bushings wear
> > to one side due to the load of cranking against the starter/ring,
> > gear
> > the same direction all the time.  At this point I realize I am going
> > to run afoul with those that believe a cool engine cranks harder
> > than
> > a hot one.  In a hot engine the parts have grown to their maximum
> > dimension.  Pistons are bigger, rings have grown in length.
> > Everything in well lubed and oil has closed tolerances .  In the
> > starter the armature moves sideways into the worn area of the
> > bushings.  It starts to turn and runs into the marginally heavier
> > load
> > of the hot engine.  Due to the worn bushings it is running closer to
> > the field.  It starts drawing a ton of current from what is a
> > normally
> > well charged battery.  More magnetism than normal which snatches the
> > armature solid sideways against the field coil. It’s not going to
> > turn
> > till the key is released or the battery goes dead.
> > I request that if anybody wants to challenge this that they pull
> > their starter and look at the drag marks on the field cores and/or
> > armature cores where they have been rubbing together.
> > This is not to say that a bad solenoid ,corroded battery clamp, or
> > other connection can’t exhibit similar side effects   Smitty
> >
> > Sent from my iPad
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