<VV> Maybe the starter.

Hugo Miller hugo at aruncoaches.co.uk
Sat Aug 8 03:53:09 EDT 2020


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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