Starter wont turn when engine is hot


Starter wont turn when engine is hot

Postby CBX-Six » Mon Jul 29, 2019 5:32 am

I have a problem with starting the engine when it is hot. The starter motor only turns 2-3 turns very slowly - like something is braking it and prevent it to spin freely. When engine is cold or cooled more down, the starter motor spins fine and start the engine right away. The power on the battery is in good condition. Any idea what prevents my starter motor to spin when engine is hot ?
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Re: Starter wont turn when engine is hot

Postby steve murdoch icoa #5322 » Mon Jul 29, 2019 6:25 am

Could be time for a starter motor rebuild.
viewtopic.php?f=21&t=8972&p=69691&hilit=starter+rebuild#p69691
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Re: Starter wont turn when engine is hot

Postby CBX-Six » Mon Jul 29, 2019 11:48 am

Could be, but I am interesting in knowing what prevents the starter from turning when my engine is hot.
Last edited by CBX-Six on Tue Jul 30, 2019 4:23 am, edited 1 time in total.
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Re: Starter wont turn when engine is hot

Postby steve murdoch icoa #5322 » Mon Jul 29, 2019 9:24 pm

How about things expand with heat and if it has never been cleaned/rebuilt there is 50 years of brush dust and dirt that MIGHT be clogging things up.
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Re: Starter wont turn when engine is hot

Postby CBX-Six » Tue Jul 30, 2019 3:58 am

That was also my first thought Steve, everything is cleaned and new brushes mounted. Still wont turn when engine is hot. I agree, that something could expand due to heat...
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Re: Starter wont turn when engine is hot

Postby Rick Pope » Sun Aug 04, 2019 9:07 am

Even though you think your battery is fine, try another. I had the same symptoms once, just before the battery died.
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