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> Starter Motor no work, Starter Motor was working now not so much
densible1
post Oct 22 2025, 05:37 PM
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Just reinstalled my type 4 engine back into car everything wired up as before, upon initial start engine fired right up pretty effortlessly and continued to do so after several starts starter motor kicks in and , a HiTorque IMF, it actuates solenoid and motor spins right up. After bout 1/2 dozen starts the starter only activates the solenoid but no spin. I can hear the solenoid engaging. This is an old starter but haven't had problems before the engine re-install. I removed starter and bench tested with 12 volt leads and jumper cable on solenoid and it engages and spins readily. What's going on?
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burton73
post Oct 22 2025, 06:09 PM
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QUOTE(densible1 @ Oct 22 2025, 04:37 PM) *

Just reinstalled my type 4 engine back into car everything wired up as before, upon initial start engine fired right up pretty effortlessly and continued to do so after several starts starter motor kicks in and , a HiTorque IMF, it actuates solenoid and motor spins right up. After bout 1/2 dozen starts the starter only activates the solenoid but no spin. I can hear the solenoid engaging. This is an old starter but haven't had problems before the engine re-install. I removed starter and bench tested with 12 volt leads and jumper cable on solenoid and it engages and spins readily. What's going on?


Mark, You also told me that you let the started cool and that did not make any difference
Shout out to @bdstone914 what do you think?

Best Bob B

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densible1
post Oct 22 2025, 06:17 PM
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That’s right the starter never seemed to get hot at all
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Lockwodo
post Oct 22 2025, 06:20 PM
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Ground problem or defective battery cable? And of course make sure the battery is fully charged and passes a load test.
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densible1
post Oct 22 2025, 06:38 PM
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Battery putting out 14 volts. Will test in car like I did bench test see if it spins up
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emerygt350
post Oct 22 2025, 07:35 PM
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I would bet on a ground issue. Run an extra ground from the battery negative to the fan shroud. If that helps than you know what's up
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fixer34
post Oct 22 2025, 07:45 PM
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Chassis ground strap to transmission?
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densible1
post Oct 22 2025, 07:50 PM
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Yep
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bdstone914
post Oct 22 2025, 08:32 PM
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QUOTE(densible1 @ Oct 22 2025, 06:50 PM) *

Yep



Measure the resistance from the transmission case to battery ground. It should be very low. If it isxthe starter I have a should rebuilder neat me in Riverside
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densible1
post Oct 22 2025, 08:44 PM
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will test that in the morning. Think the starter actually is good , ran very nicely on the bench.
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porschetub
post Oct 22 2025, 10:14 PM
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QUOTE(densible1 @ Oct 23 2025, 02:44 PM) *

will test that in the morning. Think the starter actually is good , ran very nicely on the bench.

yes but a bench test is fine but there is no load on the starter, do your connections first and see what happens after a bad result go back to the starter ,cheers.
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Lockwodo
post Oct 23 2025, 07:40 AM
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QUOTE(densible1 @ Oct 22 2025, 05:38 PM) *

Battery putting out 14 volts. Will test in car like I did bench test see if it spins up

Voltage of fully charged battery measured at the posts (not the clamps) with engine not running should be ~12.7v. A lower voltage means the battery is partially discharged, for example, a reading of ~12.3v means the battery is 50% discharged.

Your reading of 14v would make sense with engine running and is what the alternator is putting out, not the battery. More here:

https://ratwell.com/technical/ChargingSystem.html
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Root_Werks
post Oct 23 2025, 12:29 PM
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Can you rotate the engine by hand?

And I second or third checking ground from trans to body and battery to body.
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