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Old Jul 7, 2019 | 08:28 AM
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The starter has been making a grinding sound when it starts the engine of my '74. I've cleaned all the terminals on the battery and the starter motor. Bought a new solenoid due the bakelite top cracking and it was only a little more expensive to buy the whole solenoid than to just buy the bakelite top. Anyway saw the post by patg86 'Do I have a bad stater solenoid?' This is exactly the noise my vet makes. sstocker31 replied with a video about shimming the starter. Had a look at the clearance and it was more than 1/8 inch. Took shims out and got it back to 1/8 inch. Now there is no grinding, but the starter won't stop turning the engine over even with the key turned off. Have to disconnect the battery to stop it. If I take the 'S' wire off the starter and turn the key I get 12.5v and it returns to 0 with in second of turning the key off. I presume its binding some how and is 1/8 inch to close?
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Old Jul 7, 2019 | 08:38 AM
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now you probably need an entire solenoid (or spring).

ensure the starter drive (aka bendix) slides freely on shaft & spring returns it.
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Old Jul 7, 2019 | 09:42 AM
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It works fine on the bench and returns normally, just not in the car
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Old Jul 7, 2019 | 10:03 AM
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It sounds like your starter needs shimmed.
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Old Jul 7, 2019 | 10:39 AM
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Are ALL teeth on both bendix and flexplate/flywheel in good condition?
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Old Jul 8, 2019 | 08:21 AM
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Teeth all there and in reasonable condition on the bendix and the flexplate. Is the 1/8 inch space between the flexplate and the bendix shaft the right distance or should it be larger

Last edited by talc; Jul 8, 2019 at 08:24 AM.
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Old Jul 9, 2019 | 05:08 PM
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This may help.https://static.summitracing.com/glob...sum-829105.pdf
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