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Starter or flywheel issues?

Old Sep 26, 2017 | 09:11 AM
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Default Starter or flywheel issues?

Recently my starter has begun making the most awful grinding noise. Its totally random, but happening more frequently. As I turn the starter over, it begins to crank, everything is normal. Then, as everything comes up to speed and the engine seems to catch I get the most horrid grinding. I don't know if the starter gear is failing to pull back completely or if my flywheel is chewed up. I'm praying its not the flywheel. (The starter IS in there nice and tight and I paid attention to alignment, didn't need any shims) Anybody had similar experiences?

Starter is a aftermarket high torque, engine is a moderate compression 454, timing is about 34 degrees.
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Old Sep 26, 2017 | 10:32 AM
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Originally Posted by Scottd
Recently my starter has begun making the most awful grinding noise. Its totally random, but happening more frequently. As I turn the starter over, it begins to crank, everything is normal. Then, as everything comes up to speed and the engine seems to catch I get the most horrid grinding. I don't know if the starter gear is failing to pull back completely or if my flywheel is chewed up. I'm praying its not the flywheel. (The starter IS in there nice and tight and I paid attention to alignment, didn't need any shims) Anybody had similar experiences?

Starter is a aftermarket high torque, engine is a moderate compression 454, timing is about 34 degrees.

If you have removed the dust cover it will make a LOT of noise; especially as it releases from the flywheel teeth. The so-called "dust" cover serves three purposes; one to shield the flywheel from dust, one to muffle sound, and one to keep the technicians fingers or hair from being chewed up by the spinning flywheel teeth.
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Old Sep 26, 2017 | 10:40 AM
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The dust cover is in place. This isn't just a noisy starter, its a violent, metal on metal grinding. Almost like when you forget your car is running and try to start It again....(I mean, Ive never done that before....)

I dread getting underneath this car to inspect ....its always worst case scenario.
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Old Sep 26, 2017 | 12:27 PM
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Almost sounds like the starter isn't pulling back fast enough when the car starts. It's a hassle, but you'll have to pull the starter to look for the issue either way. I would begin by dropping the starter and looking at the drive teeth. Maybe the spring has weakened? Possibly contact the mfr and ask if they can help trouble-shoot or if they offer replacement springs, etc. Is the high-torque starter old - been in awhile?
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Old Sep 26, 2017 | 12:56 PM
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Sounds like a failing bendix. Cheap and pretty easy to replace.
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Old Sep 26, 2017 | 01:08 PM
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Originally Posted by JoeMinnesota
Almost sounds like the starter isn't pulling back fast enough when the car starts. It's a hassle, but you'll have to pull the starter to look for the issue either way. I would begin by dropping the starter and looking at the drive teeth. Maybe the spring has weakened? Possibly contact the mfr and ask if they can help trouble-shoot or if they offer replacement springs, etc. Is the high-torque starter old - been in awhile?
Ive got a big block and headers, so actually getting the starter in and out is actually very simple. Its the time consuming process of jacking the car up and getting it on jack stands I hate so much.

The starter isn't but a few years old, but I don't remember where I bought it and I'm sure there is no warranty.

I'm glad to hear everyone thinks its a starter issue and not a flywheel. I don't want to pull my transmission out. Again.
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Old Sep 26, 2017 | 04:49 PM
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Pull the dust cover and inspect the flywheel.
If all the teeth are good check out the starter.
On an original starter you can disconnect the large battery wire and apply 12 volts to the small inside terminal to see if the Bendix goes in and out smoothly.
Not sure if that will work with the starter that you have.
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Old Sep 26, 2017 | 05:34 PM
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I'd at least inspect your ring gear because if the starter gear and ring gear are coming together at idle speed they both may be damaged. Might as well do it "while your in there".
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