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1971 C3 starter/flywheel fun

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Old Sep 26, 2023 | 05:46 PM
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Default 1971 C3 starter/flywheel fun

Hi. Excited to be a part of this community now

Just bought a 71 C3 that had an off frame restore with 383 stroker and 5 speed tremec with most everything new, rebuilt, or replaced.

Unfortunately I need help already and can't even drive it yet. The prior owner threw in a napa 2461091 reman ac delco high torque starter last week to get it ready to sell. The issue is that it pulls away from flywheel/mount when torquing mounting bolts or after a few starts. If I am lucky enough to get it to mount 'right' it works perfectly until it moves and yes, I torqued to spec and tried with/without shims. I think the flywheel seems ok yet but don't want to keep grinding away.

Can someone please confirm the flywheel is still okay and recommend a good starter. Or is maybe this one just defective. I've seen some high torque ones but they seem to have a square mount without a cap. Not sure how that is supposed to work

Thanks!







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Old Sep 26, 2023 | 06:07 PM
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Welcome to the forum.

Go here and the C3 Tech folks will be glad to help you:

https://www.corvetteforum.com/forums...performance-3/
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Old Sep 26, 2023 | 06:14 PM
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Sorry - how do I delete this one?
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Old Sep 26, 2023 | 06:27 PM
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Only a moderator or administrator can delete a post that starts a thread. Wait and they will move this thread to the C3 Tech forum for you.
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Old Sep 26, 2023 | 06:29 PM
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Moved to C3 Tech for assistance.
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Old Sep 26, 2023 | 06:51 PM
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Flywheel looks . . . . . . . .just ok.

But that Bendix is shot. Looks like it was only engaging part way and bent some teeth. This could have happened when someone accidently cranks on the IGN key while its running. Makes an awful noise and can damage the goods.

Are the blocks threaded holes stripped? Are you using knurled bolts and are they the proper length? Somethings not right here.
Wrong starter, wrong mount. How many teeth does the flywheel have? The starter has to match. I believe its either 153 T or 168 T.

If you want to keep the old starter, you can remove the solenoid and nose cone to replace the bendix. Install a brown ceramic heavy duty solenoid.
I sure wouldn't buy a $200 starter until this issue is resolved.
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Old Sep 26, 2023 | 08:31 PM
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welcome
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Old Sep 26, 2023 | 08:41 PM
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Congrats on your Vette. That ring gear is done. Ring gears can be replace separate of the flywheel although I've never seen one done. As far as the starter goes, get a PMGR type starter and chuck that NAPA starter. The nose of that starter looks a bit odd for your application.
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Old Sep 27, 2023 | 08:32 AM
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klodholz,

You took excellent photos, so the quality of sharpness is at the mercy of our lap-top screens.
In one photo the flywheel teeth look compromised. In another photo the teeth don't look . . . . . . . . .too bad.

However, in one photo it almost looks like the clutch plate is over-lapping the flywheel teeth. If that is what's going on, that certainly would explain why the Bendix looks like it needs to go to the dentist.

I guess your only option now is to pull the tranny for a better visual about the clutch.
Count teeth, check starters compatibility with that ring gear count, check throw-out bearing, etc.

There are two different flywheels, two different starters to match.
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Old Sep 27, 2023 | 10:06 AM
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The ring gear is bad but you may get away with it for a while......does your current starter use knurled shoulder bolts? This is important....and probably why yours is moving.
When you replace all of this....I recommend the CVR 5323 Starter.....it will be the last one you ever buy.

Jebby
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Old Sep 27, 2023 | 11:39 AM
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Originally Posted by HeadsU.P.
However, in one photo it almost looks like the clutch plate is over-lapping the flywheel teeth. If that is what's going on, that certainly would explain why the Bendix looks like it needs to go to the dentist.
Sharp eye!
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Old Sep 27, 2023 | 04:04 PM
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This forum doesn't disappoint. This is great feedback. Seems like what I thought, flywheel (ring gear) is questionable and starter is a POS. I'm leaning towards a whole new flywheel since they really aren't that expensive and same amount of work and the CVR 5323 starter. Luckily a buddy has a lift and trans stand

Just have to figure out what flywheel...
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Old Sep 27, 2023 | 04:06 PM
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Thanks Jebby - just ordered the starter. Now hunting for the flywheel
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