S2000 Under The Hood S2000 Technical and Mechanical discussions.

Resurfacing Flywheel?

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Old 02-24-2020, 09:31 AM
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Originally Posted by Chr1s7ian
I don't mean to dig up an old thread but is the final consensus that a good machine shop SHOULD be able to machine it correctly? I've searched for the last two days and have only seen those mentioning that they've heard something elsewhere. Does anyone have a link to the thread with the finer details? Obviously buying a new flywheel would be BEST but the same argument could be made for upgrading the exhaust side valve retainers.
If you have few or little hot spots you could probably just use sand paper and resurface it by hand or with an orbital sander tool. I've done it a few times with both flywheels and brake rotors and haven't had any issues.
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Old 02-26-2020, 08:11 PM
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Thanks for the responses guys (or girls)! I was wondering if the clutch replacement includes the pilot and clutch release bearing? I seen that Billman gave some praise to the ACT pressure plate + everything Honda OEM so I'm definitely going that route but I just seen that some people are recommending the release and pilot bearings while others are not.
Old 02-27-2020, 03:08 AM
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Definitely do both bearings. Where did you read to not do the bearings?
Old 02-27-2020, 03:17 AM
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Only reason you'd even consider re-using the release bearing is because you have to do the job again. If you are removing the flywheel you need a new pilot bearing every time.
Old 02-27-2020, 08:08 AM
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False economy not to replace these parts even if they have plenty of service life left.

A properly installed clutch driven without abusing it (deliberately or just with bad technique) can last over 100k miles in this car.

Imagine how much it would suck if you had to do a clutch job just for a pilot or release bearing (and disk and flywheel and pp surfaces are still fine) that you saved a few bucks not replacing last time.
Old 02-27-2020, 08:23 AM
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Billman just replied to me... I'm honored. People aren't necessarily not recommending it but I've watched a few DIYs and they show all the new parts but in a few of them I've seen no mention of a NEW clutch release bearing. Also sorry I had them in my head together, I know a pilot release bearing is 100% required but the clutch bearing was what I had in question. Now that I though, thank you guys again!
Old 02-27-2020, 09:35 AM
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My thought process is any time you are spending hours to tear something apart, you should consider replacing anything in that area that is a wear item and that is reasonable if mileage is up there. You have to balance the amount of work with the cost of course, but if you are already dropping the motor 3 inches, pulling the trans, etc replacing both bearings is pretty cheap vs having to pull it all again when they do fail, which they will.

Old 02-27-2020, 11:35 AM
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Originally Posted by Slowcrash_101
If you are removing the flywheel you need a new pilot bearing every time.
Why? I have removed and reinstalled flywheels without replacing their pilot bearings before and everything was fine.
Old 02-27-2020, 12:36 PM
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Because it's a cheap bearing to replace, it's also dealing with a lot of load as the transmission input shaft is riding on it. And if you're changing flywheel it's absolutely necessary because pressing it out and pressing it back in is not an option.
Old 02-28-2020, 12:54 PM
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Originally Posted by Slowcrash_101
Because it's a cheap bearing to replace, it's also dealing with a lot of load as the transmission input shaft is riding on it. And if you're changing flywheel it's absolutely necessary because pressing it out and pressing it back in is not an option.
Yea that's true, I read your previous post as 'if you remove your flywheel you need a new bearing (because the old one will be destroyed or something)'


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