C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Resurface the flywheel?

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Old Aug 13, 2002 | 01:23 PM
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Default Resurface the flywheel?

I had my clutch changed about a year ago and looking over the receipt is has the flywheel listed as resurfaced. Now I was reading another thread and saw that the flywheel isn't supposed to be resurfaced. Why is this the case? Should I go back to the shop and get this corrected? If I do I would like to have a good understanding of what I am talking about. I have noticed that when taking off in 1st at low rpms I am getting a slight vibration/chugging sensation. I don't get it if I take off at higher rpms. Could this be related? I think it could be a slight misfire around idle but I'm not sure. Need advice.
:cheers:
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Old Aug 13, 2002 | 01:25 PM
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Default Re: Resurface the flywheel? (Kdrhpe)

I always forget to mention it is a 95 LT1 :D
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Old Aug 13, 2002 | 01:54 PM
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Default Re: Resurface the flywheel? (Kdrhpe)

Personally I don't see any reason why the flywheel shouldn't be resurfaced. I've had it done twice so far and had no problems. All they're doing is removing the glazed and grooved surface so the clutch can get a better grip. As for "not resurfacing" it I too heard the same, but it can get very costly replacing it each time . Just my two cents worth.
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Old Aug 13, 2002 | 02:44 PM
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Default Re: Resurface the flywheel? (87Beast)


Personally I don't see any reason why the flywheel shouldn't be resurfaced. I've had it done twice so far and had no problems. All they're doing is removing the glazed and grooved surface so the clutch can get a better grip. As for "not resurfacing" it I too heard the same, but it can get very costly replacing it each time . Just my two cents worth.
The 6-speeds use a dual-mass flywheel that isn't supposed to be resurfacable. The reasoning is along the lines that the cutting oil that they use to surfact it will destroy the material that connects the two flywheel components together.

I just did my clutch and didn't really touch the flywheel. All I did do is take a sanding disk in the cordless drill and slightly go over the surface to hopefully break any surface glazing. So far so good...

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Old Aug 13, 2002 | 02:58 PM
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Default Re: Resurface the flywheel? (Kdrhpe)

I just had my clutch replaced and they resurfaced the flywheel at the same time. This was only about a month ago and everything seems fine so far.

I have not taken it to the track yet.

If they can't resurface it that means each time you blow the clutch its a $2,000 repair? That would certainly mean no more racing. :eek:

I wouldn't like that.
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Old Aug 13, 2002 | 07:28 PM
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Default Re: Resurface the flywheel? (rcolling)

If they can't resurface it that means each time you blow the clutch its a $2,000 repair? That would certainly mean no more racing. :eek:

I wouldn't like that.
...which is why a lot of folks convert to a single-mass disk from the F-body.
http://www.carolinaclutch.com - give them a call - they seem to know what they're talking about both for stock replacement, and the conversion.
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Old Aug 13, 2002 | 08:48 PM
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Key is to drive in such a way that you don't need to resurface the flywheel(I know impossible, but it is an alternative).

I've always heard not to resurface because there isn't enough meat to cut.
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Old Aug 13, 2002 | 09:28 PM
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Default Re: Resurface the flywheel? (TravisD)

In 1997, before this forum, I had my dualmass resurfaced, it destroyed it when I fired up my brand new engine. I had no idea that the parts even moved... It was really stiff. After it broke the center seal on start up, which sprayed nasty gook all over my bell housing, the 2 masses were really loose.

I would take a power hand sander to it if you are going to do anything.

I heard stories how the porsche people can do it (I asume porsches have dual masses?) as it needs some cooling fluid sprayed on it as it is being cut... but after killing mine, I would not touch it.

I picked up a new take off dual mass for 250 bucks back then. I also had a single mass balanced to my motor. when the dual mass dies, the single goes in.
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