Can't resurface the Flywheel ? Why not ?

[viperrt96]

Can\'t resurface the Flywheel ? Why not ?

I replaced my clutch (it didn't really need it- 33k) while I had my motor apart this winter. I resurfaced my stock Flywheel while I was at it. I know I didn't take more than .010" off of it. I only did it to clean up the surface. It still has the machined chamfer on all of the edges(outside-inside). It seems to work fine.

I just read in my service manual that you should not resurface the flywheel. It states that you should only lightly sand it and it(flywheel) must be replaced upon the need to do so.

Anybody know why?

 

[gthomas]

Re: Can\'t resurface the Flywheel ? Why not ?

I don't know why it would say that. click

 

[Johann]

Re: Can\'t resurface the Flywheel ? Why not ?

I asked this question before and never got a definitive answer.

Someone suggested that the disc surface is not intended to be perfectly flat but I can't imagine why.

 

[gthomas]

Re: Can\'t resurface the Flywheel ? Why not ?

I asked this question before and never got a definitive answer.

Someone suggested that the disc surface is not intended to be perfectly flat but I can't imagine why.

+1
If it's not flat, you lose the effectiveness of the clutch's clamping force.

 

[viperrt96]

Re: Can\'t resurface the Flywheel ? Why not ?

I can't imagine why either. The motor is externally balanced so maybe the concern is that. I don't know.

Has anyone else resurfaced theirs?

 

[VIPR GTS]

Re: Can\'t resurface the Flywheel ? Why not ?

How about Chrysler makes more money selling you a new one.

 

[joe117]

Re: Can\'t resurface the Flywheel ? Why not ?

They are probably worried that you will take too much off and weaken it.

 

[V10SpeedLuvr]

Re: Can\'t resurface the Flywheel ? Why not ?

When I bought my 96' RT/10, the owner gave me all the paperwork he had on it. In the stack was a invoice from 2Fast Vipers located in NC where they replaced the clutch and resurfaced the flywheel. Going by the name of the shop, I'd assume they know how to work on Vipers, and if they resurfaced the flywheel, I cant see there being a problem with that. I've put about 1500 miles on the car since I bought it and have had no problems with the clutch or flywheel <knock on wood> so I dont see a problem with resurfacing one as long as you know what you are doing.

 

[Cudaman]

Re: Can\'t resurface the Flywheel ? Why not ?

If it is done correctly (a very lite resurfacing)....it can only be done one time, when it MUST be replaced.


Cudaman

 

[Marc Lublin]

Re: Can\'t resurface the Flywheel ? Why not ?

Did it on my 94 with no problems.

 

[Viper Wizard]

Re: Can\'t resurface the Flywheel ? Why not ?

If it is done correctly (a very lite resurfacing)....it can only be done one time, when it MUST be replaced.


Cudaman

Correct, because there are NO adjustments with a hydraulic clutch system! The Slave Cylinder & Throw out bearing only moves X amount. The more you take off the flywheel, you'll end up with a clutch that WONT disengage and you wont know it until you put it all back together and try it!

 

[2001 GTS]

Re: Can\'t resurface the Flywheel ? Why not ?

Had mine resurfaced...works great so far

 

[joe117]

Re: Can\'t resurface the Flywheel ? Why not ?

Chuck,
Couldn't a shim be fitted behind the bearing to make up the small amount taken off the wheel?

 

[viperrt96]

Re: Can\'t resurface the Flywheel ? Why not ?

Another funny thing about replacing the clutch was when I replaced the throwout bearing. The clutch kit I bought was a factory LUK replacement. It came with plate,disc,and throwout bearing only. The manual stated the throwout bearing was part of the hydraulic clutch assy and it is not a serviceable unit. What ? It was easy to figure out how to remove the bearing and spring. I then had to sand the shaft a little in order for the new bearing to slide smooth and freely. It's Funny how the factory manual will state what is serviceable and what is not. Mostly not !

 

[Ratech]

Re: Can\'t resurface the Flywheel ? Why not ?

The flywheel is shimmed to compensate for the amount removed by resurfacing. I am not aware of a vendor that supplies them for Vipers. A Viper racer like Roe probably knows where to get them.

 

[jp]

Re: Can\'t resurface the Flywheel ? Why not ?

You can shim the TOB, no problemo. You can resurface the flywheel, no problemo.

 

[Viper Wizard]

Re: Can\'t resurface the Flywheel ? Why not ?

The flywheel is shimmed to compensate for the amount removed by resurfacing. I am not aware of a vendor that supplies them for Vipers. A Viper racer like Roe probably knows where to get them.

I not sure about shimming the flywheel back? I would rather shim the slave cyl/T-O bearing assemble forward? There are limits to everything. "Just my 2 cents"

 

[joe117]

Re: Can\'t resurface the Flywheel ? Why not ?

Well, yeah.
I was saying shim the bearing, not the flywheel.

 

[Jack B]

Re: Can\'t resurface the Flywheel ? Why not ?

See the Wizards comment, add that to the fact that you are working with approx .030 of travel and you can see the problem. This is the same issue if you slip the clutch too much, the heat expands the disc, therefore, making shifting difficult or impossible. That is why the problem does not show up till you put on the slicks.