93M6Formula

Okay so I pulled my flywheel off to get resurfaced and I found 4 hairline heat cracks around the inside of the clutch disc surface. They are about 3/4" long at the most.

Well i took it to my machine shop to get it fixed and I figured they would just weld the cracks and then resurface it afterwards. Well he tells me he can't do that and can only grind it down till they disappear. Now I don't really like the sound of that personally. What kind of problems will this cause if too much is taken off? I probably should of just bought a new one.

What do you guys think?

96lt1m6

iTrader: (31)

Getting a flywheel resurfaced removes material.. Not a real big deal depending on how much has to be removed.
Depending on how.much needs.to be removed you may prefer to purchase a new flywheel.

93M6Formula

I realize material gets removed but how much is too much? Does the clutch engage any differently?

SS RRR

iTrader: (2)

There should be a tolerance guide out there somewhere as to what thickness is still in spec. If I remember tonight I can look through my GM Manuals to see if there is any useful info...

93M6Formula

I suppose I could do that too, i have a 93 firebird specific manual.

jlpz

iTrader: (8)

If you guys could post the tolerence/thickness spec on the flywheel, it would be great information to have..

gregrob

iTrader: (8)

I wouldn't take very much... you can run into engagement issues.

jflores.281

I would buy a new flywheel. Or Buy a resurfaced flywheel from a local auto parts. Welding is not a good idea. You could have balance issues or worst have to take everything of again.

93M6Formula

I'll look in my book when i get home.

93M6Formula

Kinda what I was thinking.

BALLSS

you can get a remanufactured FW (which is already "resurfaced") for around $40 after core. $ may have gone up but I got one at O'Rielys. FW was $140- $100 for my core. This is for a stock external balance cast FW

if FW has cracks, get a new one.

Mississippi

Personally I would just get a new flywheel. They come pre-balanced at all the major parts stores and only cost about 100 bucks. A resurface job around here cost like 70 bucks so I just spend the extra 30 for a brand new one.