1980 SC Flywheel resurface $$

[Brad w]

Called Napa to have the flywheel resurfaced and was told $60 because there are two surfaces to machine down. Is this true and is $60 a fair price?

[VaSteve]

I paid $60, but IIRC it was only 1 surface. I think that's the going rate.

[911Freak]

There are 2 surfaces on the flywheel that are important:
1. the surface/face that comes in contact with the clutch disc
2 the outer surface where the starter ring is bolted to.

It is common for the face to be "resurfaced" or machined, and most good shops will check the outer surface to ensure the starter ring gear mates to the flywheel smoothly.

In some cases this requires machining...

Check your Bentley Manual and you will see the 2 areas defined..

Good Luck!

[sjf911]

Paid $25 at our local Clutch World.

[Tom '74 911]

Timely post for me. How does one know if the flywheel needs resurfacing? My engine and trans. are out of the car and one of the "while I'm in there's" is to install a new clutch. The flywheel feels pretty smooth ie:no grooves that are obvious - is resurfacing something that one just does regardless?

Thanks,
Tom

[john walker's workshop]

the starter ring slips over the pressure plate, so it doesn't relate to the flywheel. one surface only. most of them are warped, so be sure to tell the guy to stop, if the grinder only contacts one side of the flywheel every revolution or you will have an annoying vibration from the imbalance.

[Blanco]

clutchman.com charged $40.00 here locally. Did it in 15min.

[RWebb]

some shops will surface the crank mounting area & then match the clutch area to that

[mthomas58]

Originally Posted by Blanco

clutchman.com charged $40.00 here locally. Did it in 15min.

I got clutchman's contact info from a local shop. Are you satisfied with their work? Did you take it to him or did he come to you? I was told he is mobile with the equipment on his truck.

Thanks!

[RWebb]

Tom - the spec. booklet & shop manual give you the specs. you could measure with right tools & ability or give a copy to the machinist

[andster]

Originally Posted by Tom '74 911

Timely post for me. How does one know if the flywheel needs resurfacing? My engine and trans. are out of the car and one of the "while I'm in there's" is to install a new clutch. The flywheel feels pretty smooth ie:no grooves that are obvious - is resurfacing something that one just does regardless?

Thanks,
Tom

Anyone have an answer to this? Do you always resurface with a new clutch, kind of like new brakes...

[RWebb]

Originally Posted by andster

Anyone have an answer to this? Do you always resurface with a new clutch, kind of like new brakes...

Let me try again.

No.

the spec. booklet & shop manual give you the specs. you could measure with the right tools & ability, or give a copy to the machinist you take it to.

[javadog]

I recomend using a new flywheel instead of resurfacing an old one, particularly if there was any clutch chatter associated with the old clutch.

FWIW,
JR

[RWebb]

always a good solution if ya got the scratch...

I bought a used SC one and resurfaced it for my '73 with 3.2L motor.

[Steve@Rennsport]

JMHO,....

I never resurface flywheels as it effectively shortens the life of the clutch and my customers would be quite displeased if I did such things.

If its damaged or warped,.....I replace it. If it simply needs a cleanup, Scotchbrite works wonders for that.

Do it once and do it right and you'll never regret it.

[id911T]

I second the scotchbrite method. I've done this on a bunch of cars where the flywheel was straight and in spec. Just a normal clutch replacement where it wasn't "run to the rivets". The scotchbrite breaks up the surface polish and the clutch breaks in nicely. Works like a champ!