do i need a new flywheel when replacing the clutch?

Question

1999 Subaru has 78k city miles on it, replacing the original clutch today. the shop is recommending the flywheel replacement.

Answer 1

It depends on the condition of the clutch. If enough of the clutch material was worn away to allow the metal to contact the flywheel, it would quickly damage it. This damaged flywheel would in turn damage the new clutch, reducing its life span. Then you'd end up spending the money to buy a new clutch, and a new flywheel, and the labor to put them all in again.

Replacing the flywheel now will only be a fraction of that price, since you're already paying for the clutch and labor.

It's probably too late for this info now, but you can probably find a mechanic in your area who's been recommended by someone else at the website below. Maybe you can find your guy there, and feel better about his recommendation.

Answer 2

Flywheel And Clutch Replacement

Answer 3

Labor will cost next to nothing because it's already apart and they're looking at the flywheel. At the least you should have it resurfaced or if that's not possible or practical get a new one. Any high spots or heat checks or other defects even those you can't see by eye from the previous clutch will cause premature wear on the new one and shorten it's life. Replacing a flywheel later on is every bit as expensive as the clutch because it's the same amount of work.

Answer 4

City miles can be hard on all parts of a clutch. Given that the clutch has worn out, you should ask why the shop is recommending replacement of the flywheel instead of refacing it.
Oftentimes, a flywheel will be worn with grooves too deep to reface without going beyond manufacturers specs. In this case, you will be glad that you replaced it as either a warped flywheel or a worn one will wear out one's clutch much faster than would be normal.
If in fact, the flywheel cannot be refaced, I suggest that you take their advice and replace it. It will both force them to guarantee their work, which they probably will not do without the flywheel replacement, and second, you wil notice a much smoother clutch engagement.

Answer 5

Usually an aftermarket machine shop can resurface the flywheel if it is not damaged/worn beyond it's specifications. Have your shop look into that option. If not and you're keeping the car, replace the flywheel it will only make the clutch work better & last longer.

Answer 6

Glad to see lots of factually based answers so far!!!
In the gear teeth area, if the teeth are damaged then it will be a judgement call generally less than 10% surface area damage is acceptable. Wear is in the same order compared to manufacturing specs (available on line). Missing teeth definitely replace.
On the drive surface if you drive in the city or on the moon its your style and efficiency with the clutch that wears them out and has no factor on replacing the flywheel. If the drive surface is out of true using feeler gauges and a straight edge by more than the manufactures specs (as above) replace other wise keep it .

Cost versus your ability to confirm the facts and figures

Answer 7

It is a good idea to replace the flywheel with the clutch so that everything is new and works properly. Some clutches come with the new flywheel.

Answer 8

You do need it if you have chipped teeth on the flywheel. Otherwise, probably not. It may be that some of the cost is already being paid in labor for the clutch

Answer 9

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The clutch should be adjustable with the cable at the transmission end. They should do it for free, there should be about 3/4" of play in the pedal. However, you should have had the clutch replaced when the tranny was removed, since everything had to come off anyway.

Answer 10

will not replaceing at the flywheel cause the engine to blow a piston or break down?