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Old 11-06-2009, 06:25 AM   #1
flacopower
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Default New flywheel or resurfaced?

Hey at 90,000 miles my clutch is pretty much dead so I am replacing it next weekend. My question is should I just resurface my flywheel, or purchase an entirely brand new OEM unit? I have read on here that they can't be resurfaced, while others have had no problem resurfacing their units. So which one is it?
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Old 11-06-2009, 07:49 AM   #2
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Unless you want the performance gain of a lightweight flywheel, I would go for the resurfacing, I don't see any reason you couldn't resurface the original. All you would need is a machine shop with a blanchard grinder

I wouldn't pay more than about $50, even if they remove the dowel pins. Also there are "insert" style flywheels that have a removable friction plate for ease of replacment in the future.
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Old 11-06-2009, 07:49 AM   #3
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Both. According to Subaru you "can't" resurface your stock flywheel. However, when iwas getting mine priced out even the dealership said they resurface them and have had no issues. Just get it resurfaced if you are sticking with oem.
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Old 11-06-2009, 09:25 AM   #4
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I had mine resurfaced when I got the clutch replaced. Had severe judder when it would engage. I was also at about 90k when I had to replace the original.

Unless you want to run the risk of opening things up again just buy a new one.
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Old 11-06-2009, 09:28 AM   #5
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I would just buy a new OEM one. You almost always pay more in the end trying to save a buck...

Plus with a new one you have peice of mind. Just try to get a bargain on the new one.
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Old 11-06-2009, 10:42 AM   #6
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Quote:
Originally Posted by SS/GNX View Post
I would just buy a new OEM one. You almost always pay more in the end trying to save a buck...

Plus with a new one you have peice of mind. Just try to get a bargain on the new one.
How exactly do you bargain for a brand new OEM piece?
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Old 11-06-2009, 10:59 AM   #7
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contact Subarugenuineparts

There's a difference between bargaining and a bargain. It's not a new term.
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Old 11-06-2009, 11:45 AM   #8
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I would never resurface another WRX flywheel.

Subaru says not to.

I tried it anyway.

major fail

it was off by 100ths of an inch

which could have completely borked my engine.

I put the entire clutch back together, tranny back in the car

fired it up and the entire car rattled like a 7.0 earthquake

i had to tear it all down again

buy a NEW flywheel, reinstall.......


Subaru says not to resurface them for a reason.

IMO it's not worth the risk.
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Old 11-06-2009, 12:00 PM   #9
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Every WRX and STI I have seen with a resurfaced flywheel ended up with problems of some sort.


OEM flywheels are dirt cheap, aftermarket flywheels arent THAT expensive either.

Do the job right. Dont cut your FW.
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Old 11-06-2009, 12:13 PM   #10
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thanks for the tips guys!! Going with a new oem flywheel couldn't find the 02 so I am going with the 03-05 part number 12342AA071 I heard the only diff is that its heavier to prevent any clanking around.. Also went with the exedy OEM clutch and Pressure plate.
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Old 11-06-2009, 12:28 PM   #11
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12342aa071 is the correct pn for your model and year
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Old 11-06-2009, 12:48 PM   #12
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Is this specific to certain years? I've done 2 clutches in 06 WRX's (2 different cars) and both used resurfaced OEM flywheels with brand new Exedy (OEM) clutches/pressure plates. Neither had any issues.
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Old 11-06-2009, 01:18 PM   #13
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^^^ the 03-05 flywheels are heavier for a reason, they are supposed to help stop the shakes and judders, and they are cheaper
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Old 11-06-2009, 01:30 PM   #14
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<---- has been running a resurfaced flywheel for ~25k miles with no problems at all.
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Old 11-06-2009, 02:20 PM   #15
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For future reference if people search for this topic:

There will always be people that do things the wrong way and have no problems.

A stock flywheel is cheap and will work better than a resurfaced one 100% of the time. It's a time saver vs removing and taking it to be resurfaced, and gives you piece of mind that it will work correctly the first time you install it. You will only replace it once or twice the entire time you have the car(if you know how to drive a manual correctly). Just do it the right way and get a new one.
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Old 11-06-2009, 02:30 PM   #16
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i had mine resurfaced when i upgraded to an ACT HDMM clutch. I didn't have any issues with it until it came time for a new clutch disc cause i was a noob at launching. Maybe it just depends on the person or shop that does the resurfacing?
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Old 11-06-2009, 11:50 PM   #17
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This is interesting. I had my flywheel resurfaced and now I am experiencing some issues that I feel can possibly be attributed to the flywheel/clutch. Strange noises. At first, I thought that is was bearing noise, but now I am wondering if there is some engine noise too, caused by the resurfaced flywheel. Damn.. this is really upsetting. I wish I would have read this thread, or one like it, months ago when I installed a new clutch on my car.. I would have just bought a new flywheel!
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Old 11-06-2009, 11:54 PM   #18
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i'll chime in here as well... been on a resurfaced flywheel under a subaru dealership's recommendation for 20k miles already and no issues.
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Old 11-07-2009, 12:06 AM   #19
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Ive been on both resurfaced and new, frankly I cant tell the difference.
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Old 11-07-2009, 06:55 AM   #20
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Quote:
Originally Posted by Tim-H View Post
For future reference if people search for this topic:
Please don't tell me to search as this is obviously a controversial issue, and even this thread has been back and forth without a conclusive determination as to which is better or worst... I am leaning towards a new flywheel though...
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Old 11-07-2009, 08:02 AM   #21
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It would be interesting to know what the rotating assembly weight v.s. flywheel weight is, being that 100th's of an inch makes it off balance. Also of interest, how many people with resurfaced clutch problems have installed aftermarket pullies?
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Old 11-07-2009, 08:13 AM   #22
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Quote:
Originally Posted by Tim-H View Post

A stock flywheel is cheap and will work better than a resurfaced one 100% of the time.
How in gods name can you make this statement?

Even assuming resurfacing your flywheel is a horrible idea that is VERY likely to cause problems....you can't make the above statement.
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Old 11-07-2009, 08:29 AM   #23
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I have a resurfaced OEM flywheel in my STI... no problems, even with a nasty 6-puck clutch.
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Old 11-07-2009, 11:18 AM   #24
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Quote:
Originally Posted by REX8 View Post
How in gods name can you make this statement?

Even assuming resurfacing your flywheel is a horrible idea that is VERY likely to cause problems....you can't make the above statement.
Yes it's very easy to make that statement. Buying a new flywheel will work properly everytime you install it. Resurfacing, as we've seen, is prone to problems.

Quote:
Originally Posted by flacopower View Post
Please don't tell me to search as this is obviously a controversial issue, and even this thread has been back and forth without a conclusive determination as to which is better or worst... I am leaning towards a new flywheel though...
I meant if people search and find this thread in the future.
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Old 11-07-2009, 11:50 AM   #25
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+1 to not resurfacing them. Subaru doesn't recommend it as it can cause issues. None of my techs recommend it and every technical engineer and field rep I have spoken to has said the same.

Last edited by blackfang; 11-07-2009 at 11:56 AM.
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