zKars Posted November 8, 2015 Share #1 Posted November 8, 2015 What say you good Z'ers? When putting in a new clutch, what is your SOP on the flywheel resurfacing? Wet sand with Silcon carbide paper till deglazed? Always take in for a skim resurface to local rebuilder? Don't bother? Share your experience. Yes, I admit it, this is a silly question is based on being cheap, and in a hurry to get a clutch swap done in one go without a day or two "in the shop" waiting for a proper skim to get done.... Link to comment https://www.classiczcars.com/topic/52795-to-machine-or-not-to-machine-flywheel-resurface-that-is-the-question/ Share on other sites More sharing options...
Zed Head Posted November 9, 2015 Share #2 Posted November 9, 2015 Monroe describes looking for heat-checking, and sanding and cleaning if there is none and the surface is flat. It worked for me. If you use a hard block when you sand, the sanding pattern will give you a good idea of the quality of the surface. A good consistent pattern can only be achieved on a flat, non-heat-checked surface. I like to use a flashlight behind my straight edge to see how flat a surface is. Just a trick that works. My first flywheel had a visible wear pattern shown by a straight edge. I sanded it and used it anyway and it gave me chattering problems when it got hot. I don't know if the it was the flywheel or the clutch. It was a Zoom Perfection clutch kit. My second one was perfectly flat by straightedge and worked fine after sanding and cleaning, with a new, different brand, clutch kit. Rhinopac brand. I like to experiment though so take that in to account. Link to comment https://www.classiczcars.com/topic/52795-to-machine-or-not-to-machine-flywheel-resurface-that-is-the-question/#findComment-480770 Share on other sites More sharing options...
Kurbycar32 Posted November 9, 2015 Share #3 Posted November 9, 2015 Unless using a new flywheel i always drop mine off at a machine shop for resurfacing. The last time i did one it cost about 40 bucks, that's not worth my time to mess with trying to do it myself with sandpaper. Link to comment https://www.classiczcars.com/topic/52795-to-machine-or-not-to-machine-flywheel-resurface-that-is-the-question/#findComment-480783 Share on other sites More sharing options...
LeonV Posted November 9, 2015 Share #4 Posted November 9, 2015 I was in a similar situation with the last Z clutch I did. The flywheel looked great, like a brake rotor. I lightly sanded the surface with some medium grit sandpaper with a flat stone backing. No issues. Link to comment https://www.classiczcars.com/topic/52795-to-machine-or-not-to-machine-flywheel-resurface-that-is-the-question/#findComment-480784 Share on other sites More sharing options...
zKars Posted November 9, 2015 Author Share #5 Posted November 9, 2015 Great advice all, thanks!123100-P0100 flywheels are hard to find. Rock auto only lists 2+2 flywheels (20 mm) . Ebay has nothing. Clutch kits come up with nothing that includes a flywheel, where as only a few years ago, there were none. Don't really want a Fidenza alloy flywheel. Well I do, but not at the current exchange rates! Anyone with a source? I'm fresh out of used ones. Link to comment https://www.classiczcars.com/topic/52795-to-machine-or-not-to-machine-flywheel-resurface-that-is-the-question/#findComment-480789 Share on other sites More sharing options...
Zed Head Posted November 9, 2015 Share #6 Posted November 9, 2015 It's been noted before that the 225 mm stock flywheels aren't available. I know a local shop that had a few in inventory a while back. Somebody on eBay might have one. But apparently nobody is casting them anymore. One more NLA part. I have a small collection of used ones that I think will last me. You might try the wrecking yards for used. Link to comment https://www.classiczcars.com/topic/52795-to-machine-or-not-to-machine-flywheel-resurface-that-is-the-question/#findComment-480805 Share on other sites More sharing options...
Kurbycar32 Posted November 9, 2015 Share #7 Posted November 9, 2015 i have a used 225mm flywheel lying around here. i ordered it for my car when the seller listed it as a 240mm unit and got stuck with it because shipping was more expensive than the part. you referenced part numbers and i think you may have been implying the lightweight "frisbee" maxima flywheels, i was completely unable to find one this last summer. Also beware that there are some part numbers floating around for a fidanza steel wheel, these are totally off the market and NLA. I ended up with a 240mm fidanza aluminium unit Link to comment https://www.classiczcars.com/topic/52795-to-machine-or-not-to-machine-flywheel-resurface-that-is-the-question/#findComment-480824 Share on other sites More sharing options...
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