Single mass flywheel

Discussion in 'Mazdaspeed 3 Transmission/Drivetrain' started by superman, May 31, 2017.

?

Did you reuse or replace flywheel bolts?

Poll closed Dec 31, 2017.
  1. Reused

    20.0%
  2. Replaced

    60.0%
  3. new bolts came with my southbend clutch from edge, so my answer is irrelevant.

    20.0%
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10 users.
  1. superman

    superman Greenie Member

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    Seems like a lot of people go with the fidanza flywheel and LUK clutch, or spend over 2 x as much on a southbend. This single mass steel option hasn't been around all that long. I remember Dale Gribble saying he wished there was a single mass flywheel to pair with a LUK clutch. Does anyone have any experience with this one?
    http://www.ebay.com/itm/Forged-Stee...ash=item33cb5955f9:g:6v8AAOSwol5Y1rxS&vxp=mtr

    Also
    Did you replace or reuse flywheel bolts?
     
  2. Maisonvi

    Maisonvi Platinum Member

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    Always replace flywheel bolts

    Sent from my SM-G900V using Tapatalk
     
    Maisonvi, via a mobile device, May 31, 2017
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  3. superman

    superman Greenie Member

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    Always a good idea, could never hurt. Is that what you did? I found several citations of speed owners reusing their bolts with new threadlocker with no negative repercussions. Just curious what others actually do. This thread has a voting feature to tally what everyone has done. please feel free to cast your vote. I can anonymize it if people would feel judged for reusing bolts.
     
  4. VashEXE

    VashEXE ButtStallion Tuned Greenie Member

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    The Fidanza flywheel is also single mass. The Fidanza will be very similar in price to that random one that you linked, so I probably wouldn't go that route if I were you.

    I swapped the flywheel bolts out when I installed my new flywheel/clutch and from what I've read I would not ever re-use those bolts. If that ever comes undone you're gonna have a bad time.
     
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  5. Maisonvi

    Maisonvi Platinum Member

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    You can reuse them but if there's a problem do you really want to have to try and get it them again because you reuse old bolts? It just in my mind is a always use new because it's not worth the small cost you have to try and fix it later

    Sent from my SM-G900V using Tapatalk
     
    Maisonvi, via a mobile device, May 31, 2017
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  6. VashEXE

    VashEXE ButtStallion Tuned Greenie Member

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    $40-50 for bolts or the possibility of having to drop the trans again. It's a real shitty job.

    I'm with @Maisonvi
     
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  7. superman

    superman Greenie Member

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    Thank you for the responses. agreed that a person SHOULD replace flywheel bolts. This was more for data collection rather than advice. I can see now that my flywheel bolt polling exercise is doomed to failure. I suck at communicating, or it was a bad idea, or both...

    As for the flywheel in question. It is 18 lbs 1 piece steel construction vs the lighter fidanza 2 piece aluminum with screws. It's possible that this ebay flywheel sucks, but also likely that it doesn't. It's harder to screw up a steel disk than the actual clutch. Last I checked 11 people were "watching" it. I am curious if anyone on here is using one currently.
    This was in a review of the LUK + fidanza combo.

    upload_2017-5-31_16-25-11.png
     
  8. VashEXE

    VashEXE ButtStallion Tuned Greenie Member

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    Luk + Fidanza definitely causes chatter, but the rev benefits are nice. The two piece construction is also a good thing the next time you replace the clutch, since you can just get a new disk for it rather than buying a whole new flywheel. I'm not really sure if there's any downside to the two piece construction to be honest. I don't see why you'd add weight just to reduce chatter, but that's just me. Dale is a smart dude, so I'm sure he has his reasons. Probably pretty hard to fuck up a flywheel, but if I was going to buy one I'd be looking to get every perk out of it that I could. Chatter doesn't bother me.
     
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  9. Maisonvi

    Maisonvi Platinum Member

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    Haha didnt even see the poll as I was responding on tapatalk. Logged in on a PC now, so I can vote for your survey.

    Im not sure if the flywheel bolts are TTY. I dont think they are, but as said before the cost to risk just isnt there for me.
     
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  10. VTMongoose

    VTMongoose John/MD1032 Greenie Member

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    They aren't. You can reuse them, you just have to apply fresh loctite.
     
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  11. broda

    broda Greenie Member

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    Keep in mind that we actually have an option to use ARP flywheel bolts over the OEM ones for basically the same price as well.

    ARP 251-2802 Flywheel Bolt Kit for Ford 1.8/2.0L Duratech

    Edit: Looks like someone just had an issue recently with socket fitment for the bolt heads so that could be a problem.
     
    broda, via a mobile device, Jun 1, 2017
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  12. superman

    superman Greenie Member

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    What I've read is that these don't fit well with the fidanza flywheel. Maybe they work with others though.
     
  13. 5doorsoffury

    5doorsoffury Silver Member

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    I had no issues useing them. The only reason i used them because they have a few more threads and my south bend flywheel was thicker then oem. They use a 3/4" 12pt socket.

    Sent from my SM-G930P using Tapatalk
     
    5doorsoffury, via a mobile device, Jun 1, 2017
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  14. broda

    broda Greenie Member

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    I use them as well but I had my clutch installed when my engine was being built since the trans was already out anyway. So I have no idea if there were any complications with mine or not.
     
    broda, via a mobile device, Jun 1, 2017
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  15. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    I thought they were single use per the shop manual
     
    Easter Bunny, via a HTC device, Jun 1, 2017
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  16. superman

    superman Greenie Member

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    anybody have this? upload_2017-6-1_15-48-58.png
     
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  17. VTMongoose

    VTMongoose John/MD1032 Greenie Member

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    That is correct, because they have preinstalled (obviously single use) threadlocker that is essential to keeping them from vibrating loose. But they are not TTY...the FSM has you tighten them to 113-118 ft-lbs in one step. If you use new loctite, they work fine. The kind of threadlocker Mazda uses is yellow (medium strength) I believe.
     
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  18. Matt@DM

    Matt@DM Approved Vendor

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    Yup, I've reused them a number of times. Just clean and fresh red loctite
     
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  19. NavysailorMS3

    NavysailorMS3 Greenie Member

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    I had the fidanza and luk combo and there was a some good chatter. However I upgraded to the ACT 6 puk and flywheel and there is almost no chatter. So the Fidanza and luk and sitting in the garage.
     
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  20. superman

    superman Greenie Member

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    Prolight or streetlight flywheel? did you replace or reuse flywheel bolts?
     
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