arronm Dropping a turd Gold Donating Members 9,520 Member For: 17y 27d Gender: Male Location: Perth Posted 22/03/14 11:58 AM Share Posted 22/03/14 11:58 AM Its my sons F6. Yep Nizpro car. I have an F6 as well . Both are silverThis one was the old which came first chicken or egg. We believe some time in the cars early life its was over revved causing the loosening. Possibly a missed gear. We got it at 1500ks.Did this as well. But which first, flywheel or balancer Link to comment Share on other sites More sharing options...
turbotrana Member 2,586 Member For: 21y 7m 23d Gender: Male Posted 22/03/14 02:25 PM Share Posted 22/03/14 02:25 PM Same thing used to happen to the Expensive Daewoo 202s. A big heavy steel harmonic balancer should help that. The whole crank assembly namely crank, h/bal, flywheel, clutch need to be balanced really well on a modern machine. Its alot to do with crank harmonics and balancing and not being a fully counterweighed crank like in the EF/ELs does not help either. Link to comment Share on other sites More sharing options...
Z2TT Member 714 Member For: 12y 5m 27d Posted 22/03/14 04:56 PM Share Posted 22/03/14 04:56 PM I'd say high strength threadlocker and spring washers would help. Link to comment Share on other sites More sharing options...
turbotrana Member 2,586 Member For: 21y 7m 23d Gender: Male Posted 23/03/14 12:30 AM Share Posted 23/03/14 12:30 AM I'd say high strength threadlocker and spring washers would help.You would think it would but it does not help much. Threadlock was the first thing I did years ago. Harmonics will defeat it. Link to comment Share on other sites More sharing options...
Kroozin Menace Donating Members 1,990 Member For: 13y 7m 1d Gender: Male Location: Sydney Posted 25/03/14 09:54 AM Share Posted 25/03/14 09:54 AM Tab washers? Link to comment Share on other sites More sharing options...
fehlbie Donating Members 142 Member For: 15y 7m 22d Posted 25/03/14 11:35 AM Share Posted 25/03/14 11:35 AM Tack weld the bolt heads to the flywheel Link to comment Share on other sites More sharing options...
turbotrana Member 2,586 Member For: 21y 7m 23d Gender: Male Posted 25/03/14 04:38 PM Share Posted 25/03/14 04:38 PM Tab washers?metal tab washers might be too soft to be under flywheel bolts. Link to comment Share on other sites More sharing options...
turbotrana Member 2,586 Member For: 21y 7m 23d Gender: Male Posted 25/03/14 04:39 PM Share Posted 25/03/14 04:39 PM Tack weld the bolt heads to the flywheelI reckon just weld the flywheel to the crank Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 1m 30d Gender: Male Location: Perth Posted 25/03/14 09:44 PM Share Posted 25/03/14 09:44 PM We can send an unmanned space craft to mars yet we can't keep a flywheel on a 6cyl motor. Link to comment Share on other sites More sharing options...
Anthonyfgxr6tute New Member 2 Member For: 7y 4m 26d Posted 27/06/17 09:55 AM Share Posted 27/06/17 09:55 AM I've also got the flywheel bolt problem.It's an fg xr6t ute 6speed & It's running a mal wood option 3plus kit.One of the bolts snapped & ruined the clutch ,flywheel & crank.So I've replaced them with a new clutch, flywheel & I also put a new f6 engine with 20 000ks on it in.This time the bolts where tig welded around the head of the bolts which was recommended by several reputable builder's. Well now I'm in the process of putting a built engine in so the old one came out the other day.When we pulled the box out we noticed that the clutch plate had grooves & marking on it like it's flopping around.Would this be where the vibration & imbalance causing the flywheel bolts to loosen be from?or would that stem from something else?Any help on the subject would be awesome thanks. Link to comment Share on other sites More sharing options...
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