a2z Member 58 Member For: 14y 10m 20d Gender: Male Location: 2750 Posted 09/04/13 11:37 AM Share Posted 09/04/13 11:37 AM After removing the gearbox on my 2010 fg f6 at christmas and finding the six bolts half way out I thought I would just tighten them and all would be fine..... well for 4 months only.Yesterday I heard the same knocking noise again. Before just pulling out the gearbox I thought I'd ask around about a better fix. Has anyone had this problem before or knows a fix?Would a better loctite be available or more torque on the bolts or would helicoils be needed????Any suggestions would be awesome. Link to comment Share on other sites More sharing options...
knoles Donating Members 390 Member For: 13y 1m 2d Gender: Male Location: Port Hedland Posted 09/04/13 12:35 PM Share Posted 09/04/13 12:35 PM (edited) The holes become elongated when they come loose and will keep coming loose.When you say flywheel I assume its manual? Mostly happens to the flex plates on the autos, I've not heard of a manual having the problem. Will need a new one either way I reckon Edited 09/04/13 12:37 PM by knoles Link to comment Share on other sites More sharing options...
a2z Member 58 Member For: 14y 10m 20d Gender: Male Location: 2750 Posted 09/04/13 09:00 PM Author Share Posted 09/04/13 09:00 PM Yeah mate its manual. So basically because the holes in the fly wheel become destorted there will always be a play and no ammount of tourqe or or fitting procedure wouldl be a permanent fix? Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 15y 10m 18d Gender: Male Location: Adelaide Posted 09/04/13 09:16 PM Share Posted 09/04/13 09:16 PM Yup get a new flywheel and new bolts and even some H/D thread locker Link to comment Share on other sites More sharing options...
spinr33 Donating Members 964 Member For: 12y 8m 1d Posted 09/04/13 09:59 PM Share Posted 09/04/13 09:59 PM I'd get some ARP bolts as you can torque them more Link to comment Share on other sites More sharing options...
a2z Member 58 Member For: 14y 10m 20d Gender: Male Location: 2750 Posted 10/04/13 05:24 AM Author Share Posted 10/04/13 05:24 AM What a fricken pain in arse. I dont need a new clutch yet and the gear box has to be pulled out again in as little as 4 months. Knowing my luck the clutch will have an epic fail as soon as I put the box back in. Any sugestions as to which is a better fly wheel? Link to comment Share on other sites More sharing options...
turbotrana Member 2,586 Member For: 21y 19d Gender: Male Posted 10/04/13 08:49 AM Share Posted 10/04/13 08:49 AM This is what I do with the auto. Same with the manual. My opinion is just not enough bolts on the crank . But the lock tabs stop the bolts undoing.I had a Expensive Daewoo 202 that would spit the crank off. Putting an extra 4 10mm allen key headed bolts inbetween the existing bolts solved that. Then I went with an alluminium flywheel with standard bolts and never budged. I think ally helps the harmonics. 1 Link to comment Share on other sites More sharing options...
a2z Member 58 Member For: 14y 10m 20d Gender: Male Location: 2750 Posted 10/04/13 09:29 AM Author Share Posted 10/04/13 09:29 AM So my utes only got 23000km on it and only done 9k of those with 380rwkw. The fly wheel and clutch are still in great condition. Do you think I should wait on replacing the fly wheel and go with tabs until I need to replace the clutch and go a new fly wheel then?Where can I get some tabs from? Link to comment Share on other sites More sharing options...
a2z Member 58 Member For: 14y 10m 20d Gender: Male Location: 2750 Posted 10/04/13 09:32 AM Author Share Posted 10/04/13 09:32 AM Did you fabricate these yourself. The retainer looks like it sits in a machined groove in the bolt head. Link to comment Share on other sites More sharing options...
turbotrana Member 2,586 Member For: 21y 19d Gender: Male Posted 11/04/13 12:53 AM Share Posted 11/04/13 12:53 AM I made it all myself but copied this method from "grade 8" fasteners. I used the original bolts but you need to get a machinist to cut a groove in the middle of the bolt and get the right size circlip. I think is 20mm from memory. I am quite sure I have a set of ally tabs that I could send you to try and maybe a sample circlip.But with anything with engine building you need to have attention to detail for it to work as intended.Alternatively you could check Grade 8 to see if there is anything they have. I have used their products before but the crank bolts they supplied were fully threaded to the head which I deemed not the best. They need to have the shank to have a tight as possible fit. You need to torque it right with a good torque wrench. I would even undo and retighten a couple of times as I feel more comfortable that whatever little stretch that is in the bolt is taken out.I dont know if I would use locktite. I am undecided on the benefits of this as I have used it enough times and the standard bolts still came loose on my turbo 202 torana. Link to comment Share on other sites More sharing options...
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