HELP! Weirdest rear diff sound, help me diagnose it - MBX6T
10-10-2012, 05:12 PM
#16
Chopper, how many shims do you have on the left outer side of the bearing?
You need a minimum of 2 of those large shims to make the crown and pinion mesh as close as possible, if thats what you running already see if you can squeeze in a 3rd.
Its a common problem with the 6T and mainly caused by having the brakes set too hard, if you look at the angle of the teeth of the gears they are flatter one side than the other which is more angled so under heavy braking they ship.
to be 100% good again replace both gears and bulkhead and run 2 shim on the left from new, if thats too tight and notchy run 1 for a race meet then fit the 2nd.
Craig
You need a minimum of 2 of those large shims to make the crown and pinion mesh as close as possible, if thats what you running already see if you can squeeze in a 3rd.
Its a common problem with the 6T and mainly caused by having the brakes set too hard, if you look at the angle of the teeth of the gears they are flatter one side than the other which is more angled so under heavy braking they ship.
to be 100% good again replace both gears and bulkhead and run 2 shim on the left from new, if thats too tight and notchy run 1 for a race meet then fit the 2nd.
Craig
10-10-2012, 06:20 PM
#17
Chopper, how many shims do you have on the left outer side of the bearing?
You need a minimum of 2 of those large shims to make the crown and pinion mesh as close as possible, if thats what you running already see if you can squeeze in a 3rd.
Its a common problem with the 6T and mainly caused by having the brakes set too hard, if you look at the angle of the teeth of the gears they are flatter one side than the other which is more angled so under heavy braking they ship.
to be 100% good again replace both gears and bulkhead and run 2 shim on the left from new, if thats too tight and notchy run 1 for a race meet then fit the 2nd.
Craig
You need a minimum of 2 of those large shims to make the crown and pinion mesh as close as possible, if thats what you running already see if you can squeeze in a 3rd.
Its a common problem with the 6T and mainly caused by having the brakes set too hard, if you look at the angle of the teeth of the gears they are flatter one side than the other which is more angled so under heavy braking they ship.
to be 100% good again replace both gears and bulkhead and run 2 shim on the left from new, if thats too tight and notchy run 1 for a race meet then fit the 2nd.
Craig
The gear is way too expensive to replace, 15 for the bevel and 40 for the conical, I just bought these brand new and they look perfect.
Thanks for the help, I will try the shims.
10-10-2012, 06:53 PM
#18
whoops, looked in the manual again and I see that it does say to add shims... guess thats my problem. I put 2 shims, 3 were too notchy, now its tight
10-10-2012, 07:35 PM
#19
yep, not many written instructions in a mugen manual but in the 6T that's one of the most important, lucky you didn't wreck the gears.
10-10-2012, 07:38 PM
#20
works perfect now
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