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Author Topic:   Noisy Bert
XC man
Dirt Full Roller

Total posts: 39
posted May 05, 2004 07:00 PM  
This is my first year with a Bert tranny , And have a stupid question , Like on the slow laps under caution the thing makes some really bad noises but quiets right down when you are picking up the pace for a restart and at racing speed . Is this normal ? The trans is on its fourth year .

Dirt Full Roller

Total posts: 53
posted May 05, 2004 07:29 PM  
It is normal, the noise you hear is the main gears. They make that noise as there is about 1/4inch of play between the gears. And as you go around the track in high range at a low speed they just slap back and forth.

[This message has been edited by R26MOD (edited May 05, 2004).]

XC man
Dirt Full Roller

Total posts: 39
posted May 05, 2004 08:19 PM  
Good to hear ! Changed the fluid today after two nights of racing and it was still good with very little debris . Thanks for the info .

Dirt Forum Champ
Total posts: 570
posted May 05, 2004 09:56 PM  
Also, I believe the gears are straight cut not angle cut, it makes them grind a little when you shift into high too, nothing to worry about though. Look around, many places offer an affordable rebuild that will put your mind at ease.

Dirt Freak

Total posts: 209
posted May 06, 2004 03:09 AM  
most of the noise that you will be able to hear is from the coupling inside the gearbox that locks up the main drive shaft. This is also what you'll most likely hear grinding if you miss shift into top (direct drive) gear. The coupling is a 3 spigot "spider" or "dog" type coupling.

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