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I think my Gearbox LT77 is worn / broken
Irony - 30/6/10 at 07:51 PM

Got the LT77 on the bench today. It came with my part built kit car. After hoovering a lot of sawdust (don't ask me it came like that) off it I tried to select gears.

They all seem fine except reverse which make noises, clicky noises that I feel are wrong. Can some people watch my video I made and tell me what they think. This is my first build and to be honest, my first gearbox.


Rinky dink Link

[Edited on 30/6/10 by Irony]


stevec - 30/6/10 at 07:57 PM

By working the input shaft back and forth you may just be hearing backlash noise. Is it noisy when rotated in one direction?
Steve


Irony - 30/6/10 at 08:00 PM

It sounds different, a slight clocky vibration that the other gears don't have. Seems to me like the gears are very worn and when you place in reverse and rotate it takes a couple of degrees or rotation to take up slack. All other gears seem fine, except reverse. Can't believe that reverse is worn. Unless the previous owner when around backwards

[Edited on 30/6/10 by Irony]


scudderfish - 30/6/10 at 08:01 PM

My LT77 is a bit notchy to get into reverse, but it doesn't make noises like that when I let the clutch out.


coozer - 30/6/10 at 09:32 PM

Any one got a LT77 going spare?


GeoffT - 1/7/10 at 08:13 AM

I wouldn't condemn it just yet, that sounds like perfectly normal backlash in the gears to me. It's usually more noticeable in reverse because you introduce a further gear into the train to reverse the direction, hence more backlash.

If it seems reasonably smooth when rotated in one direction only, it's probably ok.