e5c0rt.mk1
Member
We've got a old manitou mlt630 120lsu 4 speed manual, the first time I drove it down the road when under load it sounded ok, but as soon as you let off the throttle going down a hill it growls like mad, honestly sounds like the transmission is going to explode.
I took the 90deg box and transmisson out of it yesterday expecting to find the transmission in a hell of a mess inside, but its not, its mint. The oil is like brand new, no bits of metal in it anywhere, all the bearings are like new all the gears are mint. I think its either had a new one in or its recently been rebuilt.
Just took the 90deg box to bits the main shaft looks in good condition, abit of wear on the hydraulic pump splines but for the age of it I can live with that, the big nut was a little loose, maybe 1/8th of a turn but I don't think its done any damage to anything. Bearings seem in good condition. And very little backlash on the gears when it was assembled.
The only thing I can find that are knackered is the shaft from the engine to the 90deg box (i've got a new one for it), and the 2 gears in the 90deg box have some damage to the teeth.
Would the damage to these gears cause such a loud growling noise when going downhill ? Not sure if I'm barking up the wrong tree with it, or the 2 gears are the only problem with the whole thing.
I've got a good 2nd hand 90deg box and transmission for it out of a burnt one as I thought one or both were going to be completely destroyed inside, but thats not really the case.
I took the 90deg box and transmisson out of it yesterday expecting to find the transmission in a hell of a mess inside, but its not, its mint. The oil is like brand new, no bits of metal in it anywhere, all the bearings are like new all the gears are mint. I think its either had a new one in or its recently been rebuilt.
Just took the 90deg box to bits the main shaft looks in good condition, abit of wear on the hydraulic pump splines but for the age of it I can live with that, the big nut was a little loose, maybe 1/8th of a turn but I don't think its done any damage to anything. Bearings seem in good condition. And very little backlash on the gears when it was assembled.
The only thing I can find that are knackered is the shaft from the engine to the 90deg box (i've got a new one for it), and the 2 gears in the 90deg box have some damage to the teeth.
Would the damage to these gears cause such a loud growling noise when going downhill ? Not sure if I'm barking up the wrong tree with it, or the 2 gears are the only problem with the whole thing.
I've got a good 2nd hand 90deg box and transmission for it out of a burnt one as I thought one or both were going to be completely destroyed inside, but thats not really the case.