I have a home-built riding snowblower that I purchased last summer. The blower stuff works quite well and it has a relatively new 18hp Honda twin, but the lawn tractor it was built on has a couple of problem assemblies. I haven't found anything to help me identify the make or model of the lawn tractor, but from the looks of some of the components, I'm fairly certain it is old enough that parts would not be available even if I new it's lineage.
The tractor chassis is used in reverse - the blower mounts in front of the drive wheels & it steers at the rear. The Honda is a horizontal shaft engine with a double belt drive to the blower drive shaft and another belt to a right-angle gearbox. A V-belt runs from the vertical shaft of the right-angle drive to the input shaft on top of the hydrostatic transmission.
The input shaft on the gearbox is badly worn. I've repaired it a few times this winter, but each repair only holds for a few hours. My next move would be to machine the shaft down to .5" and either source a new bearing to match or machine a shim that fits the existing bearing. But in addition to the gearbox issues, the hydro trans is just about finished. I have a 1/4 mile driveway to clear, and after the trans gets good and hot, I can barely climb a couple of relatively easy slopes in my driveway, even with the blower disengaged.
I started looking at ebay hydro transmissions and spotted a couple of Cub Cadet shaft drive units. The light-bulb came on: I could eliminate both of my problems with a shaft drive trans! Unfortunately, the CC 2145 and 2146 transmissions (probably the same trans for two closely related models) are very tall, and the driveshaft for the blower runs right on top of the transmission.
Is anyone aware of other tractors that used shaft drive transmissions? I'd rather have a hydrostatic trans - I find myself varying the pace of the snowblower quite a lot. The CC transmission looks like I might be able to run the blower driveshaft on one side of the transmission/rear axle assembly, just above the axle, but that would require building a new chassis and relocating the jackshaft on top of the blower assembly. I have the equipment and skills to do that, but if it comes to that, I should probably just buy a PTO snowblower for my Chinese diesel compact tractor.
Any ideas for other shaft drive transmissions, or an affordable right-angle gearbox?
Edited by mbrandt1402, January 17, 2017 - 06:32 PM.