Sears Snowthrower Restoration
Posted December 09, 2013 - 07:55 AM
Haven't used it yet, I just put the dozer blade on for the 2" we got last night. The tractor is a 1970 and I believe the blower was purchased at about the same time as I'm the second owner of the whole package and the original owner bought it all because his wife worked at Sears her whole life so he got a discount on it.
I just did some quick calculations, there's roughly a 4.5:1 gear reduction via the gearbox and chain drive. Just as an example then if the engine was turning at 3,000 rpm the blower would be running at a little over 650 rpm.
Posted December 09, 2013 - 01:17 PM
Thats 10 revolutions in a second, seems to be a bit high, did you account for the slave pulley on the blower being smaller than the drive pulley on the motor?
Would you do me a favor once you have it mounted and do an actual count? Should be able to engage the pto and turn the motor over by hand counting the revolutions until the blower does 'one" revolution.... pls and thx.
I think mine might be a little slow as it only blows the snow straight up about 10', if I knew what the oem setup runs I could replace my slave pulley to get it to run closer to the oem spec.
..and for ne1 might be wondering what were talking about.... I have a '57 Bolens on which this same blower has been installed by a PO(possibly my uncle), up to this time I didnt know what the blower was originally for.
Posted December 09, 2013 - 02:52 PM
I will certainly double check everything once I get it hooked up, I just wanted to give you something to go on asap.
- Lance Skene said thank you
Posted December 09, 2013 - 03:18 PM
Im not in any hurry to take this thing apart just to change a pulley, it works fine for what I need at the moment just doing small areas that my other tractors dont fit into, and old man winter doesnt appear to want to give me a break either. If I decide to change anything it wont likely happen for awhile.
Posted December 12, 2013 - 08:21 AM