Hi Vac motor swap???

Wolfwood

Forum Newbie
Joined
May 30, 2017
Threads
1
Messages
1
I'm trying to get a little information. Last year I bought a used snapper hi vac mower. The engine says its a 5.5 b&s signature series. I don't know anything about cutting grass (spent most of my life in Florida enjoying a small sandy yard with some sporadic weeds) but I believe my engine is getting tired. It doesn't look new, and when I cut my yard I have yo go slow or else it gets so bogged down that it'll die. We're not talking knee high weeds here, just a week or two of growth and it'll struggle through it. This past weekend my self propelled feature went out. I took it apart and discovered a bad bearing and my rubber drive wheel (?) was worn down against the drive disk (?) so no big deal, just order a couple parts. But while I was down there it got me thinking, maybe she could use a motor swap. So I started doing a little research. I do not know what the diameter and length of the output shaft is. I would prefer for a direct match up so I can unbolt my drive belt pulley and blade adapter from the old engine and transfer them to the new. Will this engine work? Thoughts? Opinions? I can't seem to upload the picture if the mower via my phone. Will try again tonight after work.

http://www.smallenginewarehouse.com/121Q42-0016.html
 

cashman

Well-Known Member
Joined
May 23, 2013
Threads
9
Messages
283
The length and diameter of the crankshaft output will determine if you can use it. The Snapper used a longish crankshaft and some of those had a 1/4" (.250") keyway the full length of the output for the self-propelled pulley. Measure the length and diameter (the dia. is probably 1.00") of the crankshaft on your current engine and see if it matches the engine you want to buy.
 
Top