Ok, so I have a Snapper rear engine Hi Vac. Think it was made in 1978. Came with an 8hp B&S with a 1"x3-5/32" Shaft.
I bought a mower with a 14 hp B&S model 287707.
Got them both off and the new shaft is thicker. Not a huge problem seeing how I'll be replacing the whole motor, but the single pulley on the Snapper motor is a different diameter and depth on the shaft as both on the 14 hp.
Tell me there's something I can do! :frown:
#2
reynoldston
take the crankshaft to a machine shop and have it turned down.
You should be able to buy a new pulley & Hub, try a place that sells bearing, & belts, you will need to
know the exact size of the shaft & the key way size, it maybe a 2 piece set up, it want be cheap, you might
try Mc Master, they are a big supply house that Has Real Stuff,
Not to sound like an idiot, but what do you mean pulley & hub? The shaft now has two pulleys, I just need one. I'll snap some pics. Im new to working on these things so talk to me like I'm 5. lol
If the shaft is to long it may not be to much of a job to cut it to the right length, i have to go right now but i will be back to you in a few hr. to explain what i am talking about with the Pulley & Hub & also about what might be able to be done with the long shaft
You know, I'm looking at it.... and i guess what I've missed is you have your crankshaft coming out the bottom. It's keyed in some way. Then you seem to have this larger diameter shaft connected to it, then the pulleys are on that. Does that sound right?
Now, if I remove all that, leaving just the bottom of the crankshaft, I think I have exactly what I need. I just don't know how to strip that stuff off yet. There's a bolt at the bottom, so that's my first lead, lol
Well looks like you maybe on the right track, I am not looking at what you see, but it sounds right, if there is a bolt in the end of the crankshaft, remove it and see if you can get that piece off, dont bugger up the end of the crankshaft, once you get down to just the CS you may have the same size as the old motor, and maybe the same length, if so you maybe home free, i hope the new motor has the same bolt pattern as the old one, if so & the shafts are the same size, you need th put the old pully on your new to u motor, but sure and set it as close as u can, to the same distance from the face of the mounting plate as it was on the old motor>< Good Luck
You can also buy the hub and pulleys from tractor supply company also. You buy hubs with different hole sizes and them the pulleys come in different sizes which you weld together. You would still need a key but the new pullys use 2 set screws. To take the crankshaft to a machine shop you would have to disassemble the engine. This would also give you a good way to go through the engine for a overhaul.
You said (Got them both off and the new shaft is thicker.) so I don't under stand the last post? Are you not saying the crankshaft is thicker? or am I missing something.
Well, I may have spoken out of turn. It's bigger *now* but I think it's because of the sleeve that is over the part of the crank that hangs out the bottom of the motor, which the pulleys are on. So, I think if I can get that nut off the bottom, the sleeve will come off, leaving the smaller crankshaft behind. If that makes any sense. lol
#13
reynoldston
OK I understand now. The crankshaft sizes may well be the same then. let us know how you make out with it.
Ok, so I got the bolt and washer off of the bottom. That's what held this 'sleeve' onto the bottom of the crankshaft. Now, I can't get the dang thing to slip off. I'm sure it's rusted, used a gear puller to no avail. I'm assuming when it does work it'll seperate at the area with the arrows? Any suggestions on how to bang this thing off?
