vertical shaft enigne running horizontally

[bigfootrules31]

Me and my friend got given an el cheapo 4 stroke push mower engine. so instead of wrecking it (literaly) we wanted to put it on a bike, obviously its a vertical shaft engine, but with a little bit of work and some elbow grease i got it to run horizontaly. first i took of the carb and made an adaptor out of plate stainless so its upright. i dont run it for long on its side and i tip it back and let it run with whats left in the carb to lube her up again.

 

[Russ2251]

Pics? Vids?

 

[Kenny_McCormic]

It has no oil dipper and will blow up quickly.

 

[Russ2251]

If Briggs, could just add a dipper. Tecumsehs use pumps which may/may not be usable.

 

[bigfootrules31]

it shouldnt, i overfilled the oil so that the crankshaft touches the oil, also i put a little bitta oil into the fuel

 

[bigfootrules31]

im still trying to figure out how to put pics and stuff on here, and i still need to get the engine onto a bike

 

[rock-star-4life@live.com]

just open up the engine and weld on a small hooked shaped piece of metal to the rod, thats what i did

 

[jr dragster T]

just open up the engine and weld on a small hooked shaped piece of metal to the rod

Lol cast dippers are bad enough and you think a welded hook will hold?

 

[Kenny_McCormic]

A piece of HEAVY sheet metal weld reinforced and bolted to the rod by both bolts would be better.

 

[rock-star-4life@live.com]

could you machine the crankshaft so that you could slide a clutch on it? i think it has to be knotched so that the key will slide on it

 

[Kenny_McCormic]

All the common name 4 stroke push mowers I have encountered use a straight keyed shaft in a common inch size.

 

[rock-star-4life@live.com]

mine has a cressent shaped key that sits where the bade thingy holder was, i dont think a clutch will adapt to it

 

[Kenny_McCormic]

Pics please.

 

[rock-star-4life@live.com]

im going to try to post a pic idk if its going to work

 

[rock-star-4life@live.com]

it diddent work, but here is a simular crank shaft

http://www.smallenginesuppliers.com/shop/html/images/small_engines/parts/crankshaft.jpg

 

[Russ2251]

2 of my Briggs (Quantum 6.5 hp and Classic 3.5 and 3.75 hp) V-shafts are 7/8" with woodruff as well as straight keys. Honda GVC 160 is .984 or 63/64's and woodruff keyed.
Lawn-Boys are 7/8" and 63/64" with no keys.

 

[rock-star-4life@live.com]

but could i put a clutch on it?

 

[Russ2251]

Yes, with some work and bucks.
What is diameter of pto? Use digital or dial caliper for precise measurement.

 

[rock-star-4life@live.com]

its at school but i think its 5/8th, can i use somthing a machine shop to mod the crankshaft, or do i do somthing else

 

[Russ2251]

⅝" along with ¾" are the 2 most common bore sizes for centrifugal clutchs. I've never seen smaller than ⅞" on a vertical shaft. Doesn't mean they don't exist.
Will have to cut a straight keyway as no clutch, that I am aware of, uses a woodruff key.
Here is ¼" keyway I cut (kudos to Mr. Kibble) into DuraForce crankshaft. Diameter of this shaft is .984 or 63/64". These are normally keyless.