Using V-belt to convert vertical to horizontal-drive

[Ext User(Jason James)]

One of the problems with using a lawn-mower engine to power a go-cart, is
the vertical crank shaft on mowers. You need a horizontal PTO to drive the
rear axle.

This brought back a memory where years ago I recall the same problem being
overcome by simply making a drive belt rotate its drive thru 90 degrees. The
belt was long, about 2 feet, but it did work. Ithink it was a large mower.
Sound reasonable,..as long as a jockey wheel was used to stop the belt
chafing where it was close to-gether?

TIA,..Jason

[Ext User(atec)]

Jason James wrote:
> One of the problems with using a lawn-mower engine to power a go-cart, is
> the vertical crank shaft on mowers. You need a horizontal PTO to drive the
> rear axle.
>
> This brought back a memory where years ago I recall the same problem being
> overcome by simply making a drive belt rotate its drive thru 90 degrees. The
> belt was long, about 2 feet, but it did work. Ithink it was a large mower.
> Sound reasonable,..as long as a jockey wheel was used to stop the belt
> chafing where it was close to-gether?
>
> TIA,..Jason
>
>
I wonder about the longevity of this ?
have you considered asking your local dump guys for a right angle drive ?

[Ext User(John_H)]

Jason James wrote:

>One of the problems with using a lawn-mower engine to power a go-cart, is
>the vertical crank shaft on mowers. You need a horizontal PTO to drive the
>rear axle.
>
>This brought back a memory where years ago I recall the same problem being
>overcome by simply making a drive belt rotate its drive thru 90 degrees. The
>belt was long, about 2 feet, but it did work. Ithink it was a large mower.
>Sound reasonable,..as long as a jockey wheel was used to stop the belt
>chafing where it was close to-gether?

Works fine and shouldn't chafe unduly.

Get your hands on the Dayco "Product Information and Engineering
Design Data" if you want to get it right first try (it's free).
There's also plenty of vee belt info in most good Engineering
references -- eg Machinery's Handbook.

--
John H

[Ext User(Jason James)]

"John_H" <john4271@hotmail.com> wrote in message
news:o6isg1dngldrhme6dcie9ksqt6k1et4bp7@4ax.com...
> Jason James wrote:
>
> >One of the problems with using a lawn-mower engine to power a go-cart, is
> >the vertical crank shaft on mowers. You need a horizontal PTO to drive
the
> >rear axle.
> >
> >This brought back a memory where years ago I recall the same problem
being
> >overcome by simply making a drive belt rotate its drive thru 90 degrees.
The
> >belt was long, about 2 feet, but it did work. Ithink it was a large
mower.
> >Sound reasonable,..as long as a jockey wheel was used to stop the belt
> >chafing where it was close to-gether?
>
> Works fine and shouldn't chafe unduly.
>
> Get your hands on the Dayco "Product Information and Engineering
> Design Data" if you want to get it right first try (it's free).
> There's also plenty of vee belt info in most good Engineering
> references -- eg Machinery's Handbook.
>
> --
> John H

Tah for that. The gearbox would be ideal but a little expensive I suspect
for a toy for the boys. Say a 3-3.5hp B&S. Things like angle grinder g/box a
little too flimsy,..while the Val diff laying in the garage,..a little
big,..and heavy.

Jason

[Ext User(Jason James)]

"atec" <atec77@xxxhotmail.com> wrote in message
news:430e3d41$1@dnews.tpgi.com.au...
> Jason James wrote:
> > One of the problems with using a lawn-mower engine to power a go-cart,
is
> > the vertical crank shaft on mowers. You need a horizontal PTO to drive
the
> > rear axle.
> >
> > This brought back a memory where years ago I recall the same problem
being
> > overcome by simply making a drive belt rotate its drive thru 90 degrees.
The
> > belt was long, about 2 feet, but it did work. Ithink it was a large
mower.
> > Sound reasonable,..as long as a jockey wheel was used to stop the belt
> > chafing where it was close to-gether?
> >
> > TIA,..Jason
> >
> >
> I wonder about the longevity of this ?
> have you considered asking your local dump guys for a right angle drive ?

You're dumps sound like they're better than ours. "No scrounging",...a least
while the Hanmar grader is out of sight!

Jason

[Ext User(atec)]

Jason James wrote:

> "atec" <atec77@xxxhotmail.com> wrote in message
> news:430e3d41$1@dnews.tpgi.com.au...
>
>>Jason James wrote:
>>
>>>One of the problems with using a lawn-mower engine to power a go-cart,
>
> is
>
>>>the vertical crank shaft on mowers. You need a horizontal PTO to drive
>
> the
>
>>>rear axle.
>>>
>>>This brought back a memory where years ago I recall the same problem
>
> being
>
>>>overcome by simply making a drive belt rotate its drive thru 90 degrees.
>
> The
>
>>>belt was long, about 2 feet, but it did work. Ithink it was a large
>
> mower.
>
>>>Sound reasonable,..as long as a jockey wheel was used to stop the belt
>>>chafing where it was close to-gether?
>>>
>>>TIA,..Jason
>>>
>>>
>>
>>I wonder about the longevity of this ?
>>have you considered asking your local dump guys for a right angle drive ?
>
>
> You're dumps sound like they're better than ours. "No scrounging",...a least
> while the Hanmar grader is out of sight!
>
> Jason
>
>
Our dump has "workers", who will sell anything if you wave a gold coin

[Ext User(wilhelm_joseph_wolfendehn@yahoo.com)]

Jason James wrote:
> One of the problems with using a lawn-mower engine to power a go-cart, is
> the vertical crank shaft on mowers. You need a horizontal PTO to drive the
> rear axle.

So is this mower donk a 2 or a 4 stroke? If it's a common Victa 2
stroke, turn the edonk 90 degrees and get on with playing in the dirt.
If it's 4 stroke, stopp pissing about and beg, borrow steal or buy a
horizontal shafted 4 stroke, or go the turned on its side Victa engine
route.
>
> This brought back a memory where years ago I recall the same problem being
> overcome by simply making a drive belt rotate its drive thru 90 degrees. The
> belt was long, about 2 feet, but it did work. Ithink it was a large mower.
> Sound reasonable,..as long as a jockey wheel was used to stop the belt
> chafing where it was close to-gether?
>
> TIA,..Jason

[Ext User(Jason James)]

<wilhelm_joseph_wolfendehn@yahoo.com> wrote in message
news:1125051877.376749.21220@f14g2000cwb.googlegro ups.com...
>
> Jason James wrote:
> > One of the problems with using a lawn-mower engine to power a go-cart,
is
> > the vertical crank shaft on mowers. You need a horizontal PTO to drive
the
> > rear axle.
>
> So is this mower donk a 2 or a 4 stroke? If it's a common Victa 2
> stroke, turn the edonk 90 degrees and get on with playing in the dirt.
> If it's 4 stroke, stopp pissing about and beg, borrow steal or buy a
> horizontal shafted 4 stroke, or go the turned on its side Victa engine
> route.

I've got 2 B&S motors in good nick outa mowers and a Victa with a scored
bore which wont run after its heated up.
I was thinking of usiing the 2 B/S motors for 7hp rocket. Mount the 2 side
by side, run a belt or chain around their 2 CS's and off to a drive
converter, even a diff,..but the whole thing would be too heavy methinks.

The Victa is a good idea mounting wise, plus you get twice the hp. If they
are off around a trail somewhere and the engine snuffs,.you have more chance
with a 4 stroke tho,.in getting it going again.

The other problem with 4 stroke mower engines is their inherant lack of
developed power, plus a splasher lube system which limits revs without
damaging the big-end. I know they can be modified, but then the whole thing
getz expensive.


Jason

[Ext User(FowlFred)]

snip
> The other problem with 4 stroke mower engines is their inherant lack of
> developed power, plus a splasher lube system which limits revs without
> damaging the big-end. I know they can be modified, but then the whole
> thing
> getz expensive.

I built a mini bike many years ago with a B&S 4 stroke. It ran the wrong way
to drive the bike forwards. I modified it to run the "other" way by cutting
the cam shaft in half between the lobes. Rotated one lobe 180 degrees and
re-welded. Altered ignition timing and motor now ran backwards, but the way
I needed to move forwards. It ran fine, but was gutless.

Don't know why I didn't turn the motor around in the frame, but I must of
had a good reason at the time....

[Ext User(kevcat)]

FowlFred wrote:
>
> snip
> > The other problem with 4 stroke mower engines is their inherant lack of
> > developed power, plus a splasher lube system which limits revs without
> > damaging the big-end. I know they can be modified, but then the whole
> > thing
> > getz expensive.
>
> I built a mini bike many years ago with a B&S 4 stroke. It ran the wrong way
> to drive the bike forwards. I modified it to run the "other" way by cutting
> the cam shaft in half between the lobes. Rotated one lobe 180 degrees and
> re-welded. Altered ignition timing and motor now ran backwards, but the way
> I needed to move forwards. It ran fine, but was gutless.


This is how they get Corvair engines to drive VWs

change the cam and distributor and the engine runs in reverse but drives
the car forward, usually just on the back wheels though, extra weight
behind the rear wheels and extra power make for nice wheel stands in a
bug

Kev