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Swapping single cylinder to V-Twin

#1

LaWn GuY

LaWn GuY

My little Weed Eater tractor Is going on It's third engine. Factory engine was a 13 hp Tecumseh OHV. Had too many problems and was cheaper to have the shop put another used engine In. So they put In a 12 hp B&S flat head. Well this engine Is throwing heavy metal In It's oil and has always ran rough ever since I've had It. So I found a 14 hp B&S Vanguard V-Twin that Im gonna swap In. Im assuming It should be pretty easy. The tractor Is like new with zero rust. How hard does this sound like?


#2

Scrubcadet10

Scrubcadet10

Important things when swapping an engine.
Mounting bolt configuration (mostly standardized)
Crankshaft PTO length and diameter
And wiring.


#3

7394

7394

What he said.......:thumbsup:


#4

B

bertsmobile1

When I fit V twins to mowers that used to run flat head engines, I often have to install them sideways because they foul on the hood.
Then it is a chop & weld jobbie on the exhausts.
On most side valve singles the exhaust blows strait out the side of the hood
On V twins it blows down & most have a purpose built muffler under the front of the mower.
A customer who drives big rigs, fixed this problem by fitting a pair of chrome stacks cobbled together from some old motorcycle exhausts.
He has a HD and gets std pipes pulled off new bikes really cheap.
The finishing touch was painting the hood yellow and sticking a Cat decal on the sides


#5

7394

7394

bertsmobile1 said:
When I fit V twins to mowers that used to run flat head engines, I often have to install them sideways because they foul on the hood.
Then it is a chop & weld jobbie on the exhausts.
On most side valve singles the exhaust blows strait out the side of the hood
On V twins it blows down & most have a purpose built muffler under the front of the mower.
A customer who drives big rigs, fixed this problem by fitting a pair of chrome stacks cobbled together from some old motorcycle exhausts.
He has a HD and gets std pipes pulled off new bikes really cheap.
The finishing touch was painting the hood yellow and sticking a Cat decal on the sides
Click to expand...

Bert- That sounds like a winner to me. I actually was thinking of adding stacks on my Kawasaki V2 /powered Toro.

I do have ample old HD exhausts.........


#6

Scrubcadet10

Scrubcadet10

7394 said:

Bert- That sounds like a winner to me. I actually was thinking of adding stacks on my Kawasaki V2 /powered Toro.

I do have ample old HD exhausts.........
Click to expand...
When the hearing starts to go you need to make em louder:laughing::cool2:


#7

7394

7394

True enough. :laughing:


#8

PTmowerMech

PTmowerMech

bertsmobile1 said:
When I fit V twins to mowers that used to run flat head engines, I often have to install them sideways because they foul on the hood.
Then it is a chop & weld jobbie on the exhausts.
On most side valve singles the exhaust blows strait out the side of the hood
On V twins it blows down & most have a purpose built muffler under the front of the mower.
A customer who drives big rigs, fixed this problem by fitting a pair of chrome stacks cobbled together from some old motorcycle exhausts.
He has a HD and gets std pipes pulled off new bikes really cheap.
The finishing touch was painting the hood yellow and sticking a Cat decal on the sides
Click to expand...

Disregard the political sticker. (Not my mower) But if this can be done, then just about anything else can be done (to a mower)
https://www.facebook.com/video.php?v=1116632571874939


#9

Scrubcadet10

Scrubcadet10

Wow.... That's pretty cool
(y)


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