shaft size adapter

[KrashnKraka]

? ? ?

Okay..try this on.
Where the drive pulley sits in relation to how/where an adaptor
sits on the new engine shaft is maybe critical to retain drive belt
alignment when the modded 'shaft/adaptor' is fitted.
A machinist would need to know the distance from base plate
to centre of drive belt pulley ("V") to be able to build the adaptor
"connection length".
The adaptor, after the drive pulley, will carry the clutch pack
and thereby the blade belt pulley, as per the original design.
So you would need to provide the machinist with the measure
for the length of the adaptor required to also mount the clutch pack.

Clearer?

KK

 

[Carscw]

Okay..try this on. Where the drive pulley sits in relation to how/where an adaptor sits on the new engine shaft is maybe critical to retain drive belt alignment when the modded 'shaft/adaptor' is fitted. A machinist would need to know the distance from base plate to centre of drive belt pulley ("V") to be able to build the adaptor "connection length". The adaptor, after the drive pulley, will carry the clutch pack and thereby the blade belt pulley, as per the original design. So you would need to provide the machinist with the measure for the length of the adaptor required to also mount the clutch pack. Clearer? KK

I get what you are saying now.
But the clutch on most mowers can be a little high or low.
Mine now sits 1 inch lower then it did. My deck has a 4 inch travel. So the pulleys are never inline with the clutch.

Now my hydro drive pulleys had to line up dead on. No room for error with them short belts.

What I did was cut the end of the shaft off the old engine. And used a hub to connect it to the new shaft. Got lucky and my bolt was long.

 

[KrashnKraka]

....excellent outcome!

KK
/out