Clutch to TAV conversion

[Dmplec]

Trying to figure out the best method to convert from clutch to TAV. I got a Manco Dominator with Robin Subaru 5hp and current clutch with jack shaft set up with band brake. The kart is for the kids and was thinking a TAV would be better than the clutch. Any idea on making this work?

 

[itsid]

you're currently running a 6.9:1 ratio

if you install a TC kit you should keep that ratio
(maybe a little bit higher works, but don't overestimate the margin)

Sa assuming you'll have a 420 chain on there, and the TC will then come default with a 10T sprocket,
you'll want a 69T axle sprocket (65 might work.. 60 might already fail in the long run *shrugs*)

install the TC (and remove the Jackshaft you have)
then line up the new and larger axle sprocket with the TC sprocket and you'd be done.

Problem I'm seeing is, that it's even possible that yoiu cannot fit a larger axle sprocket at all..
in which case you might need to install the TC tilted up and align it's 10T output with your 23T Jackshaft sprocket, to keep that compound gearing you have.

'sid

 

[Dmplec]

While working on the brakes I realized the engine and jackshaft are not one unit. This would allow me to raise the engine up on some blocks and I wouldn't have to tilt the torque converter up at an angle if the bolts don't allow the converter to be angled up.

 

[itsid]

in theory, yes..
but longer bolts to fit the raiser can cause some unwanted side effects (noisy chain thanks t increased play in the engine mount for example)
you might also run out of room for the engine before the TC backplate clears your jackshaft..
But either way... you should be able to install a TC without too much trouble.

'sid

 

[Dmplec]

I have a tendency to over think things. I had another light bulb moment and thought why couldn't I flip the jackshaft from the rear to the front of the engine. This seems like it would resolve any issues with clearance between the jackshaft and torque converter.