Rupp Roadster Torque Converter and HS40 crankshaft length

[creia]

The original HS40 engines on these bikes had the longer 3" PTO end on the crankshaft to accommodate the TC driver. Has anyone ever used a "regular" HS40 with the 2.25" PTO end and converted/modified it to work with the TC driver? Do you fabricate and add some sort of spacer on the end of the crank? I would be very interested and appreciative on how you did it.:smile:
Michael

 

[Mark G]

No need for a spacer, just use a longer bolt with a washer on the end:thumbsup:

 

[creia]

Thanks Mark!
Michael

 

[ole4]

I've used a 3/4 " tq shaft with keyway cut off a piece to correct length and drilled it out to 5/16hts used it as a spacer to take up the empty space.