Torque Converter question Comet 40/44
- Thread starter PaulK
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KartFab
Active member
yes http://www.bmikarts.com/pdf/comet_40series.pdf There are two different size driven pulleys with the 40/44 series as well. I would imagine they both work.
They're on the way. Expected delivery next Monday.
I'll find out soon enough, I guess, but would any of you be able to give me a preview of the types of problems (if any) I'm likely to run into when trying to swap for a 30 series?
I'd really love it to be a direct bolt on but somehow I figure that's a pipe dream.
I'll find out soon enough, I guess, but would any of you be able to give me a preview of the types of problems (if any) I'm likely to run into when trying to swap for a 30 series?
I'd really love it to be a direct bolt on but somehow I figure that's a pipe dream.
KartFab
Active member
Belt is different. Center to center distance will have to be exact. Inboard/outboard mounting position of driven unit must match the spring on the driven unit. Andddd.. inboard outboard position affects where the jackshaft shoulder/bearing goes.
Got the belt covered but my bigger fears turned out to be justified.
Both pulleys are wider (or deeper) than the 30 series.
So the questions become, can I just get a longer bolt for the driver (an extra 7/8 in or so)? Looks like it's a 5/16 in bolt. So you'd end up with about 2 in of crankshaft plus almost 2 in of 5/16 in diameter bolt. That may be asking a lot of the bolt even if it's a Grade 8.
Does that have any chance of working?
If not, can I get a predator crankshaft that's longer? I haven't seen one for sale anywhere.
In the same way, I guess I need to get a longer jackshaft? Or maybe they don't sell such a thing for the same reason as above and I'd need to get a beefier jackshaft?
Actually, I think I see a longer jackshaft for sale on BMIKarts so maybe that just leaves the driver pulley as the main problem.
Both pulleys are wider (or deeper) than the 30 series.
So the questions become, can I just get a longer bolt for the driver (an extra 7/8 in or so)? Looks like it's a 5/16 in bolt. So you'd end up with about 2 in of crankshaft plus almost 2 in of 5/16 in diameter bolt. That may be asking a lot of the bolt even if it's a Grade 8.
Does that have any chance of working?
If not, can I get a predator crankshaft that's longer? I haven't seen one for sale anywhere.
In the same way, I guess I need to get a longer jackshaft? Or maybe they don't sell such a thing for the same reason as above and I'd need to get a beefier jackshaft?
Actually, I think I see a longer jackshaft for sale on BMIKarts so maybe that just leaves the driver pulley as the main problem.
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