Cant find jackshaft for carter kart anywhere

[firemanjim]

I must have missed something.


I think you are looking at it and not realizing you are over looking one simple fact..... The shaft itself only holds one purpose, and that is to hold the sprockets and allow one to turn the other. The shaft itself can be held in position any number of ways, like c-clips,locking collars, a bolt through the end like yours, or external threaded ends that you just put a nut on, just to name a couple. In you're case, I think the previous owner (or one of them) actually made the shaft himself, as a replacement. He probably already had the right drill bit and tap. (a lot of us do, me included) You're most likely not going to find one like that, that same size. It's not common on karts.
You have a couple options here. I'll list them for you....
First, you can buy a piece of shaft, like in the link previously provided. Go to home depot and buy 2 3/8" bolts like 1/2" long. Buy the 3/8 - 18 (could be wrong on thread count. It's past my bed time... ) tap that is the same thread as the the bolts. Buy 2 of the big diameter washers that have a 3/8" hole. Buy a couple 3/4" ID washers. Now go home and recreate the shaft you have. 3/8" is easier to drill and tap at home and the tap is a lot cheaper that the 5/8" you said you had....
Second..... Buy the shaft. Take old shaft and new one to a small machine shop. Have them drill and tap the same holes you currently have. Should only cost you around $20-30.... Or less....
Third and easiest..... Buy that shaft 2" longer than needed. Put a locking collar on each end and call it a day. In total, with shaft, you're looking at maybe $25........ And no headache.....
So, , what route do you think you will take? If you have a mechanic friend, he might have a tap and drill bit you could borrow.......

 

[Poboy kartman]

You didn't miss anything important....

 

[nick9882]

I must have missed something.


I think you are looking at it and not realizing you are over looking one simple fact..... The shaft itself only holds one purpose, and that is to hold the sprockets and allow one to turn the other. The shaft itself can be held in position any number of ways, like c-clips,locking collars, a bolt through the end like yours, or external threaded ends that you just put a nut on, just to name a couple. In you're case, I think the previous owner (or one of them) actually made the shaft himself, as a replacement. He probably already had the right drill bit and tap. (a lot of us do, me included) You're most likely not going to find one like that, that same size. It's not common on karts.
You have a couple options here. I'll list them for you....
First, you can buy a piece of shaft, like in the link previously provided. Go to home depot and buy 2 3/8" bolts like 1/2" long. Buy the 3/8 - 18 (could be wrong on thread count. It's past my bed time... ) tap that is the same thread as the the bolts. Buy 2 of the big diameter washers that have a 3/8" hole. Buy a couple 3/4" ID washers. Now go home and recreate the shaft you have. 3/8" is easier to drill and tap at home and the tap is a lot cheaper that the 5/8" you said you had....
Second..... Buy the shaft. Take old shaft and new one to a small machine shop. Have them drill and tap the same holes you currently have. Should only cost you around $20-30.... Or less....
Third and easiest..... Buy that shaft 2" longer than needed. Put a locking collar on each end and call it a day. In total, with shaft, you're looking at maybe $25........ And no headache.....
So, , what route do you think you will take? If you have a mechanic friend, he might have a tap and drill bit you could borrow.......

Im going to go the route of buying a longer shaft and using collars to hold everything in place. I understand what you mean about tapping the ends. I am a mechanic and own a tap set. But I have only used it to repair expensive parts. I have always figured a cheap part just gets replaced.

 

[Poboy kartman]

Im going to go the route of buying a longer shaft and using collars to hold everything in place. I understand what you mean about tapping the ends. I am a mechanic and own a tap set. But I have only used it to repair expensive parts. I have always figured a cheap part just gets replaced.

Well....I know what you are saying.....but....if your taps are quality....then it costs nothing to use them....(other than maybe some cutting oil)....and I usually don't even bother...just back off often to clear chips....

So....it really comes down to what you have to work with...how easy it is to find a "drop in replacement "...how cheap that is vs. your time and labor....

Both definitely have their pro's and con's.....I was just prodding you a bit....to get you to think about the alternative route of fabricating your own....

Noone here....myself included...was trying to say there was anything wrong with NOT fabricating your own.....we were just trying to point out it's a feasible alternative.....

We want to know the location of members....because it helps us give the best information on parts location.....and ...more than once....it has turned out there was a nearby member willing to supply needed parts for nothing.....

But....that doesn't happen...if we don't know where you are.....

At the end of the day......we are all here just to help....and ....after just a little while here....you will see that.....

This is a forum full of awesome.....great folks.....but there's always room for one more: to the forum!!!!