Whats the thread type on the cranksaft end? By twowheeler (Read 379 times)

[twowheeler]

My variator nut is going on and off a bit more difficult as of late. I ordered a new nut but want to clean up the threads. Is it called a chaser that i need? If so what size?

[Alleyoop]

17mm 1.5

[twowheeler]

WOW now to find one....wonder if i get a good steel nut from the hardware store and use that to chase the thread? That variator nut doesnt look very beefy.

[scatterbrained]

Make sure you don't use a cutting die to chase the threads unless you have used them before. It's very easy to change the set of the threads and the nut will be lose and sloppy and you run the risk of pulling the threads when you torque it down. I would use a thread file if you have access to the threads.

[twowheeler]

Thread file?

[tvnacman]

Is it a 50 or 150cc

John

[twowheeler]

50

[scatterbrained]

A thread file is a small file used to fix imperfections in the thread profile. You can also use a small triangle shaped rat tail file. Thread file at Sears or another tool supply. Rat tail file at lowes or Home Depot .

[tvnacman]

Jan 9, 2014 6:57:51 GMT -6 scatterbrained said:

A thread file is a small file used to fix imperfections in the thread profile. You can also use a small triangle shaped rat tail file. Thread file at Sears or another tool supply. Rat tail file at lowes or Home Depot .

Takes a fine touch and a good eye .

John

[scatterbrained]

John is correct. You MUST take your time. If the nut is still threading on the shaft then it should not take much dressing with a file. If you inspect the threads very closely then you will prob find the bad spot. Good luck and take your time.

[twowheeler]

Its actually a 12mm x 1.25

[Alleyoop]

Oh yours is a little 50cc I thought it was a 150cc.
Alleyoop

[twowheeler]

I ordered this

www.amazon.com/12mm-Carbon-Steel-Hex-Rethreading/dp/B0007CNJ0O/ref=pd_sxp_grid_i_0_0