170 conversion long to standard shaft
Posted: Thu May 06, 2021 3:50 am
Hoping to convert a 170 from long shaft to standard on a budget (if possible) and need a bit of help please.
There are 6 parts I can see that need shortening:
1 exhaust tube assembly
2 Silencer tube
3 water delivery pipe
4 gear selector rod
5 drive shaft
6 drive shaft casing
First 3 I think I can cut to length, absent objections otherwise.
Gear selector rod I can cut but would have to rethread that and the yoke to metric/imperial as I don’t have whitworth tap/die. Not ideal for the yoke but could also probably find/make a replacement with relative ease if there is not enough thread/metal in existing one to retap.
Drive shaft needs to shorten by 6 inches, can I simply cut the existing one? I have read on the forum that later shafts can have hardened ends etc which I assume I wouldn’t want to completely
remove, but not sure if the 170 falls into this category or if there are any other issues cutting this shaft. If cutting 6” off isn’t a good idea, I can’t seem to find a standard shaft 170 replacement. But would a standard kingfisher/osprey shaft fit the crank/pinion sleeve? Looks like I would only have to take 1/8” off of one of those and they’re more readily available.
For the drive shaft casing, converting existing one definitely not easy or economical for me. So wondering if there are substitutes from other models that would fit without modification? Perhaps EFNR? I would need it to be about 17.25” give or take a bit, I can always adapt first 5 items to fit the shaft casing if it’s close enough to what I’m hoping for.
Thanks for the feedback.
There are 6 parts I can see that need shortening:
1 exhaust tube assembly
2 Silencer tube
3 water delivery pipe
4 gear selector rod
5 drive shaft
6 drive shaft casing
First 3 I think I can cut to length, absent objections otherwise.
Gear selector rod I can cut but would have to rethread that and the yoke to metric/imperial as I don’t have whitworth tap/die. Not ideal for the yoke but could also probably find/make a replacement with relative ease if there is not enough thread/metal in existing one to retap.
Drive shaft needs to shorten by 6 inches, can I simply cut the existing one? I have read on the forum that later shafts can have hardened ends etc which I assume I wouldn’t want to completely
remove, but not sure if the 170 falls into this category or if there are any other issues cutting this shaft. If cutting 6” off isn’t a good idea, I can’t seem to find a standard shaft 170 replacement. But would a standard kingfisher/osprey shaft fit the crank/pinion sleeve? Looks like I would only have to take 1/8” off of one of those and they’re more readily available.
For the drive shaft casing, converting existing one definitely not easy or economical for me. So wondering if there are substitutes from other models that would fit without modification? Perhaps EFNR? I would need it to be about 17.25” give or take a bit, I can always adapt first 5 items to fit the shaft casing if it’s close enough to what I’m hoping for.
Thanks for the feedback.