Well no luck online or locally finding a 20mm x 1.0mm nut.
Closest was 20 x 1.5.
I guess I will have to clean up the original and devise a method to tighten it.
Thread locker and a brass punch, or perhaps try to cut a large socket to fit.
That crankshaft lock washer...
OK It ain't pretty.
In fact - kinda ugly.
But it has "functional beauty". I think it worked.
Basically a scrap of steel pipe, Dremel, files, and some "retirement" hours.
I tossed the mangled tab washer and used some thread locker.
Fingers crossed.
In fact - kinda ugly.
But it has "functional beauty". I think it worked.
Basically a scrap of steel pipe, Dremel, files, and some "retirement" hours.
I tossed the mangled tab washer and used some thread locker.
Fingers crossed.
- Attachments
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- crank tool 001.JPG (126.87 KiB) Viewed 1498 times
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- crank tool 003.JPG (153.92 KiB) Viewed 1498 times
R100
Great job! It's always satisfying to make a tool that does the job in a controlled way rather than just whacking the part with a hammer and drift. I have a number of those crank nuts which have been butchered in the past and I am preparing to make a threaded fixture (hence the M20 x 1.0 die) for my lathe.
I made a similar tool by grinding a 1/2 drive socket. No prettier than yours but easier to get a torque wrench on.....
This came my way with a genuine Honda workshop tool kit.....


This one is marked for the S90 but fits the CB72 crank nut perfectly.
G
Great job! It's always satisfying to make a tool that does the job in a controlled way rather than just whacking the part with a hammer and drift. I have a number of those crank nuts which have been butchered in the past and I am preparing to make a threaded fixture (hence the M20 x 1.0 die) for my lathe.
I made a similar tool by grinding a 1/2 drive socket. No prettier than yours but easier to get a torque wrench on.....
This came my way with a genuine Honda workshop tool kit.....


This one is marked for the S90 but fits the CB72 crank nut perfectly.
G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F