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Cub Crankshaft Gear
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- 10+ Years
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Cub Crankshaft Gear
Without getting into the timing issues--Can the crankshaft gear be reversed? Reason: Chipped tooth on front face of gear that would not matter if gear was reversed on crankshaft. (If not, see wanted in the Vine).
- Rick Spivey
- Cub Pro
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Re: Cub Crankshaft Gear
I think yes, but I don't have a loose one to look at and be sure.
Rick Spivey
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)
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- 10+ Years
- Posts: 3034
- Joined: Wed May 31, 2006 12:09 pm
- Zip Code: 74070
- Circle of Safety: Y
- Location: OK, Skiatook
Re: Cub Crankshaft Gear
Upon further examination and testing, the crank gear could be reversed provided an identical chamfer is machined into the back side of the gear. With that in mind I will be searching for a replacement.
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- 10+ Years
- Posts: 3034
- Joined: Wed May 31, 2006 12:09 pm
- Zip Code: 74070
- Circle of Safety: Y
- Location: OK, Skiatook
Re: Cub Crankshaft Gear
FWIW Serious testing and measuring precludes reversing the crank gear due to the helical cut gear teeth. Reversing the gear and aligning it with the cam/idler gears leaves the keyway for the crank gear a few degrees from where it should be, interfering with proper timing. (Live and Learn)
- Rick Spivey
- Cub Pro
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- Joined: Sun Jul 01, 2007 10:07 pm
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- Location: SC, Cades 29518
Re: Cub Crankshaft Gear
I thought about that after my reply, but still didn't have one to confirm whether the keyway was centered to the helix or not. Thanks!
Rick Spivey
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)
- randallc
- Cub Pro
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Re: Cub Crankshaft Gear
Good information Bill.
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