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I have a 34 HD VD that I am getting ready to sell. I'm kind of an Indian guy so this thing is the odd man out in my garage. Also and red blooded Indian rider will tell you that clutch is ass-backwards and I don't even want get into what possessed them to put the front brake lever on the left. Now to get down to my dilemma, while fixing a transmission leak I discovered that the key way in drive pinion has broken out. Now I have no issues with the engine it runs fine and I am loathed to tear down an otherwise perfectly good motor. My plan is to remove the motor from the frame and set it up in my mill and recut a new keyway 180 degrees from the original. I don't have any problem doing this for myself. The new keyway and key will be as good as new. My hesitation comes from putting it on the market, I don't want anyone to think I'm pulling a fast one. What do you think?
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Bill!
Matched tapers hold themselves, like a nail in oak, even if there's splinters.
Keys are either for indexing, or to pacify.
(Lapping tapers is always a good idea, of course!)
....Cotten
PS: If you take it apart, its broken.Last edited by T. Cotten; 07-21-2018, 04:58 PM.AMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find! -
Good point Mr. Cotton, I shall break out the dye and the lapping compound.Comment
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Meanwhile, just for conversation, Folks...
Anybody else taught that nuts were just assembly aids, and could be removed with full integrity of the 'set' tapers?
Thanks in advance,
....CottenAMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find!Comment
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Cotton If you want to try that theory please don't use my motor.
Originally posted by T. Cotten View PostComment
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Nobody's got the guts to try it, Jerry!
But notice how tapered assemblies are often so secure they are testy to split, yet the nut is on the bench?
It ain't the nut.
....CottenAMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find!Comment
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I've found nuts that were welded, Jerry!Originally posted by Jerry Wieland View Post
More 'insurance', or paranoia?
....CottenAMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find!Comment
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I used to finish grind internal taper bores, when there right the gage is stuck with a 1/4 turn.Comment
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In my opinion, the nut is mainly used to draw the tapers together better.Comment
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Jacobs tapers, and Morse tapers come loose with some regularity on lathes, and drill presses. That's not a problem. A popped taper on a pinion gear in a motor. . . That's a p.i.t.a., and a problem.Eric Smith
AMCA #886Comment
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It takes shock to release a taper, Eric!Originally posted by exeric View Post
(Or maybe your machinery is shot.)
If you've got that kind of shock on a pinion, something else broke first.
The tapers that experience the most shock are transmission mainshafts with opposing chain stresses;
The nut saves it long enough to do real damage.
....Cotten
PS: Yes, Pa!
The nuts' primary function is for assembly, as it becomes a screwpress.
PPS: Absolutely, Rudy!
I did it religiously: http://virtualindian.org/10techfly.htmLast edited by T. Cotten; 07-26-2018, 08:26 AM.AMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find!Comment
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I've seen a Harley, and an Indian with sheered pinion gear keys. The life of a motor is nothing but shock, and torture; and if a motor will sheer a key, a taper doesn't stand a chance. But, as Jerry said, you can do whatever you want with your motor. I'll go with the belt, and suspender route, as per factory engineering.Originally posted by T. Cotten View PostEric Smith
AMCA #886Comment
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Eric!Originally posted by exeric View Post
Indian pinion gears aren't tapers.
No collateral damage on the HD?
I've seen plenty of destroyed tapers, but blaming the taper is like blaming a piston for a hole in it.
....Cotten
PS: Suspenders and a belt would be to weld it.Last edited by T. Cotten; 07-26-2018, 10:21 AM.AMCA #776
Dumpster Diver's Motto: Seek,... and Ye Shall Find!Comment
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I knew better than to respond to this nonsense.Eric Smith
AMCA #886Comment
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