Author Topic: Gear box sprocket for a 59 Chief  (Read 7711 times)

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59 chief

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on: January 24, 2014, 12:06:17 am
Doe's anyone know where I can get a gear box sprocket for a 59 indian chief? I'm told it was made only for the Chief. I bought one from Hitchcocks and it won't work. I have pic of this rear bird. It has worn teeth and one tooth is chipped. There's 20 teeth. I can email more pics. the file was to large.


« Last Edit: January 24, 2014, 12:12:06 am by 59 chief »


High On Octane

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2001 Harley Davidson Road King


59 chief

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Reply #2 on: January 24, 2014, 12:16:22 am
They said they don't have one for the Chief. I sent them pics and they said they dicontinued.


High On Octane

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Reply #3 on: January 24, 2014, 12:25:34 am
Ummmmmmmm.......    ???

I'm not sure who you talked to but ALL the gear box sprockets are the same.  Compare the pic you just posted to the pic they have posted on the link I posted previously.  They're identical.  You will want to order either a 21 tooth or a 22 tooth as the 16" Chief wheel make the gearing extra short.

Scottie
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59 chief

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Reply #4 on: January 24, 2014, 12:37:55 am
This is the difference in the one they sent me(Marked new) and the one I need.(marked old) Hitchcocks said they have H 49/20 and I need M 49/20
« Last Edit: January 24, 2014, 12:56:11 am by 59 chief »


rotorwrench

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Reply #5 on: January 24, 2014, 01:14:12 am
The Chief was the only big twin to have the 16-inch rims with the big tires. This is likely why it is spaced that far out. It seems I've heard someone mention this on either this site or the Britbike site before. There may be some out there but it will take some time to track an original down. It might be easier to check with a machine shop to see if they can whittle one out and get it heat treated to last a while. It's good you have an OEM part for a pattern. I see a lot of Albion gearboxes for Enfields on the flea pay but you will have to look for the AM series and see if it still has a sprocket thats not worn down too much. Only the Chiefs and the Apaches used the AM gearbox. Most Enfield twins use the H series Albion box. You can tell them apart by the shift cover shape.


High On Octane

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Reply #6 on: January 24, 2014, 01:23:55 am
Oh man.  Am I going to have this problem with my Chief?  Can a spacer be made to be used with the standard sprocket?

Scottie
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59 chief

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Reply #7 on: January 24, 2014, 01:35:26 am
I asked a shop with high tech equipment for an estimate to make one and they said $350. Each additional one was like $40.


High On Octane

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Reply #8 on: January 24, 2014, 02:14:13 pm
I know that there are at least 3 of us restoring a 59-60 Chief right now.  Maybe we can work out a group buy for those sprockets?  ???

Scottie
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ERC

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Reply #9 on: January 24, 2014, 02:34:03 pm
I just went out into the shop and looked at a Chief box and sprocket didn't stay to long very cold. But I don't see why you can't have a spacer made to use the new sprocket.  ERC
2-57 Apaches, 2-57 Trailblazers, 60 Chief, 65 Interceptor, 2004 Bullet, 612 Bullet chopped.


High On Octane

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Reply #10 on: January 24, 2014, 03:28:41 pm
ERC - Does it look like you can just use a large steel bushing without the splines?

Scottie
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ERC

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Reply #11 on: January 24, 2014, 03:47:46 pm
Hi Scottie, It's to cold to go out  and compare but I'm pretty sure as long as the outside diameter is the same size and it fits the shaft tight.   ERC 
2-57 Apaches, 2-57 Trailblazers, 60 Chief, 65 Interceptor, 2004 Bullet, 612 Bullet chopped.


ERC

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Reply #12 on: January 24, 2014, 04:26:41 pm
They make a spacer for the gearbox sprocket on the new 4sp that may work.  ERC
2-57 Apaches, 2-57 Trailblazers, 60 Chief, 65 Interceptor, 2004 Bullet, 612 Bullet chopped.


Sandgroper

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Reply #13 on: January 24, 2014, 05:29:47 pm
The standard H49 type sprocket will not fit an AM gearbox, which requires an  M49 sprocket. This has a larger internal bore, with different splining, to suit the different mainshaft sleeve in the AM. There is also a deeper recess on the front face of the sprocket to allow the securing nut to fit properly.
The current RE price list on the Burton Bike Bits website shows the M49/20 as available, but I have not asked them directly.
The 16" wheel doesn't overly affect the gearing as the diameter over the fat tyre is about the same as that on the larger-rimmed wheels used on other models.
Incidentally, only some of the Apaches used the AM 'box, others had the 'standard' Albion.


59 chief

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Reply #14 on: January 25, 2014, 03:34:46 am
Sandgroper is correct. There is 6 splines on the original sprocket and 5 splines on the new one. So a bushing(or spacer) wouldn't work. I asked Burton bike and they said they don't have it either.
« Last Edit: January 25, 2014, 05:46:22 am by 59 chief »