1937 BSA y-13 parts source - The Jockey Journal Board

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Old 04-14-2007, 05:25 AM   #1
ironwigwam
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Default 1937 BSA y-13 parts source

I need some help with locating a few parts, rocker box cover and an intake rocker for front cylinder. The top end is going on an Indian scout. Any ideas?
Rocky
1957S/VG
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Old 04-14-2007, 05:54 AM   #2
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Default Re: 1937 BSA y-13 parts source

made a few enquiries, theres supposed to be a guy in Hull in England deals in parts for them I'll try and get a name and number for you
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Old 04-14-2007, 07:13 AM   #3
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Default Re: 1937 BSA y-13 parts source

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Originally Posted by blackbob
made a few enquiries, theres supposed to be a guy in Hull in England deals in parts for them I'll try and get a name and number for you
Black Bob, Sounds good. I tried a source in Manchester, "Lightning Spares" and they just sold last cover two weeks ago.
Rocky
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Old 04-14-2007, 07:21 AM   #4
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Default Re: 1937 BSA y-13 parts source

theres a guy near home in Inverness whose got a Y13 and the earlier Y12 ? and a spare engine - just phoned him but he wont part with anything spares are kinda thin on the ground, i'm still waiting to see if the rest of the Blue Star engine bits materialise

will keep an ear to the ground, are you planning to cast/reproduce this set up for sport scouts or is it a one off deal?
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Old 04-14-2007, 09:36 AM   #5
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Default Re: 1937 BSA y-13 parts source

Black Bob, Its the same set up Al Crocker used to produce his Crocker design. Right now I want to assemble this engine and see the feasibility of the top end with the BSA big end bearings in the scout cases. If the hybrid can take up to 8000 RPM and live then it would be affirnative.
I really didn't want to spend preciuous time casting a rocker cover
Rocky
1957S/VG
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Old 04-15-2007, 04:26 AM   #6
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Default Re: 1937 BSA y-13 parts source

another PIC
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Old 04-15-2007, 09:31 AM   #7
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Default Re: 1937 BSA y-13 parts source

I was talking to a fellow in Colorado that might know something about the Y13 and parts stateside. I'll have to dig out his email and contact him. By the way what scout is this going on, if you don't mind my asking. This idea is awesome and I'd definitely be interested in following.
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Old 04-15-2007, 10:41 AM   #8
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Default Re: 1937 BSA y-13 parts source

At first I bored a set of 41 sport scout cases to accept the cylinder bores for a mock up, figuring on using stock Indian big end bearings or xr-750 big end bearings. Then I was given a set of BSA big end bearings and could see where they had a higher RPM potential if used.
Now I am ready to bore a set of 27 scout cases to fit the cylinders and come up with plugs for the big end and see which set of cases has the better weldability.
I 'll get a PIC up later today.
York, is only an hour away from Spring City, PA
Rocky
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Old 04-15-2007, 12:10 PM   #9
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Default Re: 1937 BSA y-13 parts source

Rocky any reason why you couldnt use B31 heads and barrels? ... much more plentiful over here and a later 1940's 350cc single too
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Old 04-15-2007, 02:58 PM   #10
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Default Re: 1937 BSA y-13 parts source

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Originally Posted by blackbob
Rocky any reason why you couldnt use B31 heads and barrels? ... much more plentiful over here and a later 1940's 350cc single too
Black Bob,
No reason I can think of. Go for it. The y-13 is the basis of the Crocker's and I just happen to have an engine in pieces, although it is the least produced model in BSA's history.
Here is a crude mock up. I need to bore out more for pushrod housings. Of course, we will need a wigwam shaped push rod cover before it is done.
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Old 04-15-2007, 03:21 PM   #11
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Default Re: 1937 BSA y-13 parts source

so are you using a set of Warpath cases for this then?

btw looks fantastic
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Old 04-15-2007, 05:36 PM   #12
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Default Re: 1937 BSA y-13 parts source

That's the plan to use a War Path set of cases eventually. Use stock cases to work out rod length and stroke to use.
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Old 04-20-2007, 02:45 AM   #13
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Default Re: 1937 BSA y-13 parts source

Rocky, have you looked at Cornucoppia? here's a link http://home.arcor.de/cornucopia/indey.html tt
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Old 04-20-2007, 03:48 AM   #14
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Default Re: 1937 BSA y-13 parts source

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Originally Posted by oldgoaly
Rocky, have you looked at Cornucoppia? here's a link http://home.arcor.de/cornucopia/indey.html tt
Oldgoaly, Thanks for thr link, I emailed them, let's see what shakes loose. I could have a cover CNC'ed?
Rocky
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Old 04-20-2007, 07:48 AM   #15
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Default Re: 1937 BSA y-13 parts source

Frank Diehl. He has a listing on Britbike
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Old 04-20-2007, 04:25 PM   #16
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Default Re: 1937 BSA y-13 parts source

Quote:
Originally Posted by orangeamcs
Frank Diehl. He has a listing on Britbike
Orangemcs, I emailed hom. Lets see what happens. If nothing. I a,m going to machine one from billet
Rocky
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