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The BSA A7 & A10 Forum > Technical > A7 & A10 Engine > Mystery Addition
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Author Topic: Mystery Addition  (Read 378 times)
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kiwipom
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« on: 29.10. 2011 09:41 »
hi guys,came across this in the classic motor cycle mag, it is the raffle of a 63 RGS picture, can anyone tell me what the bulge and pipe is that is on the timing side case,cheers BoB,

* rgs raffle prize 1.jpg (78.31 KB, 260x310 - viewed 88 times.)
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A10.G.Flash(cafe racer)Honda 250 vtr. Yamaha Virago XV920.

War! what is it good for?Absolutely nothing, Edwin Star.
bsa- bill
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« Reply #1 on: 29.10. 2011 10:28 »
My guess is a timing side bush conversion, first time I've seen one with a outer cover modification though , anybody know if this was a purpose cast cover or had the lump welded in?
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All the best - Bill
LJ.
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« Reply #2 on: 29.10. 2011 11:02 »
I reckon it could be for a home made oil pressure gauge as its so close to the pump. Looks a little low to have any connection to the timing bush.
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Ride Safely Lads! LJ.
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muskrat
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« Reply #3 on: 29.10. 2011 11:37 »
I'm inclined to go with Bill and LJ. Timing side bearing and OP gauge. With a tacho drive there it would be hard to get to the OPR valve for a gauge, but looking at the plumbing his gauge must be the size of a Vincent speedo. eek
Cheers
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Only young once, immature forever. Now how can I make this go faster. '51 A7 plunger, '57 A7SS now A10, '71 A65 Lightning (gone to god) '76 XT500, '83 CB1100F, next project a '64 A65.
Triton Thrasher
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« Reply #4 on: 29.10. 2011 12:11 »
Quote from: muskrat on 29.10. 2011 11:37
looking at the plumbing his gauge must be the size of a Vincent speedo. eek
Cheers

You'd use plumbing that size for an oil filter between the pump and the crank feed.
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bsa- bill
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« Reply #5 on: 29.10. 2011 12:26 »
I have two books of tickets for this raffle, must get them sent off (I'll take the cover off and let you know what it is when I win it whistle)
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All the best - Bill
kiwipom
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« Reply #6 on: 29.10. 2011 22:47 »
hi guys/Bill, yes i sent my details to get some tickets but looks like they don`t send them to NZ, however Bill, do let us know when you win it, cheers,Bob
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A10.G.Flash(cafe racer)Honda 250 vtr. Yamaha Virago XV920.

War! what is it good for?Absolutely nothing, Edwin Star.
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