Author Topic: Roller detent plunger measurement.  (Read 915 times)

Offline coater87

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Roller detent plunger measurement.
« on: 26.02. 2016 22:49 »
 I remember there was a site that had plans to build a roller detent plunger for the gearbox.

 Does anyone have a link to that site or can post the plans?

 I am so deep into this gearbox now, I might as well go all out.

 Lee
Central Wisconsin in the U.S.

Online muskrat

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Re: Roller detent plunger measurement.
« Reply #1 on: 27.02. 2016 03:32 »
G'day Lee.
Found it. http://bsa-a10.hailwood.com/bsaimprovements.html
Have a good look at all the other info.
Cheers

RIP Bill, your knowledge is still (and always) serving BSA riders world wide.

'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7

Online bsa-bill

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Re: Roller detent plunger measurement.
« Reply #2 on: 27.02. 2016 09:23 »
I have had one of these installed for yonks,
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline olev

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Re: Roller detent plunger measurement.
« Reply #3 on: 28.02. 2016 12:20 »
I have had one of these installed for yonks,
and???
was it worth the effort??
cheers

Online orabanda

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Re: Roller detent plunger measurement.
« Reply #4 on: 28.02. 2016 12:45 »
They work for me!!!

Online bsa-bill

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Re: Roller detent plunger measurement.
« Reply #5 on: 28.02. 2016 16:35 »
Quote
I have had one of these installed for yonks,
and???
was it worth the effort??

OOPS sorry don't know why I left that, as it was,(not making much sense).
Right it works perfectly and I think you can put a bit more tension on the spring without making the change clunky.
Would like one for my other bike but haven't seen them advertised since I bought the first one, run's in my mind it came from Australia.
Just re read Musky#s post, would Beeza Bill be the originator
Yes ideal time to install one if your in there, I've a spare box I want to rebuild so might do it up over the summer and put one in if they ever appear again
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline duTch

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Re: Roller detent plunger measurement.
« Reply #6 on: 03.03. 2016 12:10 »

 For what it's worth, the other day I pulled the guts out of the box I'm running to replace a kick-return spring and investigate other stuff that will eventually surface elsewhere, and I've I think confirmed as I've suspected that it's an early box, and the detent plunger has a 'chisel' type profile, as opposed to a 'point' profile...as per pic.

  I'm unsure if this is better or not *dunno*
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia