Author Topic: A10 new restoration, ID engine & frame  (Read 2351 times)

Online Topdad

  • bob hebdon
  • Wise & Enlightened
  • *
  • Join Date: May 2011
  • Posts: 2268
  • Karma: 32
  • l
Re: A10 new restoration
« Reply #30 on: 04.04. 2016 15:32 »
The cable would be for a 7"full width hub , the single sided with rod was used by the RGS and gold stars , I've had one similar on a plunger and it was way way better than my present full width one, however I don't think they are interchangeable without a fair amount of work. The kink in the frame will impress a lot of people by the way. cheers Bob
" rules are made for the guidance of wise men and the blind obediance of fools"
United Kingdom

Online chaterlea25

  • Wise & Enlightened
  • *
  • Join Date: Jun 2009
  • Posts: 3378
  • Karma: 48
Re: A10 new restoration
« Reply #31 on: 04.04. 2016 21:31 »
Hi All,
All the single cylinder  B and M series models have the kink to clear the oil pump bump on the crankcases
rigid, plunger and swing arm frames.
Twiin engines fit  the single frame but not the other way round

The crossover cable brake will be the standard for 58, same as A7/10
The swing arm and  spindle for the 54/55 twins and singles, Goldies and RGS with QD wheel is different to the
Ariel hubbed and full width iron hub models which are also different to each other
The holes in the frames for the swingarm spindle are different 
the hollow swingarm spindle for crossover brake is a larger diamater

John
1961 Super Rocket
1963 RGS (ongoing)

Offline KiwiGF

  • Last had an A10 in 1976, in 2011 it was time for my 2nd one. It was the project from HELL (but I learned a lot....)
  • Wise & Enlightened
  • *
  • Join Date: Feb 2011
  • Posts: 1530
  • Karma: 13
Re: A10 new restoration
« Reply #32 on: 05.04. 2016 07:01 »
Yes, I've heard of people using b31 /b33 frames , they may have been a bit cheaper once . I don't know about the kink I thought standard B frames didn't have the kink which I believe was for the goldies but I could be way of ,which rear brake do you have ,if it's single sided then you could be on your way to a RGS replica , fingers crossed, Bob.

I stand to be corrected but isn't it an "urban myth" that the RGS had kinked frames? Arising out of a (wrong) belief the RGS frame was a goldie one but with a RGS frame number?

There is nothing wrong with having a b31 frame with an a10 engine, after all most of us have "bitsa's" to some extent or another, but, re-registration (if needed) might get tricky in the uk as the tendency is to base the bikes identity on the frame not the engine?

Ps: I'm not responsible for any frame swapping in the seventies  *pull hair out* the frame was one of the few parts of my super rocket I did not mess with!



New Zealand

1956 A10 Golden Flash (1st finished project)

1949 B31 rigid “400cc hot rod” (2nd finished project, + favourite bike)

GL1800 Goldwing, well, the wife likes it

KTM 950 ADV, cos it’s 100% nuts

1952 Armstrong Siddeley Whitley for rainy days (with wife)

Online Butch (cb)

  • Wise & Enlightened
  • *
  • Join Date: Aug 2010
  • Posts: 1574
  • Karma: 15
Re: A10 new restoration
« Reply #33 on: 05.04. 2016 13:25 »
My frame didn't match the V5, but it does now. I'm out in Essex so not a million miles from London. But as folks here will attest from my more usual input to this forum; pretty much of no use to anyone I'm afraid.

This is shaping up as a real interesting sounding project though. 
Warning - observations made by this member have a 93% unreliability rating.

Of Bikes; various, including ...
'58 Iron Head Flash Bitza


Offline polly

  • A's Best Friend
  • ***
  • Join Date: Apr 2016
  • Posts: 139
  • Karma: 0
Re: A10 new restoration
« Reply #34 on: 05.04. 2016 13:40 »
MY frame matches the V5 .sent off for change of keeper.  It has it as correct a 58 bsa...I think from what im learning the engine might be later [who knows with its jumbled numbers ]. Obviously the previous owner was trying to put together something special .

No MOT nor tax needed and Im still interpreting the boxes of spares I got .

Online RichardL

  • Outside Chicago, IL
  • Wise & Enlightened
  • *
  • Join Date: Nov 2007
  • Posts: 5270
  • Karma: 50
Re: A10 new restoration
« Reply #35 on: 05.04. 2016 14:06 »
If my guess for the engine is correct, that is, a '56, the story might include a crash and a frame replacement. That's what one would find if tracking the story of my bike, with a '55 engine (and other running gear) in a '61 frame.

Richard L.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020. This year it's a solo or pillion ride in dapper attire. Watch website at https://www.gentlemansride.com for details.


Offline polly

  • A's Best Friend
  • ***
  • Join Date: Apr 2016
  • Posts: 139
  • Karma: 0
Re: A10 new restoration
« Reply #36 on: 05.04. 2016 14:22 »
Yes Richard A very lightly scenario. I expect I will never know . 

Online RichardL

  • Outside Chicago, IL
  • Wise & Enlightened
  • *
  • Join Date: Nov 2007
  • Posts: 5270
  • Karma: 50
Re: A10 new restoration
« Reply #37 on: 05.04. 2016 14:42 »
I know about mine because I was on it in '79 when it decided to broadside a car that made a left (imagine "right", of course) in front of me. Back then, it didn't know better.

Richard L.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020. This year it's a solo or pillion ride in dapper attire. Watch website at https://www.gentlemansride.com for details.


Offline polly

  • A's Best Friend
  • ***
  • Join Date: Apr 2016
  • Posts: 139
  • Karma: 0
Re: A10 new restoration
« Reply #38 on: 05.04. 2016 14:51 »
Im now concentrating on getting it to run right so a top end overhaul ,then stand back and think what to do or how it should be.

Online Butch (cb)

  • Wise & Enlightened
  • *
  • Join Date: Aug 2010
  • Posts: 1574
  • Karma: 15
Re: A10 new restoration
« Reply #39 on: 05.04. 2016 18:25 »
I know about mine because I was on it in '79 when it decided to broadside a car that made a left (imagine "right", of course) in front of me. Back then, it didn't know better.

Richard L.

Ha - I did exactly the same thing in '78 on a Honda. Involved a stay in hospital and having my head x-rayed; they didn't find anything.
Warning - observations made by this member have a 93% unreliability rating.

Of Bikes; various, including ...
'58 Iron Head Flash Bitza


Online chaterlea25

  • Wise & Enlightened
  • *
  • Join Date: Jun 2009
  • Posts: 3378
  • Karma: 48
Re: A10 new restoration
« Reply #40 on: 05.04. 2016 20:15 »
Hi,
Quote
I stand to be corrected but isn't it an "urban myth" that the RGS had kinked frames? Arising out of a (wrong) belief the RGS frame was a goldie one but with a RGS frame number?

Urban myth indeed
No BSA produced RGS models have a kink in the frames
Its unknown what Eddy Dow produced though

John
1961 Super Rocket
1963 RGS (ongoing)

Offline terryg

  • Valued Contributor
  • ****
  • Join Date: Nov 2012
  • Posts: 470
  • Karma: 6
    • thecarshipenterprise
Re: A10 new restoration
« Reply #41 on: 06.04. 2016 19:24 »
Re. Urban myth.

I think I have said on the forum before that my genuine RGS, bought as a rolling chassis and box of bits in 1976, came with a spare B31 frame (kinked bottom tube of course).  The previous owner had bought the bike to rebuild and had sourced the 'correct Gold Star type' frame that came as a spare.  Needless to say the B31 frame is still on my shelf.
Terry
'57 'SR', '59 SR, '63 RGS

Offline Viking

  • A's Best Friend
  • ***
  • Join Date: May 2015
  • Posts: 128
  • Karma: 2
Re: A10 new restoration, ID engine & frame
« Reply #42 on: 06.04. 2016 21:06 »
A bike that has been unused for longtime need carb. cleaning, fuel line flush out etc.

And the problematic matter: What is the state of the crank sludge trap ?

It it is full , dry and now solid or?
What is the state of the oil pressure reg. valve ?

No one can tell

Starting and running is a huge risk for the "Big ends"

Vintage MC engines need check and investigation before running.

It is 60 years old and a lot of strange "stuff" can and will happen in 60 years of use.

BSA are relativ easy to work on, a robust build bike, but they have there weak spots.

The crank sludge trap and crank oil way in the timing side beeing the to huge weak issues.
Get them checked and sorted, can save disaster...

Apart from that, they can take a lot of use and return a lot of pleassure to the owner.

Offline KiwiGF

  • Last had an A10 in 1976, in 2011 it was time for my 2nd one. It was the project from HELL (but I learned a lot....)
  • Wise & Enlightened
  • *
  • Join Date: Feb 2011
  • Posts: 1530
  • Karma: 13
Re: A10 new restoration, ID engine & frame
« Reply #43 on: 07.04. 2016 07:08 »
Does a B31 swing arm frame have the a10 head steady bracket welded on to the frame under the tank?

I ask as the B31 has the head steady bolted to the rear of the head so I doubt the other end could then bolt to the A10 bracket, so it would redundant.

If the bracket is not present then it might be worth checking what head steady arrangement exists on the bike?

New Zealand

1956 A10 Golden Flash (1st finished project)

1949 B31 rigid “400cc hot rod” (2nd finished project, + favourite bike)

GL1800 Goldwing, well, the wife likes it

KTM 950 ADV, cos it’s 100% nuts

1952 Armstrong Siddeley Whitley for rainy days (with wife)