The BSA A7-A10 Forum

Bikes, Pictures, Stories & more => Wanted & For Sale => Topic started by: MidlandsA10 on 22.05. 2021 20:24

Title: WANTED - A10 Plunger Crankcases
Post by: MidlandsA10 on 22.05. 2021 20:24
Good Evening All

I am new to this forum - and will post an introduction properly shortly.

I am looking for a set of crankcases for an A10 Plunger (1954).  Any leads would be gratefully received.

Kind regards

Tom
Title: Re: WANTED - A10 Plunger Crankcases
Post by: muskrat on 22.05. 2021 21:01
G'day Tom  *welcome*
BritTwit in the US had a set of earlier (same ex for #) cases. https://www.a7a10.net/forum/index.php?topic=16009.0
Cheers
Title: Re: WANTED - A10 Plunger Crankcases
Post by: Peter in Aus on 22.05. 2021 23:53
 *welcome* Tom, where are you?
Title: Re: WANTED - A10 Plunger Crankcases
Post by: MidlandsA10 on 23.05. 2021 06:09
Hi both,

Thanks for the quick reply - I'm based in the UK, more specifically Leicestershire.  I'll certainly consider having some shipped over if there is no option closer to home.

Thanks,

Tom
Title: Re: WANTED - A10 Plunger Crankcases
Post by: jonny web on 23.05. 2021 23:59
Hi Tom, I have a pair of matched 1950 plunger cases if that's of any interest. I m based in Hessen in Germany.
Title: Re: WANTED - A10 Plunger Crankcases
Post by: MidlandsA10 on 24.05. 2021 16:34
Hi Jonny,

Sounds great. Are the 50's cases the same as the 54?

Can you please inbox me with how much you are looking for, for them? I take it they're in fairly good condition?

Many thanks

Tom
Title: Re: WANTED - A10 Plunger Crankcases
Post by: trevinoz on 24.05. 2021 23:16
I think that you will find that 1950 cases don't have the relief oil feed to the timing gears and cam tunnel.
Title: Re: WANTED - A10 Plunger Crankcases
Post by: Swarfcut on 25.05. 2021 08:35
 That's correct Trev. They don't have a crankshaft oilseal either. Case series for later engines is BA.  AA Series is the Unicorn variety..... I'm wondering why our new member Tommo is in need of cases, has another major disaster occured? Unless its a desperate need these cases still turn up from time to time on ebay, so worth waiting for.

 Swarfy.
Title: Re: WANTED - A10 Plunger Crankcases
Post by: resto_man63 on 25.05. 2021 16:14
Hi~ I am new to the forum too, I just bought a 1952 golden flash and it came with a set of matching crankcases. I am in Plymouth UK just in case!  I would want £150 for them. Number on them is BA10 14365.
Regards
Title: Re: WANTED - A10 Plunger Crankcases
Post by: MidlandsA10 on 25.05. 2021 19:57
Gents

Thanks for the reply - no major disaster fortunately.  I bought a plunger frame/forks/wheels which I've been tinkering with (powder coated the frame black, stainless spokes in the wheels etc).  It didn't come with an engine so that's the next logical step.

Resto_man, I think I know the A10 you purchased - was it on eBay a month or two ago?  I spotted it came with a spare bottom end.


Would you take 120 if I came to collect?

Many thanks

Tom
Title: Re: WANTED - A10 Plunger Crankcases
Post by: resto_man63 on 25.05. 2021 21:04
Hi Tom  Yes your right that's the bike I bought, just needed putting back together. Yea right!!!!!
I want £150 as that's what they seem to be going for, they are in verygood condition no damage and all threads good. If your interested give me your email and I can send you some pictures. I did try putting some on here but it said file to big or something?
Cheers Tony
Title: Re: WANTED - A10 Plunger Crankcases
Post by: MidlandsA10 on 25.05. 2021 22:46
Thanks!  I've sent you a DM.

Tom
Title: Re: WANTED - A10 Plunger Crankcases
Post by: trevinoz on 25.05. 2021 23:39
Swarfy, why do you say AA series cases are rare?
Only used on short stroke A7 in 1951-52 but not particularly rare.
Title: Re: WANTED - A10 Plunger Crankcases
Post by: Swarfcut on 26.05. 2021 07:46
Trev, You will find AA7 Cases a' plenty for sure, but you won't find a genuine AA10 Crankcase, so my comment was a bit tongue in cheek and posted as a bit of light relief.....

 For a rebuild any plunger  A7 or A10 cases will do as the castings are identical. Later cases have improvements to the design but early ones work well enough for most folks.

 Get finance arranged Tommo. You'll need a big journal crank, pistons, rods, thick flange barrel, alloy head. rocker box and a SRM pump, timing gears, maggy, dynamo and carb. as well as the cases. Compare this to a complete engine unit which may or may not (lucky find) require major work and you can see that buying a lump works out a good deal cheaper. Horses for courses, depends what you want, a nice leisure machine or an out and out screamer with all the bells and whistles.

 Swarfy.
Title: Re: WANTED - A10 Plunger Crankcases
Post by: Rex on 26.05. 2021 09:04
You're not wrong. Buying an engine (or bike!) in the manner of Johnny Cash's Cadillac takes time, effort and too much money.
It's buying all the little incidental doo-dads that soon mount up to big money, so I'd always buy a near complete unit (even worn out) in preference.
Are bare cases really making £150 now...? *eek*
Title: Re: WANTED - A10 Plunger Crankcases
Post by: MidlandsA10 on 26.05. 2021 15:15
Thanks guys - interesting reading.  Fortunately, I have most the components other than cylinders and a magneto.  I bought a job lot incredibly cheap which had most of the internals, including a crank, and the outer cases.

Whilst it probably isn't the most efficient way of doing things, it makes it quite fun to slowly build things up into a full bike.

I'm also looking for:

Centrestand
Footpegs
Brake pedal
Rear mudguard
Toolbox
Petrol tank
Cylinders

A nice chap in Aus has parts available which I will use if necessary, however if any are available closer to home it would be preferable.

Kind regards

Tom
Title: Re: WANTED - A10 Plunger Crankcases
Post by: spanersc on 08.06. 2021 21:43
Hi Tom.
Have you seen the 1954 Crankcases that have appeared on ebay?   item no 384211604474
Good Luck.
Pete
Title: Re: WANTED - A10 Plunger Crankcases
Post by: muskrat on 08.06. 2021 22:46
G'day Pete.
I'm bidding on that. Pleeeeeease leave it for me *ex*
Cheers
Title: Re: WANTED - A10 Plunger Crankcases
Post by: spanersc on 09.06. 2021 07:54
Hi Tom.
You're ok on that one. I'm searching for a pair of really early 'AA7' (hint hint) cases with as low a number as possible, so I know how frustrating it can be. Good luck
Title: Re: WANTED - A10 Plunger Crankcases
Post by: MidlandsA10 on 14.06. 2021 12:06
Chaps

Thanks for the pointers. 

Muskrat - you're safe.  I picked the cases up that were offered to me by Tony (RestoMan_63) so I'm all sorted now thanks.

Still looking for the below items:

Hinged rear mudguard
Footpegs
Battery carrier (who isn't looking for one!)
Toolbox
Petrol tank
Brake pedal pivot

Kind regards

Tom