Author Topic: Hi new to the forum.  (Read 286 times)

Offline Svend

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Hi new to the forum.
« on: 26.01. 2021 20:44 »
After following a7a10 and buying a BSA a7 again, it's time to join. My new BSA 1953 a7 is in bits and pieces  - a assembling set. It has been very helpful to read the many interesting topics here on the a7a10 forum.

Offline muskrat

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Re: Hi new to the forum.
« Reply #1 on: 26.01. 2021 20:54 »
G'day Svend  *welcome*
Good of you to join us. As you have already found the Forum is a wealth of knowledge. Just ask.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Online Alex kettle

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Re: Hi new to the forum.
« Reply #2 on: 26.01. 2021 21:59 »
Welcome Svend. It’s great to see so many people passionate about these bikes. Always interesting seeing others projects.
Enjoy

Offline a10gf

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Re: Hi new to the forum.
« Reply #3 on: 26.01. 2021 22:02 »
Thanks for fine intro, welcome aboard!

A10 GF '53 My A10 website
"Success only gets you a ticket to a much more difficult task"

Online Greybeard

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Re: Hi new to the forum.
« Reply #4 on: 26.01. 2021 22:13 »
 *welcome*

Online scotty

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Re: Hi new to the forum.
« Reply #5 on: 27.01. 2021 05:10 »
Welcome Svend
Nice looking project
Hours of fun ahead


Scotty

Current liabilities:
'56 A10 Red Flash
'54 B33
'98 HD FLHTPI
‘74 BMW R75-6

Online berger

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Re: Hi new to the forum.
« Reply #6 on: 27.01. 2021 05:16 »
 *welcome* svend *beer*

Online bsa-bill

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Re: Hi new to the forum.
« Reply #7 on: 27.01. 2021 10:27 »
Welcome Svend  *wave*
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

Online madsens

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Re: Hi new to the forum.
« Reply #8 on: 28.01. 2021 12:47 »
Velkommen Svend
Endnu en landsmand i folden - hvor omkring i DK, jeg er i Svendborg området...
mvh
Joergen
BSA A10GF 1962
Denmark

Offline Topdad

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Re: Hi new to the forum.
« Reply #9 on: 28.01. 2021 16:54 »
Madsens  ,hope you're not being rude ????
" rules are made for the guidance of wise men and the blind obediance of fools"
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Offline Svend

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Re: Hi new to the forum.
« Reply #10 on: 28.01. 2021 20:00 »
Hi all
Tank you for fine welcome and Madsen just telts he is from Svendborg and it’s nice to se an other Dane
Svend

Offline Swarfcut

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Re: Hi new to the forum.
« Reply #11 on: 29.01. 2021 08:55 »
Svend. That engine looks to have the later wide fin barrel and head. If the engine number is from 1953, it should have a barrel with smaller fins. You may find the previous owner has also added later parts inside, such as high compression pistons and a 356 cam. Both nice to have.
 
  Welcome to the Forum, let us know how you get along.

  Swarfy.

Online Greybeard

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Re: Hi new to the forum.
« Reply #12 on: 29.01. 2021 10:16 »
... That engine looks to have the later wide fin barrel and head...
My bike has the wider fins. Someone told me that if my bike is from 1955 it must have had the top changed. Do you know when they were introduced?

Offline Swarfcut

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Re: Hi new to the forum.
« Reply #13 on: 29.01. 2021 14:03 »
   GB.  With the introduction of the S/A Frame and separate gearbox, the early thin fin barrel and head castings on the plunger engine were phased out from this time can share the same parts as on the S/A motor. The issue is down to date of production versus the date of registration, plus of course the amount of existing "old barrel stock" that BSA wanted to shift on plunger engines.

    As a theoretical date, 1954 would be the earliest for a wide fin barrel to appear on a plunger, by my reckoning, as this is when the wide fin first appears.

 Swarfy.

 Additional. Plunger Crankcase Castings are often found with date stamps. Adjacent to the PRV, under the dynamo cradle, and near or under the primary chain tensioner are the places to look.

Offline Svend

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Re: Hi new to the forum.
« Reply #14 on: 29.01. 2021 19:34 »
Hi all.
It is an engine with wide cylinder and cylinder head. On the engine block is stamped with the date 14-9-53, under the chain tightener.
Disassembled it turns out that it is an A7 cylinder +40. Cylinder head A10, camshaft 67-334, pistons 1:6.7.
My first motorcycle in 1976 was a 1958 A7, over the years converted to the A7 with 67-1101, 2xconcentric 626 and 67-357, but that's a different story.
Then a B31 1953 the most comfortable of my BSA motor bikes, - after some years it was all sold, then to end up with a GS750.
My second acquaintance with BSA an A10 plunger  from 1955, solid and never failed. It was then swapped out with a red LM850 and a red SS900.
Greeting Svend