Author Topic: longstroke engine  (Read 6339 times)

Online bikerjohndavies

  • John Davies, Bath, UK
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  • 1953 BSA A10 Super Flash
Re: longstroke engine
« Reply #15 on: 04.01. 2012 15:50 »
Hi Dave, have you seen the 49 plunger longstroke project at Cotswold Classics. Seems cheap enough.

http://www.cotswold-classics.co.uk/viewitem.php?currency=gbp&list=stock&id=2138

Happy New Year
1931 Ariel VB31, 1935 Triumph 5/3 project, 1946 Ariel Square 4, 1952 Norton Model 7, 1953 BSA A10 Super Flash, 1954 Ariel VH

Offline vagabond

  • DAVE VAGABOND HUBBARD
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  • 1955 GOLDEN FLASH
Re: longstroke engine
« Reply #16 on: 04.01. 2012 17:51 »
I wish I had seen that last month before i started amounting bits
A10 1955 GOLDEN FLASH unrestored & original gold
PANTHER 1953 100R basket case & bits wanted
2 X 1953 VAUXHALL VAGABONDS projects
1954 VAUXHALL VELOX project

Offline Tomcat

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Re: longstroke engine
« Reply #17 on: 05.01. 2012 11:36 »
As another Longstroke owner I find this subject very interesting. I would agree with the negatives stated about camshaft and follower wear and overheating. From my research on the history of these engines I see that Bert Hopwood chose not to stretch the capacity to 650cc, and designed a new cylinder head with better air flow. I rebuilt my engine, treat it well and change the oil when it gets black (oil is cheaper to replace than an engine). These engines go well and when I'm on a club run other Beeza owners comment on it's performance. I also understand that post war England had an "Export or die " policy and they are thin on the ground in the home country. Another forum member previously mentioned the low cost of Longstroke parts in AU, this probably is due to being less popular than later engines, and I don't have a problem with that! *smile* Cheers TC
1959 Super Rocket, 1990 NX650

Offline terryk

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Re: longstroke engine
« Reply #18 on: 05.01. 2012 12:32 »
Hi Tomcat how bout some more pics of your longstroke.
Its always good to see them on the road especially the rigid with QD front and back wheels.
My 1947 was on the road until about a month ago when it decided to not want to go into 4th gear so I'm investigating that at the moment.
If you dont want to post them my email is gflash11@hotmail.com
cheers Terry
1950-53 A10 rigid/plungers, 1958-61 A10 super rockets, 1947-50 A7 longstrokes, 1949 Star twin,
1951-54 A7 plungers, 1940s M21, WDM20s,
1948-50s B33s rigid/plunger/swingarm, 1948-50s b31s rigid/plunger/swingarm

Offline Tomcat

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1959 Super Rocket, 1990 NX650