Author Topic: Heavyweight crank?  (Read 481 times)

Online Greybeard

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Heavyweight crank?
« on: 19.03. 2021 12:48 »
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Offline Seabee

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Re: Heavyweight crank?
« Reply #1 on: 19.03. 2021 14:50 »
You'd never stall that one taking off!
1961 Super Rocket
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Online Greybeard

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Re: Heavyweight crank?
« Reply #2 on: 19.03. 2021 18:25 »
What was the purpose of these cranks?

Online berger

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Re: Heavyweight crank?
« Reply #3 on: 19.03. 2021 18:36 »
greybeard I have just seen -for side car use made for one year

Offline trevinoz

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Re: Heavyweight crank?
« Reply #4 on: 20.03. 2021 21:03 »
They were the original LJ cranks used in Road Rockets until 1957.

Offline BSA_54A10

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Re: Heavyweight crank?
« Reply #5 on: 22.03. 2021 01:57 »
One of the three wheeled cars of the 50's used an A7 but those cranks are usually longer on the output side.
And are heavier than the motorcycle cranks.
Bike Beesa
Trevor

Online Greybeard

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Re: Heavyweight crank?
« Reply #6 on: 22.03. 2021 09:40 »
One of the three cars of the 50's used an A7 but those cranks are usually longer on the output side.
And are heavier than the motorcycle cranks.
Are you talking about BSA cars?

Offline BSA_54A10

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Re: Heavyweight crank?
« Reply #7 on: 24.03. 2021 07:32 »
forgot the word wheelers.
Things like the Bond .
One of those back of the brain things.
BSA used their own engine in their 3 wheelers which was water cooled .
Bike Beesa
Trevor

Online JulianS

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Re: Heavyweight crank?
« Reply #8 on: 24.03. 2021 09:30 »
A small number of A10 engines were supplied to Fairthorpe for this car in the 1950s.

Though I suspect they were not fitted with the questioned crank.


Online Greybeard

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Re: Heavyweight crank?
« Reply #9 on: 24.03. 2021 09:46 »
I noticed this...



Online Greybeard

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Re: Heavyweight crank?
« Reply #10 on: 24.03. 2021 09:48 »
There is no mention of an electric starter.  *eek*

I guess it's mounted on the far side of the bell housing with the Bendix engaging with a toothed flywheel, as per cars of the time.

If there is a car type clutch is it fixed to a car type flywheel? If so, does the engine still have the normal, or even the heavyweight flywheel?

Online Minto

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Re: Heavyweight crank?
« Reply #11 on: 25.03. 2021 00:45 »
My brother Daren had a friend in Birmingham who was very much into BSAs, also owned a BSA engined 3 wheeled car called a Berkley, I know nothing about other than one had to lift the bonnet up and climb inside to kick-start it, awesome!
Just googled this, and it wasn't a BSA engine at all, it was an Excelsior talisman 328cc 2 stroke, sorry.
Regards
Jase
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Online groily

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Re: Heavyweight crank?
« Reply #12 on: 25.03. 2021 07:51 »
And the bigger ones had the Super Meteor Oilfield engine with 40bhp. Berkeley went through a range of 2 stroke and then 4 stroke motors and made quite pretty but fragile 3 and 4 wheelers, as rare as hens' teeth now.
My dad's first wheels (apart from a little Coventry-Eagle he used - in Coventry! - for fire-watching duties as a teenager in the first years of WW2) was a three-wheeled Beesa. He always said he wished he'd kept it - along with a hundred other things of course, as the rose-tinteds misted up.
Bill

Offline BSA_54A10

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Re: Heavyweight crank?
« Reply #13 on: 25.03. 2021 08:16 »
A small number of A10 engines were supplied to Fairthorpe for this car in the 1950s.

Though I suspect they were not fitted with the questioned crank.
Not the one I was thinking of but similar idea
A heavy crankshaft would be an advantage but that car looks like it has a flywheel & std electric starter
The one in the back of my mind had a crank handle start
Bike Beesa
Trevor

Online JulianS

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Re: Heavyweight crank?
« Reply #14 on: 25.03. 2021 09:57 »
BSA supplied some C10 250cc engine to AC for their 3 wheeler Invacar during the early 1950s.