I am now told that this system is used by some 'modern' cars and that TWO idler gears (one on each 'side' to balance wear?) are used between crankshaft and camshaft gears, to make the camshaft rotation the same as the crankshaft.
Any comments?
Driving a 1924 Short Two. Now building his own.
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ian Howell
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Taken in a part-repaired state to the 2010 Centenary Rally, returned to a roadworthy state by 2013. - Given Name: Ian
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Re: Driving a 1924 Short Two. Now building his own.
The devil is in the detail!
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ian Howell
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From 1966 to '67 Black deLuxe Javelin LDF 738 (Scrapped with broken chassis)
From 1967 to '87 Black de Luxe Javelin MKC 1 (later 6469TU). (Sold as non-runner with tons of spares, 1987)
From about 1980 to '87 ex WD Jowett stationary engine. (Sold on)
From 1966 to present, 1930 Long Four Fabric Saloon, Dark Blue / Black.
Taken in a part-repaired state to the 2010 Centenary Rally, returned to a roadworthy state by 2013. - Given Name: Ian
- Location: Eastbourne, East Sussex, England
- Contact:
Re: Driving a 1924 Short Two. Now building his own.
I have had a response from Vic Morrison in New Zealand - they were all like that pre-1930.
Another of Steven Poole's improvements I guess.
The camshafts were in the opposite sequence of course.
That second small gear behind the big one does what?
Another of Steven Poole's improvements I guess.
The camshafts were in the opposite sequence of course.
That second small gear behind the big one does what?
The devil is in the detail!
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k. rogers
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Re: Driving a 1924 Short Two. Now building his own.
That drives the dynamo/distributor via a fabric coupling.
7hp Weasel & Kingfisher
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Tony Fearn
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Re: Driving a 1924 Short Two. Now building his own.
I was surprised that setting up the crankshaft to the camshaft seemed to be much easier on the vintage engine compared to when the chain was introduced.
There are 3 position options on the camshaft gear of my 1933 and 1934 7hps, (I believe 1/3 of a tooth difference), as well as a couple of options on the key for the crankshaft sprocket.
As my friend Ian Howell always says, "Any comments".
Tony.
There are 3 position options on the camshaft gear of my 1933 and 1934 7hps, (I believe 1/3 of a tooth difference), as well as a couple of options on the key for the crankshaft sprocket.
As my friend Ian Howell always says, "Any comments".
Tony.
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k. rogers
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Re: Driving a 1924 Short Two. Now building his own.
That's right, Tony, 6 different options. I didn't realise you only have the one correct position on the vintage, but given the gear drive I suppose that is the case. Don't know if that's a good thing or not. I suppose on the vintage it doesn't enable you to compensate for any machining inaccuracies in the cam or crank, assuming there might have been.
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James Baxter
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Re: Driving a 1924 Short Two. Now building his own.
There is some adjustment because the keys which drive the gears are round pins, with off-set parallel bit to fit the keyway. So you can spin it round 180 deg and alter the timing.
Restoring a 1924 Short 2
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k. rogers
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Re: Driving a 1924 Short Two. Now building his own.
Thanks for that James. So a bit like the key on the crankshaft of the '30s ones in that case. Any update on your son's vintage?
7hp Weasel & Kingfisher
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James Baxter
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Re: Driving a 1924 Short Two. Now building his own.
Yes, the chassis is now on its wheels. We are doing a dry build first to get engine position determined, radiator and cross member moved back, holes drilled then scrat and paint later. Hardy spicer propshaft is ordered. Discussions underway whether to do a standard sports or a Joe Hepworth.
(thanks Keith - i scrolled down and found the attachment part)
(thanks Keith - i scrolled down and found the attachment part)
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Last edited by James Baxter on Sun Nov 07, 2021 10:46 pm, edited 4 times in total.
Restoring a 1924 Short 2
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Keith Clements
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Re: Driving a 1924 Short Two. Now building his own.
James.
I do not charge for you to attach a photo or two or three to any post on JowettTalk!
I do not charge for you to attach a photo or two or three to any post on JowettTalk!
Last edited by Keith Clements on Mon Nov 08, 2021 5:22 pm, edited 1 time in total.
skype = keithaclements ;
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k. rogers
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Re: Driving a 1924 Short Two. Now building his own.
I'm excited about this! I will be following any updates with great interest.
7hp Weasel & Kingfisher
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PJGD
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Re: Driving a 1924 Short Two. Now building his own.
What is the chain-driven monster next to the Jowett chassis?
Philip Dingle
aka, PJGD
aka, PJGD
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James Baxter
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ian Howell
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- Your interest in the forum: From 1962 to '63, CA Bradord LLG 125 (Repaired and used).
From 1966 to '67 Black deLuxe Javelin LDF 738 (Scrapped with broken chassis)
From 1967 to '87 Black de Luxe Javelin MKC 1 (later 6469TU). (Sold as non-runner with tons of spares, 1987)
From about 1980 to '87 ex WD Jowett stationary engine. (Sold on)
From 1966 to present, 1930 Long Four Fabric Saloon, Dark Blue / Black.
Taken in a part-repaired state to the 2010 Centenary Rally, returned to a roadworthy state by 2013. - Given Name: Ian
- Location: Eastbourne, East Sussex, England
- Contact:
Re: Driving a 1924 Short Two. Now building his own.
Fiat S61? Now that's serious metal!
The devil is in the detail!
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James Baxter
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Re: Driving a 1924 Short Two. Now building his own.
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Restoring a 1924 Short 2
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k. rogers
- Posts: 480
- Joined: Thu Feb 23, 2006 9:43 pm
- Your interest in the forum: 1933 7hp Kingfisher
1935 7hp Weasel
1928 7hp Sports replica
1952 Bradford special - Given Name: Ken
- Location: Cornwall
Re: Driving a 1924 Short Two. Now building his own.
That's going to look nice!
7hp Weasel & Kingfisher