I am hoping to have access to a spare crankshaft for my 1930 Long Four, but I am not sure whether it is of the correct type.
As I have not stripped my own engine I don't know what to look for.
I assume that all the two-cylinder cranks are generally similar, but - for example - I assume that Bradford ones at least are different in that they have provision for a fan belt pulley at the front end.
What are the differences between the '20's and 30's cranks - apart from the provision for pulleys on those cars with belt driven fans and dynamos?
I suspect - but don't know - that the balance weights may be different, the flywheel mounting, and possibly the crankpins (hollow?).
Any/all advice gratefully received.
Spot the Difference
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ian Howell
- Posts: 963
- Joined: Thu Feb 09, 2006 10:46 am
- 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:
Spot the Difference
The devil is in the detail!
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Keith Clements
- websitedesign
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- Joined: Wed Feb 08, 2006 11:22 am
- Your interest in the forum: Jup NKD 258, the most widely travelled , raced and rallied Jowett.
- Given Name: Keith
- Contact:
Re: Spot the Difference
I went to the parts store in Christchurch NZ where they must have had 100 Bradford crank shafts. They had been methodically testing these with the tap, ring and listen test. They found well over half were cracked. Lots of scrap metal!
skype = keithaclements ;
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ian Howell
- Posts: 963
- Joined: Thu Feb 09, 2006 10:46 am
- 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: Spot the Difference
So, Tap, Ring and listen before committing!
Seems like a good idea, but what about the differences?
I suppose stationery engines could also be an additional variation?
Seems like a good idea, but what about the differences?
I suppose stationery engines could also be an additional variation?
The devil is in the detail!
-
ian Howell
- Posts: 963
- Joined: Thu Feb 09, 2006 10:46 am
- 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: Spot the Difference
More news: -
There are TWO 2 cylinder cranks but they are slightly different . . .
At the front end on one there is a MALE thread about 3/4" diameter and quite coarse (possibly BSW?).
On the other there is a FEMALE thread about 1/2" diameter and noticeably 'finer' (possibly BSF?).
Does this shed any light / confusion?
There are TWO 2 cylinder cranks but they are slightly different . . .
At the front end on one there is a MALE thread about 3/4" diameter and quite coarse (possibly BSW?).
On the other there is a FEMALE thread about 1/2" diameter and noticeably 'finer' (possibly BSF?).
Does this shed any light / confusion?
The devil is in the detail!