Fan support struts.
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Forumadmin
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Mike Allfrey
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- Given Name: Michael
- Location: Melbourne, AUSTRALIA.
G'dday From The Sunny South!
I notice that one point has been 'forgotten' in this discussion. That is, that in the technical notes circulated at the Javelin's release, Jowett Cars Limited referred to the cooling system as being of, 'the thermo-syphon type, assisted by a water pump'. To me that illustrates the reason for the type of water pump mounting - it is the result of, "Oh dear! We forgot the water pump." So, it was added post-haste.
The Oddie nuts should not be fully tightened down, because fully tightening results in broken stay rod bases and increased wear at the two spigots at the rear fan shaft bushing.
On my Javelin I have a rubber mount (ex WD in 1965) located at the rear of the extension tube. This has worked well for many years.
On my Jupiter, I welded flanges to water pump inlet and front timing cover outlet. The two components are bolted with four 6 mm studs and an 'O' ring instead of a gasket. It works very well and I now have a vertical water pump that had to be modified to lean towards the passenger side to allow room for the distributor.
I have, in the dark past, tried a strap at the driver's side which did not work at all as the two support straps tended to move like a parallelogram to let the pump move sideways as per normal. I did cure this by fabricating an extra strap that was secured by two of the timing cover bolts, but it looked unsightly - hence my flange modification.
I tend, on hot days, to ignore the temperature gauge, unless it reaches boiling point - which is very rare.
Regards to all at Wakefield!
Mike Allfrey.
I notice that one point has been 'forgotten' in this discussion. That is, that in the technical notes circulated at the Javelin's release, Jowett Cars Limited referred to the cooling system as being of, 'the thermo-syphon type, assisted by a water pump'. To me that illustrates the reason for the type of water pump mounting - it is the result of, "Oh dear! We forgot the water pump." So, it was added post-haste.
The Oddie nuts should not be fully tightened down, because fully tightening results in broken stay rod bases and increased wear at the two spigots at the rear fan shaft bushing.
On my Javelin I have a rubber mount (ex WD in 1965) located at the rear of the extension tube. This has worked well for many years.
On my Jupiter, I welded flanges to water pump inlet and front timing cover outlet. The two components are bolted with four 6 mm studs and an 'O' ring instead of a gasket. It works very well and I now have a vertical water pump that had to be modified to lean towards the passenger side to allow room for the distributor.
I have, in the dark past, tried a strap at the driver's side which did not work at all as the two support straps tended to move like a parallelogram to let the pump move sideways as per normal. I did cure this by fabricating an extra strap that was secured by two of the timing cover bolts, but it looked unsightly - hence my flange modification.
I tend, on hot days, to ignore the temperature gauge, unless it reaches boiling point - which is very rare.
Regards to all at Wakefield!
Mike Allfrey.
E0 SA 42R; Rover 75
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Tim Neville
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How on earth from the earliest design stages did they think that just thermo-syphoning would ever work considering the sort of power output they were aiming for? Ancient historical thinking at work there! I've got a feeling that Mr.Palmer was really up against a lot of 'inertia' from the establishment!
Still, it gives us lots to talk and laugh about. And the chance to do some decent re-engineering.
Still, it gives us lots to talk and laugh about. And the chance to do some decent re-engineering.
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TedAllen
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- Your interest in the forum: Jowett now owned over 40 yrs
- Given Name: ted
- Location: Manchester. The Rainy City
I wonder if anyone has actually run a Javelin with just a thermosyphonic system in place.
It wouldn't be difficult to sort out the pipework and the only other consideration would be some way of securing the dynamo and the use of a shorter V belt. Perhaps with an electric fan, which were probably not available in the early 50s.
Not that I'm about to try, having just taken delivery of a nice, rebuilt, cuddly pump from the Lock Emporium to replace all the bits of tat that I was trying to cobble together to make one good one !
Ted
It wouldn't be difficult to sort out the pipework and the only other consideration would be some way of securing the dynamo and the use of a shorter V belt. Perhaps with an electric fan, which were probably not available in the early 50s.
Not that I'm about to try, having just taken delivery of a nice, rebuilt, cuddly pump from the Lock Emporium to replace all the bits of tat that I was trying to cobble together to make one good one !
Ted