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Old 24-01-14, 02:34 PM   #1
tynwald
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Default Lister A Caged Valve Seals

Hi All
I am presently restoring a Lister A with caged valves. It does not have any seals/gaskets between the valve cages and the combustion chamber. Does anyone know what these seals consist of, or maybe even a supplier. I had thought about using anealed copper washers, but I would like to get it right.

Cheers
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Old 24-01-14, 04:24 PM   #2
Kevbuts
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Hi There,

Not sure whether the sealing rings on eBay will fit the earlier caged valve Lister A, but might be worth speaking with the seller to check dimensions. These are the type of thing you need (copper rings with a compressible filler / inside).

Here is a link: http://www.ebay.co.uk/itm/Lister-A-a...item43c4bba8df

Hope this helps
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Old 24-01-14, 07:30 PM   #3
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Cheers for that. Will give it a try.
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Old 24-01-14, 08:18 PM   #4
martinpaff
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Did the Lister caged valves actually use any kind of gasket? I have absolutely no idea, but other caged valves that I have fit onto a tapered seat, and have no gasket...

MP
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Old 24-01-14, 08:51 PM   #5
'A' Lister
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The gaskets linked to are for the large, brass, screw-in 'inside the hopper' type valve covers on later A and B engines, such as my 1940 Lister A.

Like Martin, I don't know if the early external, removable caged valves were fitted with gaskets? :confused:
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Old 25-01-14, 07:25 PM   #6
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Thanks for the posts. definately a parralel fit against a face. I have got some photo's of the cages & the cylinder block which i will post, when I have worked out how. The photos are at present about 3 Meg file size so I need to post smaller ones.

Cheers Martin Frodsham
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Old 25-01-14, 09:33 PM   #7
allan grieve
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Default Lister A cage valve seal

Hi
When I restored my spec 13 I used copper washers and a little exhaust sealing past

What is the spec No of your engine?

Allan
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Old 26-01-14, 03:49 PM   #8
tynwald
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DSCN0245.JPG

DSCN0244.JPG
Hope this works.
The engine is an A54 spec. The exhaust cage has a flat on the base, which positions the exhaust at 45 deg (as shown).

Cheers Martin Frodsham
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Old 08-02-14, 06:00 PM   #9
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Default Copper Washers

The proper ones are certainly made out of Copper as I still have a good original set in my own caged valve Lister.

When I rebuilt the engine back in the 80s they were in excellent condition & didn't get changed.

Steve
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Old 08-02-14, 07:49 PM   #10
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from memory a person in the SEM restored one (this article was in the 1980's) and he even said the valves were trouble some to seal in this respect, and he used high temp silicone as i recall.

Paul.
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