Classic cars forum & vehicle restoration.
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arossco
Joined: 15 Oct 2008 Posts: 35 Location: Glasgow
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Posted: Mon May 20, 2013 3:37 pm Post subject: Exhaust valve pitting. |
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Hi -
I'm overhauling my 1956 Cresta engine, and have noticed some pitting on the exhaust valve stems, though the valve seat area seems to be Ok.
Should I replace the valves which have this kind of pitting ?
Ross
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peter scott
Joined: 18 Dec 2007 Posts: 7118 Location: Edinburgh
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Posted: Mon May 20, 2013 6:27 pm Post subject: |
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Hi Ross,
I don't think the pitting will make your stems any more likely to fracture than the collett grooves and I don't think they will noticably affect the rate of oil passage down the stems so my advice would be just to fit them.
Peter _________________ http://www.nostalgiatech.co.uk
1939 SS Jaguar 2 1/2 litre saloon |
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Phil - Nottingham
Joined: 01 Jan 2008 Posts: 1252 Location: Nottingham
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Posted: Mon May 20, 2013 7:34 pm Post subject: |
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Acid/moisture in old oil but probably will be OK _________________ Rover P2
Rover P4
Rover P5 & P5B
Land Rover S2 & S3
Morris Mini Traveller Mk2 |
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arossco
Joined: 15 Oct 2008 Posts: 35 Location: Glasgow
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Posted: Mon May 20, 2013 8:39 pm Post subject: |
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Many thanks Peter and Phil - I'll put these valves back into service !
Ross |
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