180 mm piston rings

180 mm piston rings

This topic has 4 replies, 5 voices, and was last updated 16 March 2025 at 11:13 by Andrew Tinsley.

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15 March 2025 at 15:04 #788878
Bjørn Vargset
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@bjornvargset30829
Hi, anybody.
I am searching for someone (company or other) that can produce piston rings for a 1953 model NOHAB diesel. Cylinder diameter is 180 mm. The upper grooves have 5 pc compression rings. The scraper rings are a bit special. It’s two different type scraper rings in the lowermost part. The upper one of these have one solid ring whilst the lowermost groove is fitted with two scraper rings that’s half the thickness of the solid one.

I will of course produce pics and data when/if this should lead to something.

Brgds

BjoVar
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15 March 2025 at 15:52 #788884
duncan webster 1
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@duncanwebster1
Google brings up loads of suppliers/manufacturers
15 March 2025 at 21:30 #788928
D.A.Godley
Participant
@d-a-godley
I have purchased rings from. A S Piston Rings , 07723918750 .

This was some while ago so memory not too clear , but I think they are based near Chesterfield.

Other than as a customer, I have no connection .

Hope they can help ! .
16 March 2025 at 07:46 #788944
Diogenes
Participant
@diogenes
Not tried, but

https://www.coxandturner.co.uk/piston-rings/
16 March 2025 at 11:13 #788975
Andrew Tinsley
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@andrewtinsley63637
Is this for one of the famed Nohab diesel locos? I suppose that they are now long out of service. Fond memories!

Andrew.
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