Author Topic: B40 piston rings  (Read 126 times)

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Greenfield

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B40 piston rings
« on: 26 March, 2018, 17:10:57 »
Does anyone know of anywhere that stocks B40 piston rings? I bought a set of new Italian ones but they are too wide to fit in the bore once fitted to the piston. Seems like its a common problem. I've tracked down compression rings, old stock, but haven't found an oil scraper ring to fit; its +60 thou. There must be some somewhere.
I've got my fingers crossed.

AWJDThumper

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  • Dandy Beagle D14 C15 B40 B40WD B44 B25 B50 A10 A65
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Re: B40 piston rings
« Reply #1 on: 26 March, 2018, 17:56:54 »
The rings are the same size as for a B44 (79mm bore). If you can't find them anywhere else you can get them from:

http://www.vintage-motorcycle.com/index.php?language=en&site=4&pid=103&limit=30