BSA Owners' Club Workshop Discussions

The BSA Workshop => Singles => Topic started by: PeterinOz on 28 Apr, 2025, 22:32

Title: STD 82mm oil piston ring for 1940 M21
Post by: PeterinOz on 28 Apr, 2025, 22:32
Where can I get an 82mm oil piston ring?  I see this on eBay, any use?  Oil Control Piston Rings Ø 80 - 84.5 mm (3.15 - 3.327 in) w/ Spring Coil

Link to site (https://www.ebay.com.au/itm/400327426327?_skw=82+mm+oil+control+piston+ring&itmmeta=01JSXWM3HVCA3WV2WVW21RTD91&hash=item5d355fc117:g:yfoAAOSw6YtZObzz&itmprp=enc%3AAQAKAAABAFkggFvd1GGDu0w3yXCmi1dg77eEReErQ2678YSCeCYrFUwubBsi30VuKRI8spxybF0rUBjFEqF22ppshs%2BJsvTZVhB7mUT1ugM2pIOIBDuKbe8AaCfQdA2pV9bDSmSXyCTYEK1nXqadWnr7gnB3rY0CY3jYpdOc7BiNtFnvtJ%2BILpIEuwshkEZxeVp1zgwWAocJIBomrD%2BIKqd%2FsgmHWBr%2BDUaMm%2F3Vj04MYowfJsA6Qr0wcW3%2Bp8vUqnoVPH5sJ3Iy4JM71oPcpSgCs%2FgRsjo4%2F9AzFkI7SXmF8Yd%2B4i%2BPGGFE752sx9g3Ln7gbgf2iSR%2F2htlSd7dRcldIZWRbLI%3D%7Ctkp%3ABk9SR4i50LzPZQ)

Thanks for any advice received.
Title: Re: STD 82mm oil piston ring for 1940 M21
Post by: Derek996 on 29 Apr, 2025, 12:22
Seems straight forward. Select 82mm and either 3mm or 5mm thickness depending on what you need.
Title: Re: STD 82mm oil piston ring for 1940 M21
Post by: Derek996 on 29 Apr, 2025, 12:28
Or if you know what you need you could try Cox and Turner (https://www.coxandturner.co.uk/piston-rings/)