BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: thunderboltandlightfoot on 11 Dec, 2020, 11:06

Title: Piston rings
Post by: thunderboltandlightfoot on 11 Dec, 2020, 11:06
Ok help and opinions appreciated I need new rings for my rebuild A65 1968 recommendations please lots on sale but lots of rubbish as well , are Hepolite, apex any good thanks .
Title: Re: Piston rings
Post by: chaz on 11 Dec, 2020, 17:21
most Hepolite come from India nowadays, still made to standards.  you can find the odd new/old stockon ebay or even at autojumbles (not many around) , Ive recently bought Hastings (from America) for the B40 seem ok. JP do pistons from America expensive, there are a couple of Eastern European suppliers that my machinist says he wont use.
i could have got away with standard rings on my A50 but finding rocking horse droppings is as bad as looking for hens teeth, managed to get a set of pistons and rings for £90 so the rebore cost was better than honing then finding out of tolerance. the modern Triumph Hepolites Ive recently used are running fine.
Title: Re: Piston rings
Post by: DAVE BRADY on 11 Dec, 2020, 18:12
Hi,

I have fitted Goertz (?) in A10 and A65.  SRM supply these.

Dave.
Title: Re: Piston rings
Post by: thunderboltandlightfoot on 11 Dec, 2020, 20:59
Hi, Many thanks for your prompt replies Chas & Dave ( no pun intended ) I will go for the best I can afford
     thanks again.
Title: Re: Piston rings
Post by: wardy on 12 Dec, 2020, 08:10
Goetze - part of Federal-Mogul