I need to change the rings of my G9/1953 in order to improve the compression, but I did'nt found anything here (in Italy) and also in the our spares catalogue. In fact I found in the catalogue only some rings, but only for 500cc twin 56/61.
THE QUESTION: is it possible to fit these rings on a piston of 66 mm. bore? or something has changed in 1956?
Otherwise where can I find these rings?
Thanks to everybody for the answer!
piston rings
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maribar
- Posts: 4
- Joined: Wed Nov 24, 2004 12:00 am
- Location: TUSCANY ITALY
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RogerNorman
- Member
- Posts: 211
- Joined: Mon Jan 01, 1990 12:00 am
- Location: Notts UK
piston rings
A quick call with Jim will confirm (when he comes back from Holiday) but I am certain the rings we stock are 'metric' sizes for the current stock of pistons and not imperial sizes. As a result the new rings do not fit into the grooves of old original pistons. There used to be a small quantity of 'new old stock' rings in stock but whether we still have these - again Jim will tell you. Alternatively you will have to source through an autojumble or major piston stockist that holds old stocks as well as new manufactured rings.
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Ralph Whitaker.
- Posts: 13
- Joined: Wed Oct 12, 2005 10:45 pm
- Location: UK
piston rings
Try Andrews Engineering, Leigh at www.andrew-engineering.co.uk . Ive just had a look at their list and they did have a limited stock of +20 and +30 rings for the 66mm bore twin. Failing that try John Phelan, 18 Bowshaw, Dronfield, Nr Sheffield, England, he has a large stock of Pistons and rings.