Gregory Bender

Piston ring alternative

Moto Guzzi V7 Sport, 750 S, 750 S3, 850 T, 850 T3, 850 T3 California, V1000 I-Convert, V1000 G5, 1000 SP, Le Mans, Le Mans II, Le Mans CX 100, Le Mans 1000, 1000 SP III, 1000 S, California II, California III, California 1100, California Jackal, California EV, California EV Touring, California Aluminium, California Titanium, California Special, California Special Sport, California Stone-Metal, California Stone-Touring, California Classic, California Touring, and California Vintage models



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I extracted this information from Jim VanDenBerghe off of the Yahoo! MGconvert news group. In Jim's own words:

I may have mentioned this in a past post: The 2.2L Chrysler 4 cylinder engine had a bore of 87.5 mm. And all three rings are the same thickness as the Guzzi rings. So a 0.5 mm oversize ring is for a 88 mm bore – the same as the Convert. I talked to the owner of the local speed shop and he said a moly ring should work fine in a stock OEM steel cylinder or a Gilardoni cylinder. And you can get a set of 4 for about half of what a set of Guzzi rings would cost. Something to consider.