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General Category => General Discussion => Topic started by: meccanicab on February 09, 2023, 05:43:56 PM

Title: Griso 1100 Piston Rings
Post by: meccanicab on February 09, 2023, 05:43:56 PM: Hi guys, I've managed to break the oil ring whilst 're assembling the engine after a light make over.
The rings are no longer available to order from the factory, except as a complete piston/ring assembly, which is very costly.
Would any of you guys know which ring manufacturer makes the rings, plus where to purchase?
Thanks in advance.
Title: Re: Griso 1100 Piston Rings
Post by: MattP on February 09, 2023, 07:33:56 PM: Total seal call them talk to tec you want a molly or cast not crome 3 pice dia and thickness is what willbe asked.
Title: Re: Griso 1100 Piston Rings
Post by: Don G on February 10, 2023, 06:40:39 AM: Any ring manufacturer will need to know cylinder diameter, ring width and depth, as mentioned above in a non-chrome material due to the cylinder surface material, chrome on chrome action is not cool. DonG
Title: Re: Griso 1100 Piston Rings
Post by: MattP on February 10, 2023, 08:06:56 AM: Corect
Title: Re: Griso 1100 Piston Rings
Post by: Antietam Classic Cycle on February 10, 2023, 08:11:47 AM: The part number of the oil ring is 05061030/GU05061030. Doing a Google search of that number brings up a few possibilities.
https://www.google.com/search?client=firefox-b-1-d&q=GU05061030

Whether it's in stock at any of those listed is another thing.
Title: Re: Griso 1100 Piston Rings
Post by: pressureangle on February 10, 2023, 08:14:49 AM: Quote from: Don G on February 10, 2023, 06:40:39 AM
Any ring manufacturer will need to know cylinder diameter, ring width and depth, as mentioned above in a non-chrome material due to the cylinder surface material, chrome on chrome action is not cool. DonG

I had Total Seal make a set for my '85 LeMans. Very easy to work with and not expensive.
Title: Re: Griso 1100 Piston Rings
Post by: Don G on February 10, 2023, 05:06:36 PM: I have used Chrysler 2.5L rings in 88mm cast bores, if I remember offhand they were + .5mm overbore, buy a set in chrome,moly or cast and you can service 2 engines fairly economically. DonG
Title: Re: Griso 1100 Piston Rings
Post by: guzzisteve on February 10, 2023, 05:50:04 PM: Sent you a PM, my friend has 2 sets for stock G pistons, we are in USA not England. I would check there 1st.
Title: Re: Griso 1100 Piston Rings
Post by: meccanicab on February 11, 2023, 12:07:53 AM: Quote from: Antietam Classic Cycle on February 10, 2023, 08:11:47 AM
The part number of the oil ring is 05061030/GU05061030. Doing a Google search of that number brings up a few possibilities.
https://www.google.com/search?client=firefox-b-1-d&q=GU05061030

Whether it's in stock at any of those listed is another thing.

I've already exhausted all the suppliers in Europe who specialize in Guzzi parts. No old stock floating around. Not available from the factory.
I'm approaching various ring suppliers in the UK, but most don't deal with Italian. Japanese/ British yes.
Title: Re: Griso 1100 Piston Rings
Post by: meccanicab on February 11, 2023, 12:08:59 AM: Quote from: guzzisteve on February 10, 2023, 05:50:04 PM
Sent you a PM, my friend has 2 sets for stock G pistons, we are in USA not England. I would check there 1st.

Thanks for the pm.