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Author Topic: RK piston rings  (Read 2299 times)

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Offline KRONUS0100

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RK piston rings
« on: March 06, 2010, 01:00:18 PM »
anyone ever use these rings? I understand that that the ID mark goes up.  But both the upper compression rings are identical except one of em has a shiny silver outer diameter.  Which is the top ring?

Thanks.
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MATT
current bikes:  1976 CB750F, 1981 GS1100E
bikes owned:1981 GL1100I, 1990 GS500E, 1981 GS850, 1977 and 1979 GS750, 1974 CB750, 1975 CB750, and a 1982 GS750E

Offline MCRider

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Re: RK piston rings
« Reply #1 on: March 06, 2010, 01:04:27 PM »
Quote from: KRONUS0100 on March 06, 2010, 01:00:18 PM
anyone ever use these rings? I understand that that the ID mark goes up.  But both the upper compression rings are identical except one of em has a shiny silver outer diameter.  Which is the top ring?

Thanks.
Generally... the shiny silver is hardened chrome and goes on top, the compression ring.

Generally... the dark ring has a machining notch in it, but not always I suppose, and is the scraper ring.

Await further confirmation from someone who knows.
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Offline City Boy

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Re: RK piston rings
« Reply #2 on: March 06, 2010, 02:44:31 PM »
Hi.I concur,chrome ring to top,markings face up.    Rock On
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Offline MCRider

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Re: RK piston rings
« Reply #3 on: March 06, 2010, 02:48:24 PM »
Quote from: City Boy on March 06, 2010, 02:44:31 PM
Hi.I concur,chrome ring to top,markings face up.    Rock On
YEs I forgot the markings go up part.
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Ride Safe:
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1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline bucky katt

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Re: RK piston rings
« Reply #4 on: March 06, 2010, 03:10:52 PM »
i have a set in my k6 750 motor. no worries excellent compression
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Offline KRONUS0100

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Re: RK piston rings
« Reply #5 on: March 11, 2010, 02:43:16 PM »
ok cool. thanks to all who replied
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MATT
current bikes:  1976 CB750F, 1981 GS1100E
bikes owned:1981 GL1100I, 1990 GS500E, 1981 GS850, 1977 and 1979 GS750, 1974 CB750, 1975 CB750, and a 1982 GS750E
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