Piston Rings Install

[skatetheame]

So I got some new rings for my CB360T in today. 3 of them any way and the second ring looks a little different than the one in the shop manual. I'm just wondering which way to install it. I don't want to install it upside down. Here's the diagram in the manual.

And here is what the ring looks like.

And here is the profile that I drew in MS paint.

So does the notch point up like in the profile or should it be pointing down?

 

[joevirus563]

wow... i've never saw rings like that... are you sure that they are for CB360t AND not four?

 

[skatetheame]

Yep. I already put the bottom ring on and it fits perfect. Also I don't think there is a CB360 Four.

 

[Tim]

Do both top rings look like that?

 

[skatetheame]

Na the top ring is the same as in the manual.

 

[skatetheame]

So I just noticed there is a small "R" on one side of each ring beside the gap. Is this an indication or marker on which way the rings should be put on?

Ok so I just read at http://www.dansmc.com/pistons.htm that the markings on the rings should be intalled facing up, but if anyone knows different please let me know.

 

[GLENNWOOD55CAMEO]

According to the chart on the link you provided above that looks like a stepped oil scraper and I agree the mart should go to the top....

 

[frogman]

That looks like the same set I got for my 360, the R's go up. They changed the style of them, no biggie they still work fine. Least in my baby they do. ;D

 

[ctcranor]

Just installed the same rings and I installed the very little, hard to see, mark up on all three rings. It was the only indication I could find.


Chris

 

[iagsxr]

Mark always goes up.

 

[skatetheame]

Cool, I installed them with the R up just waiting for the other set to come in tomorrow. Should have the bike back together and running this weekend!

 

[crazypj]

The 'R' means they are 'Regular' (standard sized) rings
They can also be marked 'N' (Normal) or S (Standard)
Oversized will usually tell you, 0.25. 0.50, 0.75, 1.00 which is increase in bore size (in MM)
Always check for markings on top face of ring.