Mixed up piston rings

DocPhil

DocPhil

Location
Michigan
Hi guys. I was tearing the cylinder apart to do a head and B pipe and stupidly popped the pistons out of the cylinders. I couldn't get the pistons back in so I took the rings off and stupidly forgot to label them.

So now I have 4 rings and a cylinder and no clue which ones go where. Is there any way to tell? I noticed the rings are tapered at one end. Do these go in the same direction? Any other way to tell?

The ski only has 20 hours on it. I rode it stock this summer with plans to do a head and pipe and a few other mods this winter. Is it safe to just put them wherever? What about measure with a micrometer? Thanks

Phil
 
DocPhil

DocPhil

Location
Michigan
Thanks @air blair . In your second sentence do you mean to see which ring goes where? Are they different sizes?

I was just reading some threads about dudes blowing up top ends due to incorrect ring install. I want to make sure I do this right. Anyone have a link to directions or a thread on this?

I was debating honing the cylinder and getting some new rings so its 100% right or is this overkill?
 
Zero Client

Zero Client

BeerrroooOOOT!!!
Location
Douglasville, GA
Since you have the rings off, might as well check their clearance to see if they are still usable. Too much or too little clearance is a problem.

Kind of like this:

astra-j-6199.jpg
 
Zero Client

Zero Client

BeerrroooOOOT!!!
Location
Douglasville, GA
1. Install the piston rings to the cylinder as shown (1) and measure the piston ring end gap.
2. If the clearance is greater than the specifications, the piston rings must be replaced.
 
DocPhil

DocPhil

Location
Michigan
I want it done right so I will probably just hone and new rings. Anyone have a link to ddirections on ring install?

Just lube up the rings and taper down on top and taper up on bottom and set on pins? Easy as that?

You guys use any glue on the base gasket or head gasket?
 
Zero Client

Zero Client

BeerrroooOOOT!!!
Location
Douglasville, GA
Yamabond, 1211, or permatex the right stuff.

Yes 2-stroke oil as it'll just burn off better than any shelf asm lube


Sounds like you need some help. Maybe try finding a local engine builder
 
DocPhil

DocPhil

Location
Michigan
Zero Client said:
Yamabond, 1211, or permatex the right stuff.

Yes 2-stroke oil as it'll just burn off better than any shelf asm lube


Sounds like you need some help. Maybe try finding a local engine builder
Click to expand...

Isnt that what this site is for? Lol.

Don't learn nothing when someone else builds it for you.

So you use yamabond on the base or just a new base gasket? Doesn't look like OEM has any bond.
 
Zero Client

Zero Client

BeerrroooOOOT!!!
Location
Douglasville, GA
I sometimes apply the thinnest layer possible to both sides of the gasket, but it shouldn't be necessary really. If you are re-using any gaskets do this. Do NOT re-use a base gasket. period.
 
Big Kahuna

Big Kahuna

Administrator
Location
Tuscaloosa, AL
Look at the ends of the rings. There is a step end them. Now look at the piston ring grooves. Find the retaining pin. You will see that the rings will only go one way and clear the pin. Gaskets. Three bond is fine bit not required. Best thing is to get a shop manual.

Sent from my SAMSUNG-SM-G930A using Tapatalk
 
DocPhil

DocPhil

Location
Michigan
air blair said:
eBay I think probably. Perhaps you can even download one. Good for torque specs and tolerance numbers. Very handy


Sent from my iPhone using Tapatalk
Click to expand...
saw one for 70 bucks on RIVA. Anyone have any free downloads they recommend? I don't mind paying but 70 bucks? DAAAYYYUMMMM!
 
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