View Full Version : Ironhead piston rings - stupid question

14th July 2010, 13:14
Howdy all -

I'm putting the top end of my '81 back together. My rings don't have a dot or "T" to mark the top, so I'm trying to figure out how they go in. The FSM says to put the "chamfered side up" - does that mean like this?

and not like this?

14th July 2010, 13:33
Yes you are correct the chamfered side would be up as in the first illustration l_\

14th July 2010, 13:41

I felt stupid even asking, but after all the money getting it bored out and whatnot I'd hate to put 'em in upside down......


14th July 2010, 14:16
I was always told the only stupid question is the one that isn't asked. You certainly aren't gonna be judged or ridiculed from this direction. Everybody was a noob once, and some still are.

14th July 2010, 16:24
You do know to ck end gap on the rings right.

14th July 2010, 16:35
tried to fit some new rings to my triumph recently.
Lucky I checked the gap as they where 2 mm!.

phoned the dealer who sent me them and he said "dont use them there s**t".
After some debate he sent me a set of decent ones free.
Rings should be marked compression ,scraper and oil by the way.

14th July 2010, 18:15
Yep, I checked the gap. I've just never seen rings that weren't marked, and since there's an obvious bevel on the top 2 rings, I knew one side had to be "up."

Thanks again,

14th July 2010, 19:55
yep chamfered side up,I put them in upside down once mine werent marked either,it ran fine but smoked like a bitch because it dragged the oil up into the combustion chamber instead of down like it was suppossed to.