Frank Acampora said:
Really, you should go to the forum for your engine--Mercury, I assume by your post. You should state your problem there and ask for help. Do NOT assume the engine needs rings. Outboards typically get little running time compared to other engines and worn rings are not a common problem.
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The question was related to all two strokes as I've got multiple makes laying all over the place. A substitute ring would come in handy for some of the older, obsolete makes like Elgins. I'm also bummed that a set of OB rings for two tiny 2" pistons cost more than a full set of V8 rings for a small block Chevy. Oh well.
This one in particular had a ring that fell out in two pieces when I removed the piston so it was obviously toast. That cyl had low compression and you could see through the ports that the ring was black as compared to other three that were worn silver. Believe me, I don't go looking for ring jobs.
Re: Are 2 stroke OB piston rings interchangeable w/other devices?The question was related to all two strokes as I've got multiple makes laying all over the place. A substitute ring would come in handy for some of the older, obsolete makes like Elgins. I'm also bummed that a set of OB rings for two tiny 2" pistons cost more than a full set of V8 rings for a small block Chevy. Oh well.This one in particular had a ring that fell out in two pieces when I removed the piston so it was obviously toast. That cyl had low compression and you could see through the ports that the ring was black as compared to other three that were worn silver. Believe me, I don't go looking for ring jobs.
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