09-05-2021, 09:25 PM
(This post was last modified: 09-05-2021, 09:40 PM by Bob Culver.)
Service manual of the 1980s often included ring gap spacing details. I have a selection which cover nearly every combination!
I read somewhere that huge ship engines had some bore device which monitored oil film thickness or somesuch and this detected when the the ring gap was slowly rotating by.
For anyone who has followed all this, comparison with the pistons in the current ring ompressor post may be of interest.
Possibly on two strokes the rings were reversed to reduce the chance of catching in ports.
I read somewhere that huge ship engines had some bore device which monitored oil film thickness or somesuch and this detected when the the ring gap was slowly rotating by.
For anyone who has followed all this, comparison with the pistons in the current ring ompressor post may be of interest.
Possibly on two strokes the rings were reversed to reduce the chance of catching in ports.