Sunday, May 6, 2018

Selva Madeira 40 compression test

Today I tested the compression for both cylinders. I have not done this previously so I was curious about the results. I did the test when the engine was cold and throttle was set to high idle position. The compression was a little above 130 PSI for both cylinders.
I don't have the service manual so I don't know where it should be, at least this is not a low value which is good. My outboard model is after all Selva 40, the 40 XS and 50 models have different engine heads so they might have even higher compression.


No comments:

Post a Comment