Nun - when we replaced the risers, there was some flakey particles inside..we cleaned it very thoroughly. Rust-like stuff...I'm guessing that's the "scale" you speak of. We also had the guage tested and it was fine. The hoses get extremely hot but do not appear to be blocked or restricted (I replaced them at the beginning of the season). Yes, John..the thermostat is no more. I'm beginning to think I belong on shore
and these are just aggravating ways to remind me of that...
Average cost of making it an Outboard?
