Re: Need compression specs... Evinrude
RedRat, I have an '85 140 which I think is the same loop charged powerhead. I think the main difference between mine and the '87 is the '85 used the V6 gearcase and the newer ones use a smaller V4 gearcase. My motor has been superb, the VRO has always worked (there was a VRO II upgrade I installed in the motor's first few years).<br /><br />The repairs needed have been very few. A voltage regulator/rectifier failed a number of years ago and prop shaft seals were needed several years ago (the failure was probably due to mono wrapped around the prop shaft, because there was some evidence of grooving on the shaft.<br /><br />That's it, other than routine stuff like water pumps every few years, gear oil change every fall and new plugs every few years plus two decarb treatments. My engine has around 700 hours on it, still shows > 150 psi compression all around and runs great. One thing I attribute to lack of trouble was when motor was new I pulled the fly wheel and wrapped all of the under flywheel wiring with chafe protection material. I haven't had the flywheel off since.<br /><br />This motor still turns ~ 5700 RPM WOT and idles great. In short, I've never had a better big outboard. Good luck.
