Re: 3cyl 65-70-75 OMC Rebuild

[DAN ANDERSON]

In particular was the bridge rounded and relieved to stop the sawing effect on the rings? Some of the improvements included, but may not be all:
Move the overboard elbow to top of block to make sure block is full of water at all times before it overboard indicates.
.002 larger HS jets
Can’t remember if they dropped timing a degree or two.
#432955 water pump kit with thermostat spring, etc. Update kit included different impeller that pumps more water (6) leg impeller instead of (3).
I don’t think any of the 49cu in stuff can be used on this engine to advantage if that was what you were asking.

Dan in TN