I finally got the 1990 OMC 2.3L Cobra running fairly well this season and have had it out a dozen times with OK performance, but not top. With all fuel and ignition components replaced she runs great under moderate throttle up to 3200 RPM (28-29mph). If I push it further, she doesn't gain any...
I replaced the impeller/housing/gaskets and wasn't getting any flow from drive to the thermostat. (Disconnected and observed the direct line hose). After burning up the pump and replacing with yet another unit, I was able to get flow only by 'priming', or pouring water down the hose from the...
