"I have an 89 bayliner w/ a 3.
"I have an 89 bayliner w/ a 3.0. Idle temp is 170, whether on the muffs or in the lake, when cruising on plane around 2800 rpm temp will fluctuate between 160 and 180. If i open it up to 4200 at WOT, the temp sometimes gets up to 200 - 220.. slowing down brings it back down to 180's. Knowing that either water is not getting in or out, I checked the water passages, manifold, etc for obstructions and found nothing. What I did find was interesting,, when I pulled the impellor, some of the impellor blades we not curved all the same way.... ie,, 6 were curved in the direction of rotation, and 3 or 4 had turned/ flipped the other way, spinning against the flow of water,,, has anyone ever heard of this? also the impellor cage was not round,,, it was more egg shaped,,, any ideas? A dealer put on this new impellor for me last year,,, but I figured with three bolts that it was easy to check and I reinstalled it with all of the blades curving the same way,,,, just not had time to test it yet...
thank you for any help or ideas...."
"I have an 89 bayliner w/ a 3.0. Idle temp is 170, whether on the muffs or in the lake, when cruising on plane around 2800 rpm temp will fluctuate between 160 and 180. If i open it up to 4200 at WOT, the temp sometimes gets up to 200 - 220.. slowing down brings it back down to 180's. Knowing that either water is not getting in or out, I checked the water passages, manifold, etc for obstructions and found nothing. What I did find was interesting,, when I pulled the impellor, some of the impellor blades we not curved all the same way.... ie,, 6 were curved in the direction of rotation, and 3 or 4 had turned/ flipped the other way, spinning against the flow of water,,, has anyone ever heard of this? also the impellor cage was not round,,, it was more egg shaped,,, any ideas? A dealer put on this new impellor for me last year,,, but I figured with three bolts that it was easy to check and I reinstalled it with all of the blades curving the same way,,,, just not had time to test it yet...
thank you for any help or ideas...."