N
nmoye1
Guest
"I just bought a 1986 Searay m
"I just bought a 1986 Searay mid-cabin with a 230 mercruiser V-8.When I bought the boat the owner stated to me the engine needed a new water pump due to it overheating on him.He stated that the last time he took the boat out it overheated on him and caught the two exhaust bellows on fire.He stated that it was because barnacles were covering the intake holes in the sterndrive.Since I bought the boat I have replaced the water pump in the drive unit.The old one did not appear to be in bad shape at all.I remved the water intake pieces in the drive leg and cleaned them of all barnacles and reinstalled them.I also checked for any obstructions from the intakes to the gimbal.All seem great.I then replaced the exhaust bellows.I took the thermostat housing apart and found the thermostat to be rusty and in unknown condition along with some debris sitting on top of it.I replaced the thermostat and then reassembled the thermostat housing.While the thermostat housing was apart I ran a hose to flush out the engine block and all hoses.My problem is that the engine runs at 150 to 160 degrees at an idle or just above without overheating, but when I go any faster and try to get up on a plane the temp quickly rises.When I bring it back to an idle the temp goes back down.I also noted white smoke at the back of the boat and the exhaust smells kind of rich.I verified the correct engine timing at idle.I took the exhaust manifolds and elbows off but unsure what to look for on these.The exhaust manifolds appear to be in good shape but the exhaust elbows I don't know.Is there any way to check the operation of these items.Any help would be appreciated."
"I just bought a 1986 Searay mid-cabin with a 230 mercruiser V-8.When I bought the boat the owner stated to me the engine needed a new water pump due to it overheating on him.He stated that the last time he took the boat out it overheated on him and caught the two exhaust bellows on fire.He stated that it was because barnacles were covering the intake holes in the sterndrive.Since I bought the boat I have replaced the water pump in the drive unit.The old one did not appear to be in bad shape at all.I remved the water intake pieces in the drive leg and cleaned them of all barnacles and reinstalled them.I also checked for any obstructions from the intakes to the gimbal.All seem great.I then replaced the exhaust bellows.I took the thermostat housing apart and found the thermostat to be rusty and in unknown condition along with some debris sitting on top of it.I replaced the thermostat and then reassembled the thermostat housing.While the thermostat housing was apart I ran a hose to flush out the engine block and all hoses.My problem is that the engine runs at 150 to 160 degrees at an idle or just above without overheating, but when I go any faster and try to get up on a plane the temp quickly rises.When I bring it back to an idle the temp goes back down.I also noted white smoke at the back of the boat and the exhaust smells kind of rich.I verified the correct engine timing at idle.I took the exhaust manifolds and elbows off but unsure what to look for on these.The exhaust manifolds appear to be in good shape but the exhaust elbows I don't know.Is there any way to check the operation of these items.Any help would be appreciated."