four winns 214
Senior Chief Petty Officer
- Joined
- Oct 25, 2008
- Messages
- 770
Engine: Mercruiser 228R Serial #6726322
This engine is installed in a 1984 Sea Ray 210SRV. It has 690 hours. The exhaust manifolds were replaced in 2006 with non-OEM parts right before I bought the boat. I replaced the thermostat last fall with an OEM part set to 142 degrees. The impeller was replaced this spring.
The engine temps are normal at all throttle settings.
A friend is concerned with the temperature of the exhaust manifolds. Measured with an infrared thermometer at mid-range throttle settings, I'm seeing 150-180 F (depending on where the thermometer is aimed) on the manifolds and 115-125 F on the elbows. I have been unable to find any published information on temperature limits. Are these temps normal? I've asked local experts and the opinions vary wildly, even among the Merc authorized shops.
This engine is installed in a 1984 Sea Ray 210SRV. It has 690 hours. The exhaust manifolds were replaced in 2006 with non-OEM parts right before I bought the boat. I replaced the thermostat last fall with an OEM part set to 142 degrees. The impeller was replaced this spring.
The engine temps are normal at all throttle settings.
A friend is concerned with the temperature of the exhaust manifolds. Measured with an infrared thermometer at mid-range throttle settings, I'm seeing 150-180 F (depending on where the thermometer is aimed) on the manifolds and 115-125 F on the elbows. I have been unable to find any published information on temperature limits. Are these temps normal? I've asked local experts and the opinions vary wildly, even among the Merc authorized shops.
