Merc 4.3 water discharge temps on each side

[rogressem]

I notice that the temperature of the water discharge on the left side (port) is much warmer, and of much less volume than that on the starboard side. I've had this boat for a few years, and I don't recall noticing this before - maybe I just wasn't paying attention when flushing the engine. I didn't measure the temp of the water being discharged, but I can hold my hand in the water on the starboard side, and too hot on the port side.

Overall engine temp seems ok, fairly steady at 170.

Its 2007 Sea Ray 185, 4.3L

I see at least one other thread that this can be normal, but I just don't remember noticing this before. Is there anything I should be worried about here?

Thanks.

 

[Don S]

Re: Merc 4.3 water discharge temps on each side

It's very common. Especially on muffs and at low rpms. In the water with some rpms they even out.