how hot is too hot?

jwilkey84

Chief Petty Officer
Joined
Jun 26, 2005
Messages
524
Well guys, I got the kiekahefer 58a back on the water today with the new timing belt and a different lower unit. The engine was spitting out some water like it should, but how much water should it spit out and how hot should the engine get? I could touch the top of the block, but I couldn't hold my hand there for more than 2 or 3 seconds, so I thought maybe it had quit circulating water. So we put it in gear and started driving while I watched, and it was still spitting out a little water like it should. So I touched the water coming out and to my surprise it was pretty hot. Is all of this norma? Before I put the different lower unit on, I looked at the impellor and it looked really good. I am just wanting some input before I let the engine get too hot. Granted, it was 92 degrees here in iowa today and we were pulling a skiier.
 

jwilkey84

Chief Petty Officer
Joined
Jun 26, 2005
Messages
524
Re: how hot is too hot?

I threw a little water on the engine when it was hot and it made the slightest almost couldn't hear it, but the water did sizzle slightly.
 

Texasmark

Supreme Mariner
Joined
Dec 20, 2005
Messages
14,778
Re: how hot is too hot?

Thermostats in currently built engines are in the 120-145F arena. Overtemp alarms are in the 195F arena. Water boils at sea level at 212F.......hence "sizzles".

You need to do something about your circulation. Apparently it's inadequate.

I'd start with a new impeller and check of water passages.

Mark
 
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