Overheating

gardnersf

Member
Member
Joined
May 12, 2004
RO Number
13607
Messages
813
I overheated yesterday. Engine clicked under load and temp jumped up. I lost some RPM's (3300 to 3000) before I throttled down. I haev a RWC twin 4.3L with alphas. This is my port engine which is about 4 years old (rebuilt) manifolds and risers were changed this spring.;

Also in my case, I'm having trouble keeping my alternatorwater circulating belt tight. The alternator bracket is not loosening, but I now have an inch of slack on it. I had a little less than 1/2" yesterday when I tightened. it.

Question time:

1. What casues the clicking sound when I overheated? It happened twice today, the second time I think my rubber elbows were getting hot as I smelt a little burning rubber smell.

2. What are the possible casues?? INtakes were not clogged, but I could have grabbed some crap somewhere, I was not in shallow water at all this weekend but there is always some seaweed here and there.

3. Could the circulating pump be part of the problem How can I tell?

Now when I run the engine at idle, it keeps the temperature pretty low. Is there any risk running the engine in trawler mode?

I haven't been back to the boat to do mroe investigation, but the risers were cool to the touch when I ran the engine for 15 minutes or so at the dock.

Thanks,
 
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