Thread: Overheating
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Old 11-12-2018, 02:06 PM   #17
kapnd
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City: hawaii
Vessel Name: #31
Vessel Model: ex-Navy MUB 50 fish/cruise
Join Date: Aug 2013
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Quote:
Originally Posted by Durant F View Post
The mixing elbows tend to do this if operated at continual low rpm and not “cleared out” every other run with a full or close to full throttle bust for 5-+ minutes.
Are you referring to the rust plugged water passages?
Or might you be referring to the soot on the inside of the elbow?
It’s the cooling jacket that is under discussion here.
A fresh water flush following use goes a long ways towards preventing situations like this.
Shame on Volvo (and Perkins, Yanmar and Lehman) for using cast iron for the exhaust elbow! You know their engineers know better...
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