Neil_P
New member
I have a similar problem to Julian. (gonefishing) The starboard engine (Volvo AQ151) overheats when reving above 3500rpm under load. All appears ok at slow revs, load or not and at higher revs with no load.
I think I may have picked up a plastic bag on the leg as I noticed one just as it went under the starbord side of the bow a couple of minutes before the problem. Could this have been drawn over the intake and starved the raw water system?
The problem was first noted when travelling at 20 knots plus but remained after slowing. After the engine had been shut down for a few minutes it cooled immediately on restarting but overheated after speeding up.
I have checked filters etc. Thoughts are that the raw water impellor may be damaged by a lack of water or the high temperature.
Any other ideas?
Neil
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I think I may have picked up a plastic bag on the leg as I noticed one just as it went under the starbord side of the bow a couple of minutes before the problem. Could this have been drawn over the intake and starved the raw water system?
The problem was first noted when travelling at 20 knots plus but remained after slowing. After the engine had been shut down for a few minutes it cooled immediately on restarting but overheated after speeding up.
I have checked filters etc. Thoughts are that the raw water impellor may be damaged by a lack of water or the high temperature.
Any other ideas?
Neil
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