Join Date: Jul 2002
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volvo penta web site or forum??? HELP!
UPDATE ON OVERHEATING VOLVO!!!! found the mixing elbow cloged with rust, cleaned! no change. installed new thermostat, no change. new impeller in pump, no change. removed drain plug for block (rear lower end of block) not a drop of water came out. removed upper plug forward, water drained out of this one. poked around in lower one, then put a pipe fitting in it with adapter to hook up to shore water hose to hopefully break free the crap built up in block by back flushing. did this a couple of times with out any luck.
so it seems that it will be used the rest of the season running at 2000 rpm. at this rpms it runs at 200deg. and will move the boat at 5 knots, slow, but still gets there. looks like the old remove it over the winter, rebuild it, and have the block boiled out.