Join Date: Mar 2007
Location: Rouge Island
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Not an affront, just being inquisitive on a rainy day. Fuel polishing is recommended every few years with larger tanks, but Racor filters seem to work fine for me, and frequent bleeding of the fuel lines, including injectors is good practice.
I’m on my third Yanmar, in third boat, and am pleased with their performance.
If you get a chance some tech schools teach weekend seminars on practical diesel engine troubleshooting.