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post #1 of Old 11-20-2012 Thread Starter
Good Fortune
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Troubles with Bukh

We have a raw water cooled Bukh DV20 on our Fortune 30 and we are having some troubles. The engine does not run for more than 10 or 15 minutes at a time. After that time, the engine sputters and eventually chokes out. It will start immediately afterwards, but the running time is diminished with each start.
However, if we haven't used the engine for a month or so, it can run for up to 45 minutes...but then the problems starts all over again.
One mechanic warned that the cylinder head could be warped, but we're skeptical. If it was a heating issue, wouldn't the engine have trouble starting again after it cuts out?
We've also been told that it is likely a fuel suction issue. We've disassembled both the lift-pump and fuel pump, looking for some kind of blockage, but found the innards to be astoundingly clean. And now, we're wondering what to look at next.
Any suggestions would be infinitely appreciated.
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