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Posted: Thu Nov 08, 2012 10:32am

Post Subject: Lister Canalstar LPWS4

My engine has done 5000hrs, burns no oil and doesnt smoke, however when its in the rev range for normal cruising i.e. 1200-1600 rpm. at certain engine loads it grunts and the exhaust note is quite course. I have spoken to several people and demonstrated the problem, but at the moment no one has come up with any suggestions. Can you help???


Posted: Thu Nov 08, 2012 3:44pm

Post Subject: Lister Canalstar LPWS4

If this has only started in the last few weeks I would suspect leaves around the prop. Try giving it a burst of reverse and see if that clears it. If so its leaves. Failing that I have a feeling that certain of the more modern Listers use hydraulic valve lifters so the first thing to do is to check to see if yours does. If it does then I would suggest that when the next oil and filter change is due you got to your local motor factors and buy some flushing ADDITIVE (not flushing oil) and follow the directions on the can. All sorts of odd things can happen when hydraulic valve lifters clog up. For the sake of completeness I would also like to see what comes out of the fuel filter when it is changed. Also what the inside looks like. Tony Brooks

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