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Old 09-10-2013
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Re: Engine turns but won't start

I'm not familiar with that particular motor, but I have experience with diesel engines in general. They need air, fuel and compression to run. Fuel is usually the problem and it sounds like you have that pretty well covered. I'd look at air next by temporarily undoing the exhaust hose off the exhaust manifold to see if the manifold is clear at the water mixing elbow. Sometimes the mixing elbow becomes so plugged up that the engine just can't breath and performance is hindered. If that's clear, I'd pop the injectors and then squirt some motor oil into each cylinder. Sometimes if an old tired motor sits for a long time, they lose some compression because of cylinder lubricant sliding past the rings. If that gets your motor started it indicates a very tired motor.
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Boating for over 25 years, some of them successfully.
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