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Old 07-17-2013
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Re: Yanmar Oil Pressure Pegged

Originally Posted by Omatako View Post
It's almost sure to be the pressure sender. My engine starts at 45 psi cold and when hot drops to nothing. A little rev up and it goes back up and stays then drops again and so it fluctuates.

I have driven for hours with the gauge just above zero and the proof for me that it's the sender is that the buzzer works off a different sender and even when pressure is effectively zero, the buzzer doesn't go off and the engine runs just fine.

I'll get round to a new sender one day . . . .
Would you care to bet an engine on that? I did and lost...
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