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Old 18-05-2010, 16:58   #16
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Congratulations on solving it! That's weird though. Why would the crankcase need to be pressurized to make oil pressure? You shouldn't have pressure in the crankcase if the breather is working, or does the Perkins work differently?

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Old 18-05-2010, 17:11   #17
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Congratulation, but strange. Maybe an airlock?

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Old 19-05-2010, 07:19   #18
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You would think if the pickup was submerged, that it wouldn't make a difference one way or the other. All I can tell you is that I shut the pitcock and I was making pressure again. Who knows, with my luck lately it's probably the sign of a worn out engine!
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Old 19-05-2010, 16:14   #19
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I"ve missed something or I'm confused because I can't seem to connect closing the drain petcock with solving an oil pressure problem. Wait a second, is it possible the drain system is tee'd with the oil pickup tube? That is a scary thought with disaster writen all over it. If it were my engine I'd keep searching till the interaction between the drain petcock and oil pump was completely understood, and possibly eliminated. I'm very pleased to hear you have oil pressure again though.

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