Thread: Pressure Regulator Failure
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Old 02-10-2013, 02:37 PM
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Dwight Dwight is offline
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Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
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Coach had the same problem with a regulator a couple of weeks ago. I took it apart and found the diaphragm hard. I think the alcohol in ethanol gas is the problem. Rebuild kit are available from Summit and Jegs.

You replaced the old regulator with a new one so I would think you need to adjust the new one. If the regulator is working then you should be able to reduce the pressure even if it's twice what the pump should be putting out. It's easy to take the regulator apart to see if there is trash or something wrong. And easy to put it back together. Four screw. Watch for the spring and ball.

Dwight
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