Forum Discussion
Ivylog
May 04, 2013Explorer III
Tapping on the governor will not hurt, but it's function is to put 120psi air to the unloading valve in the compressor to stop building air. The unloading valve is like a normally closed switch so the pump should put out air without a working governor.
Assuming no air leaks, broken hoses, or air coming out of the air dryer I would start by taking the hose off from the inlet to the air compressor and put your hand on the inlet and see if you have suction... not pulsating air or no indication. If no indication of air movement then I'd remove the two large bolts on the top of the heads and see if something is holding one of these oneway valves open. If you have pulsating air, then remove the two bolts that hold the air intake elbow off and see if there is any movement of the unloading valve with the engine running. Hopefully there is something holding this valve open. If no suction or pulsating air, then the drive for the pump is broken. This may help in understanding this system.
Assuming no air leaks, broken hoses, or air coming out of the air dryer I would start by taking the hose off from the inlet to the air compressor and put your hand on the inlet and see if you have suction... not pulsating air or no indication. If no indication of air movement then I'd remove the two large bolts on the top of the heads and see if something is holding one of these oneway valves open. If you have pulsating air, then remove the two bolts that hold the air intake elbow off and see if there is any movement of the unloading valve with the engine running. Hopefully there is something holding this valve open. If no suction or pulsating air, then the drive for the pump is broken. This may help in understanding this system.
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