Models > 921166360

921166360 Craftsman Compressor

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Diagrams for 921166360

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Manuals & Guides for 921166360

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This is an oil fill cap with a gasket seal attached. It is sold as an individual part and is used in air compressors. It connects to the crank case cover to help contain the oil inside the unit. No to...
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This is an OEM gasket kit for air compressors. The gaskets contained in this kit are designed to seal the pump assembly. These gaskets form a tight fit between components, allowing it to increase pres...
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This manifold assembly is for air compressors. The manifold assembly supplies pressurized air to connect fittings, gauges, and valves. The manifold assembly includes the pressure regulator. Unpl...
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This piston kit is for air compressors. The piston kit contains parts for rebuilding the piston and related parts. The kit may include multiple parts; refer to your parts diagram for a complete lis...
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Common Problems and Symptoms for 921166360

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Air leak
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Fixing Fixing
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No compressed air
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How to fix it
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  • Customer:
    Andrew from FORT MILL, SC
  • Parts Used:
  • Difficulty Level:
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Wrench (Adjustable)
Compressor runs but not building pressure
Could not find external leak, so assumed problem was in the cylinder head. I removed the big, black plastic shroud, and disconnected the line with the cooling fins leading from the cylinder head to the tank. I then unbolted the 4 Allen bolts holding the cylinder head to the cylinder body. I discovered the gasket that sits on top of the valve plate was shredded in the center piece that separates the intake port from the exhaust port. I put in new reed valves (PS10044654) and replaced the blue gasket between the cylinder and the lower valve plate and the metal gasket between the valve plates and the blue gasket on top of the upper valve plate. The gaskets are part of gasket kit PS10044723. I had to scrape the old blue gaskets off, which was the most time consuming part of the repair. I used valve grease to hold the reed valves in place during re-assembly. I did not use the gasket at the base of the cylinder or the gasket that is used for the crank case cover since neither was removed. Reinstalled the Allen bolts, the line to the tank from the cylinder head and the plastic shroud. Compressor works fine now.
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