Failure of the head gasket
- The discharge line is blocked due to frozen water in the discharge line. The discharge line is blocked due to carbon buildup in the discharge line.
Check for low spots in the line that are causing water or debris to be trapped. Clear the discharge line or replace the discharge line. Check for carbon buildup. Replace the discharge line if carbon buildup exists.
- The governor line is blocked due to frozen water in the governor line. The governor line is blocked due to carbon buildup in the governor line.
Clear the line if a blockage exists. Replace the governor line if the governor line is damaged. Check for the proper operation of the air dryer.
- Malfunction of the governor
Repair the governor or replace the governor.
- The bolt torque for the cylinder head is incorrect.
Verify that all the bolts are torqued to the proper specifications. Refer to the section on Disassembly and Assembly for the proper torque values.
- The cylinder head has a machining imperfection.
Visually inspect the cylinder head for any imperfections. Check for flatness with a straightedge. The flatness for the cylinder head should be a maximum of 0.05 mm (0.002 inch) for a 150 mm (6 inch) span.
- The cylinder head gasket is faulty.
Inspect the gasket. Replace the gasket for the cylinder head if the gasket is faulty.
Replace the air compressor if problems persist.