PISTONS AND CONNECTING RODS (CONT) - TM-5-4320-300-14

PISTONS AND CONNECTING RODS (CONT) - TM-5-4320-300-14_467

TM-5-4320-300-14 Pump Centrifugal Self-Priming Gasoline Engine Driven; 6-Inch 1500 GPM Capacity At 60 Foot Head Manual
Page Navigation
461

TM 5-4320-300-14 6-10. PISTONS AND CONNECTING RODS (CONT) Location/Item Action Remarks 21. Piston-to- Hold piston upside down in liner clear- cylinder liner (liner in block). ance When performing piston-to- liner clearance inspection, use a feeler gage that is perfectly flat and free of all nicks and bends. Use a spring scale to select a feeler gage with a thickness which will require a pull of 6 pounds (2.7 kg) to remove. The clearance will be 0.001 inch (0.0254 mm) greater than the thick- ness of the feeler gage used. If binding occurs, inspect piston and liner for burrs. Remove burrs with a fine hone and re- check clearance. Piston-to-liner clearance (with new piston and liner) should be 0.0031 to 0.0068 inch (0.0787 to 0.1727 mm). A maxi- mum clearance of 0.010 inch (0.254 mm) is allowable with used parts. NOTE Each piston is fitted with a fire ring, three compression rings, and two oil control rings. The top compression (fire) ring can be identified by the bright chrome on the bottom side and oxide (rust color) on the top. The second compression ring can be identified by its cast iron construction. A two-piece oil control ring is used in both oil ring grooves. All new piston rings must be installed whenever a piston is removed, regardless of whether a new or used piston or cylinder liner is installed. 22. Piston ring Use piston to push new rings, one at a time, Push ring in far gap down into the cylinder liner. With a feeler enough to be in the gage, measure ring gap according to the normal area of ring following chart. travel. 6-84

Privacy Statement
Press Release
Contact