(3) With a feeler gage measure the clearance between the drive assembly (51) and sleeve drive bearing (46). Adjust
clearance with adjusting plunger nut 7) to a value of 0.010-0.140 inch.
Refer to TM 5-3810-295-12 for procedures on installing the starting motor.
Section III. REPAIR OF RADIATOR
The radiator consists of the radiator cores, hoses, clamps, shroud, and fan guard necessary to exchange heat to the
atmosphere via the engine coolant and the radiator cores.
Refer to TM 5-3810-295-12 and remove radiator from the engine assembly.
Disassemble the radiator as shown in figure 3-3.
Inspection and Repair
Flush the inside the radiator with approved solvent. To avoid damage to the cores, do not use high pressure.
b. Clean the outside the radiator core with compressed air, steam, or water under pressure from the inside of the
c. Clear the overflow tube with compressed air.
d. Plug all opening and, using a suitable adaptor, connect an air hose to the radiator outlet pipe. Submerge the
radiator in a tank of water and apply 50 psi pressure. Check for leaks and mark them.
e. Repair leaks using soft solder (34 to 35 percent tin and 55 65 percent lead). Use zinc chloride or resin flux.
Straighten bent or damaged fins that could restrict air flow.