TM 5-3895-382-24 7. The engine is operating with too much load. Reduce the load. 8. The timing of fuel injection pump is incorrect. Adjust the timing. Problem 22 The exhaust temperature Is too high. Probable Cause 1. A restriction exists in the air inlet or the exhaust system. Remove the restriction. 2. The timing of the fuel injection pump is incorrect. Adjust the timing of the fuel injection pump. Problem 23 The   staring   motor   does   not   turn.      The   starting   motor slowly turns. Probable Cause 1. The battery is discharged. Charge the battery.  Replace a defective battery. Clean all cable terminals and battery  posts.    Apply  the 1  U-8267   Battery   Saver   and   Cleaner   on   the   cable clamps and the battery posts.  lighten the cable clamps on the battery posts. 2. The terminals or the brushes of the starting motor have a short circuit to ground. Find the short circuit.  Repair the short circuit. 3. The  brushes  of  the  starting  motor  do  not  seat  against the commutator correctly. The   brushes   am   worn,   broken,   oily   or   dirty.      The brushes must be cleaned or replaced.  Clean the brush holders. 4. The ignition switch, the starting motor solenoid, or the start relay is damaged. Replace the ignition switch, the starting motor solenoid, or the star relay. 5. An excessive voltage drop exists in the cables or across the terminals in the circuits for the starting motor.  The cables are loose at the terminals, corroded, or cracked. The terminals are corroded or broken. Inspect the cables and terminals for loose connections, corrosion or other damage. Problem 24 The  staring  motor  turns,  but  the  pinion  gear  does  not engage the flywheel ring gear. Probable Cause 1. The pinion drive or the overrunning clutch is defective. Replace the pinion drive or the overrunning clutch. 2. The ring gear of the flywheel is damaged. Replace the ring gear of the flywheel. 3. The shift lever or the linkage is damaged. Replace the shift lever or the linkage. 4. The starting motor solenoid is damaged. Replace the starting motor solenoid. 5. The   armature   or   idler   gear   of   the   starting   motor   is damaged. Replace the armature or idler gear. Problem 25 The  engine  does  not  crank  when  the  staring  motor  is activated.  The pinion gear engages the ring gear and the flywheel begins to turn. Probable Cause 1. The battery has a low charge. Refer to Problem 23. 2. The brush pressure on  the  commutator  of  the  starting motor is inadequate. Check the tension of the spring for the brush.  Refer to Problem 23. 3. The star relay is defective. Replace the start replace. 6-46