TM 5-3805-248-23-1
ENGINE, EXHAUST AND COOLING SYSTEM TROUBLESHOOTING PROCEDURES - CONTINUED
0009 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2.
Engine Cranks, but Will
b. Disconnect fuel lines and check for
1. Clean lines with compressed air and
Not Start - Continued.
obstruction (WP 0030 00 and WP
reconnect (WP 0030 00 and WP 0035
2. Replace fuel filters (WP 0037 00 and
3. Go to Test 3.
3.
Inspect fuel lines and connections for
1. If a leak is at a connection, tighten.
leaks, obstructions and damage.
2. If a leak results from cracked, split or
damaged tubing, replace tubing (WP
3. If fuel lines are OK, go to Test 4.
4.
Check fuel injection timing (WP 0273
1. Adjust fuel injection timing (WP 0273
00).
00).
2. Go to Test 5.
5.
Check for slipping fuel injection
If shaft does not rotate, remove small cover
pump drive. Remove small cover from
from timing gear cover and tighten
fuel pump drive. Crank engine and
accessory drive gear retaining nut. If
look to see if shaft rotates.
tightening corrects slipping condition,
time fuel injection pump (WP 0273 00).
3.
Engine Cranks Slowly,
1.
In cold weather, make sure proper
1. Change oil (WP 0022 00).
Hard to Start.
engine oil is being used (WP 0020 00).
2. If problem still exists, go to Test 2.
2.
Check starting/charging circuits.
If starting/charging system OK, go to Test
Refer to Electrical Troubleshooting
3.
3.
Check the ether starting aid. Refer to
4.
Engine Starting Motor
Check for broken or damaged flywheel
Operates, Does Not Engage
teeth or starter drive.
Flywheel Ring Gear.
a. Remove starting motor (WP 0057
1. If defective replace starter (WP 0057
damaged teeth.
2. If starting motor is OK, go to Step b.
b. Manually turn engine and inspect
If defective replace flywheel assembly
flywheel ring gear teeth through
(WP 0261 00).
starting motor opening in flywheel
housing (WP 0028 00).
