FUEL SYSTEM
TESTING AND ADJUSTING
CRANKSHAFT POSITIONS FOR FUEL TIMING AND VALVE CLEARANCE SETTING
STANDARD ROTATION (COUNTERCLOCKWISE)
- as Viewed From Flywheel End
ENGINE
CORRECT STROKE
CYLINDERS TO CHECK/ADJUST
FOR NO.1 PISTON
VALVES
INJECTORS
AT TOP CENTER
POSITION*
INTAKE
3508
COMPRESSION
1-2-6-8
1-2-3-7
3-4-5-7
EXHAUST
3-5-4-7
4-5-6-8
1-2-6-8
3512
COMPRESSION
1-3-6-7-10-12
1-4-5-6-9-12
2-4-5-8-9-11
EXHAUST
2-4-5-8-9-11
2-3-7-8-10-11
1-3-6-7-10-12
3516
COMPRESSION
1-2-5-7-8-12-13-14
1-2-3-4-5-6-8-9
3-4-6-9-10-11-15-16
EXHAUST
3-4-6-9-10-11-15-16
7-10-11-12-13-14-15-16
1-2-5-7-8-12-13-14
REVERSE ROTATION (CLOCKWISE)
- as Viewed From Flywheel End
ENGINE
CORRECT STROKE
CYLINDERS TO CHECK/ADJUST
FOR NO.1 PISTON
AT TOP CENTER
VALVES
INJECTORS
POSITION*
INTAKE
3508
COMPRESSION
1-3-4-8
1-2-7-8
2-5-6-7
EXHAUST
2-5-6-7
3-4-5-6
1-3-4-8
3512
COMPRESSION
1-3-4-6-7-12
1-4-5-8-9-12
2-5-8-9-10-11
EXHAUST
2-5-8-9-10-11
2-3-6-7-10-11
1-3-4-6-7-12
3516
COMPRESSION
1-2-5-6-7-8-13-14
1-2-3-4-5-6-9-10
3-4-9-10-11-12-15-16
EXHAUST
3-4-9-10-11-12-15-16
7-8-11-12-13-14-15-16
1-2-5-6-7-8-13-14
*Put No. 1 piston at top center (TC) position and make identification for the correct stroke. Make reference to FINDING
TOP CENTER POSITION FOR NO. 1 PISTON. After top center position for a particular stroke is found and adjustments
are made for the correct cylinders, remove the timing bolt and turn the flywheel 3600 in the direction of normal engine
rotation. This will put No. 1 piston at top center (TC) position on the other stroke. Install the timing bolt in the flywheel and
complete the adjustments for the cylinders that remain.
CYLINDER AND VALVE LOCATION
(3512 SHOWN)121
121