3-85. INJECTOR AND VALVE ADJUSTMENT
THIS TASK COVERS:
Torque driver (15434) ST-669
Rocker arm housing assembly installed (para. 3-84).
SPECIAL ENVIRONMENTAL CONDITIONS
Work area clean and away from blowing dirt and
Automotive repairman MOS 63H
GENERAL SAFETY INSTRUCTIONS
Injector specifications and valve clearances given are for a cold engine only. Do not use
these specifications or clearances for a warm or hot engine or damage will result to related
Engine cylinders are numbered in sequence, starting at front with No. 1 cylinder. The
engine firing order is 1-5-3-6-2-4.
The valves and injectors for the same cylinder are not adjusted at same index mark on
accessory drive pulley. One pair of valves from one cylinder and one injector on a
different cylinder are adjusted at each pulley index mark before rotating accessory drive
to next index mark.
Two crankshaft revolutions are required to adjust all valves and injectors.
Accessory drive pulley
a. Remove paint on timing
Use a medium-grit emery cloth.
marks A (2), B (3), and C (4).
Only the A (2), B (3), and C (4)
timing marks will be used for
injector and valve adjustment.
b. Rotate engine crankshaft clock-
Do not use nut (5) on the
wise until line in front of timing
accessory drive pulley assembly (1)
mark A (2) aligns with pointer (6)
to rotate. The intake and exhaust
on front gear cover (7).
rocker lever assemblies (10) for
cylinder No. 5 will be loose. If they
are not, rotate crankshaft another
360 and realign the A mark (2).