5.0l / 305 cid / 5.7l / 350 cid ENGINES
SERVICE MANUAL NUMBER 24
Page 3A-24
90-861327--1 OCTOBER 1999
Valve Adjustment
Engine Stopped
With valve cover removed, adjust valves when lifter is on low part of camshaft lobe.
1. Crank engine with starter or turn over in normal direction of rotation until mark on torsion-
al damper lines up with center “0” mark on timing tab. Ensure engine is in No. 1 firing
position by placing fingers on No. 1 valve as mark on torsional damper comes near “0”
mark on timing mark. If valves move as mark comes up to timing tab, engine is in No.
6 firing position and should be turned over one more time to reach No. 1 position.
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2. Adjust the following valves:
MCM and MIE Left-Hand (Standard) Rotation Engines
Exhaust - 1-3-4-8
Intake - 1-2-5-7
3. Loosen adjusting nut until lash is felt at push rod, and then tighten adjusting nut until all
lash is removed. Lash can be checked by moving push rod up and down while tightening
adjusting nut until all play is removed.
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4. Hydraulic lifters can be adjusted by tightening adjustment nut an additional one turn (360
degrees). No other adjustment is required.
5. Crank engine one revolution until pointer “0” mark and torsional damper mark are again
in alignment. This is No.6 firing position. With engine in this position, the following valves
may be adjusted as previously outlined.
MCM and MIE Left-hand (Standard) Rotation Engines
Exhaust -
2-5-6-7
Intake -
3-4-6-8
Index
