NOTE: Valve stems are chrome plated and should
not be polished (Fig. 109).
(3) Remove carbon and varnish deposits from
inside of valve guides with a reliable guide cleaner.
CHECKING VALVE GUIDES
(1) Measure valve stem-to-guide clearance as fol-
lows:
(2) Install valve into cylinder head so it is 15 mm
(0.590 inch.) off the valve seat. A small piece of hose
may be used to hold valve in place.
(3) Attach dial indicator Tool C-3339 to cylinder
head and set it at right angle of valve stem being
measured (Fig. 110).
(4) Move valve to and from the indicator. Refer to
Engine Specifications.
VALVE GUIDES
NOTE: Replace cylinder head if stem-to-guide
clearance exceeds specifications, or if guide is
loose in cylinder head.
OIL PUMP
INSPECTION AND REPAIR
(1) Clean all parts thoroughly. Mating surface of
the oil pump housing should be smooth. Replace
pump cover if scratched or grooved.
(2) Lay a straightedge across the pump cover sur-
face (Fig. 111). If a 0.025 mm (0.001 inch.) feeler
gauge can be inserted between cover and straight
edge, cover should be replaced.
Fig. 108 Cam Follower Assembly
1 – LASH ADJUSTER POCKET
2 – OIL SQUIRT HOLE
3 – ROLLER
Fig. 109 Intake and Exhaust Valves
1 – MARGIN
2–FACE
3 – STEM
4 – VALVE SPRING RETAINER LOCK GROOVES
Fig. 110 Measuring Valve Guide Wear—Typical
Fig. 111 Checking Oil Pump Cover Flatness—
Typical
1 – STRAIGHT EDGE
2 – FEELER GAUGE
3 – OIL PUMP COVER
9 - 64 2.7L ENGINE LH
CLEANING AND INSPECTION (Continued)
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