INSPECTION
INSPECTION - VALVES
(1) Measure valve stems for wear (Fig. 32) approx-
imately 60 mm (2.36 in.) below the valve lock
grooves.
(2) Compare measurement to specifications, (Refer
to 9 - ENGINE - SPECIFICATIONS).
NOTE: Valve stems are chrome plated and should
not be polished (Fig. 32).
INSPECTION - 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. 33).
(4) Move valve to and from the indicator.
(5) Note dial indicator reading and compare to
engine specifications. (Refer to 9 - ENGINE - SPEC-
IFICATIONS)
NOTE: Replace cylinder head if stem-to-guide clear-
ance exceeds specifications, or if guide is loose in
cylinder head.
INSTALLATION
(1) Coat valve stems with clean engine oil and
insert them in cylinder head.
(2) If valves or seats have been reground, check
valve tip height (A) (Fig. 34). If valve tip height is
greater than 43.65 mm (1.7185 in.) intake or 45.98
mm (1.8102 in.) exhaust, grind valve tip until within
specifications. Make sure measurement is taken from
cylinder head surface to the top of valve stem.
(3) Install valve stem seals and valve springs.
(Refer to 9 - ENGINE/CYLINDER HEAD/VALVE
STEM SEALS - INSTALLATION) (Refer to 9 -
ENGINE/CYLINDER HEAD/VALVE SPRINGS -
INSTALLATION)
Fig. 31 Valve Seal and Spring - Installation
1 - VALVE
2 - VALVE RETAINING LOCKS
3 - VALVE SPRING RETAINER
4 - VALVE SPRING
5 - VALVE SEAL AND VALVE SPRING SEAT ASSEMBLY
Fig. 32 Intake and Exhaust Valves
1 - MARGIN
2-FACE
3 - STEM
4 - VALVE SPRING RETAINER LOCK GROOVES
Fig. 33 Measuring Valve Guide Wear
9 - 118 ENGINE 3.5L LH
INTAKE/EXHAUST VALVES & SEATS (Continued)
To Next Page
Loading...
Need help?
General
