Specifications

CAUTION: Piston protrusion must be measured, to
determine cylinder head gasket thickness, if one or
more cylinder wall liners have been replaced.
NOTE: If cylinder wall liners have not been
removed; the same thickness head gasket removed,
may be used.
MEASURING PISTON PROTRUSION
(1) Use special tool VM.1010 with dial indicator
special tool VM.1013 (Fig. 66).
(2) Bring the piston of cylinder no. 1 exactly to top
dead center.
(3) Zero the dial indicator on the cylinder block
mating surface.
(4) Setup the dial indicator on the piston crown
(above the center of the piston pin) 5mm (1/8 in.)
from the edge of the piston and note the measure-
ment (Fig. 67).
(5) Repeat the procedure with the rest of the cyl-
inders.
(6) Establish the thickness of the steel gasket for
all four cylinder heads on the basis of the greatest
piston protrusion (Fig. 65).
Fig. 63 Rocker Arm Retaining Nuts
Fig. 64 Rocker Arm Assemblies
Fig. 65 Steel Type Cylinder Head Gasket—
identification
WJ ENGINE 9 - 35
REMOVAL AND INSTALLATION (Continued)