VPA 7748089 English 09-2007 111
Engine — 5.0 & 5.7 Litre
17. Inspect the connecting rod for twisting.
18. Inspect the connecting rod for damage to the bearing cap and
bolt threads.
19. Measure the piston compression ring end gap.
NOTICE! Fit each compression ring to the cylinder in which it
will be used.
20. Place the compression ring into the cylinder bore.
a. Push the compression ring into the cylinder bore to approxi-
mately 6.5 mm (0.25 in) above the ring travel. The ring must
be square to the cylinder wall.
b. Use a feeler gauge in order to measure the end gap.
c. Select another size ring set if the end gap exceeds specifi-
cations. Engine Specifications 5.0 Litre on page 139 .
Piston Selection
Tools Required
J 8087 Cylinder Bore Gauge
NOTICE! Measurements of all components should be taken
with the components at normal room temperature.
For proper piston fit, the engine block cylinder bores should not have
excessive wear or taper.
A used piston and piston pin set may be reinstalled if, after cleaning
and inspection, the piston and piston pin are within specifications.
1. Use the J 8087 in order to measure the cylinder bore diameter.
Measure at a point 64 mm (2.5 in) from the top of the cylinder
bore and 90 degrees to the crankshaft centerline.
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