Chapter 10: Crankshaft, piston and Connecting Rod
91
NOTE: The top ring is symmetrical and the mid-
dle ring has a tapered profile. The larger radius
of the middle ring should face the crankshaft.
See Figure 10.13.
6. Measure the distance between the ring and the
ring land using a feeler gauge and compare the
measurement to the chart at the end of this
chapter. See Figure 10.14.
Figure 10.13
Top piston ring
Middle piston
3-piece oil ring
ring
Figure 10.14
Feeler gauge
Connecting rod inspection
1. Inspect the connecting rod for cracks or any
signs of damage.
2. Install the rod cap and tighten to a torque of 102
-111 in-lbs (11.5-12.5 Nm)
3. Measure the inside diameter of the connecting
rod and compare the measurements to those
listed in the chart at the end of this chapter.
See Figure 10.15.
NOTE: Take two measurements 90 degrees
apart. This will check the out of roundness of the
connecting rod.
NOTE: Connecting rods are not available as ser-
vice parts. If the connecting rod is bad, the
engine must be short blocked.
4. Take the crankshaft journal measurement and
subtract it from the connecting rod measurement
to get the connecting rod to journal running
clearance. Compare that number to the one
listed in the chart at the end of this chapter.
Figure 10.15
Measure at
right angles
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