Jeep Cherokee 2000 Service Manual - page 1139
INSPECTION—CRANKSHAFT JOURNALS
(1) Using a micrometer, measure and record crank-
shaft connecting rod journals, take reading of each
journal 120° apart. Crankshaft journal diameter is
53.84 to 53.955mm (2.1196 to 2.1242 in.).
(2) Crankshaft journals worn beyond limits or
show signs of out of roundness must be reground or
replaced. Minimum reground diameter is 53.69mm
(2.1137 in.).
BEARING-TO-JOURNAL CLEARANCE
Compare internal diameters of connecting rod with
crankshaft journal diameter. Maximum clearance
between connecting rod and crankshaft journals.022
to.076mm (.0008 to.0029 in.).
CYLINDER WALL LINER ASSEMBLY
INSPECTION
The cylinder walls should be checked for out-of-
round and taper with dail bore gauge. The cylinder
bore out-of-round is 0.100 mm (.0039 inch) maximum
and cylinder bore taper is 0.100 mm (0.0039 inch)
maximum. If the cylinder walls are badly scuffed or
scored, new liners should be installed and honed, and
new pistons and rings fitted.
Measure the cylinder bore at three levels in direc-
tions A and B (Fig. 77). Top measurement should be
10 mm ( 3/8 inch) down and bottom measurement
should be 10 mm ( 3/8 inch.) up from bottom of bore.
Fig. 74 Connecting Rod Identification
1 – CAMSHAFT SIDE
2 – 2–DIGIT NUMBER FOR WEIGHT CATEGORY
3 – 4–DIGIT REFERENCE NUMBERS FOR CORRECT
ASSEMBLING
Fig. 75 Piston and Connecting Rod Assembly
Fig. 76 Bearing Clearance
Fig. 77 Liner Inspection
XJ
ENGINE
9 - 45
CLEANING AND INSPECTION (Continued)