Specifications

DESCRIPTION SPECIFICATIONS
Center bearing diameter
Nominal ................... 63.050-63.093 mm
−0.25 ..................... 62.800-62.843 mm
−0.125 .................... 62.925-62.968 mm
Clearance between journal and
bearing: 0.030-0.088 mm
Rear journal diameter
Nominal ................... 79.980-80.000 mm
−0.25 ..................... 79.730-79.750 mm
−0.125 .................... 79.855-79.875 mm
Rear bearing diameter
Nominal ................... 80.045-80.070 mm
−0.25 ..................... 79.795-79.820 mm
−0.125 .................... 79.920-79.945 mm
Clearance between journal and
bearing: 0.045-0.090 mm
Wear limit: 0.200 mm. .......................
Connecting rod journal
Nominal ................... 53.940-53.955 mm
−0.25 ..................... 53.690-53.705 mm
−0.125 .................... 53.815-53.830 mm
Connecting rod bearing
Nominal ................... 53.977-54.016 mm
−0.25 ..................... 53.727-53.766 mm
−0.125 .................... 53.852-53.891 mm
Clearance between journal and
bearing: 0.022-0.076 mm
Wear limit: 0.200 mm
Crankshaft end play ........................
End play .................... 0.080-0.280 mm
Adjustment .................. Thrust washers
Thrust washers available: ......... 2.31-2.36 mm
2.41-2.46 mm
2.51-2.56 mm
Main bearing carriers
Internal diameter
Front ..................... 67.025-67.050 mm
Center .................... 66.670-66.687 mm
Rear ...................... 85.985-86.005 mm
Liners
Internal diameter ............ 91.997-92.015 mm
Protrusion ..................... 0.01-0.06 mm
Adjustment .......................... Shims
Available shims: .................... 0.15 mm
0.17 mm
0.20 mm
0.23 mm
0.25 mm
Cylinder head
Minimum thickness ............ 89.95-90.05 mm
Gaskets thickness .... 1.41 mm +/− 0.08, 0 notches
1.61 mm +/− 0.08, 1 notch
1.51 mm +/− 0.08, 2 notches
DESCRIPTION SPECIFICATIONS
End plates:
Height ...................... 89.92−90.00 mm
Connecting rods
Weight (without the crank bearing): 966 grams
Small end bearing
Internal diameter
Minimum ....................... 30.035 mm
Maximum ....................... 30.050 mm
Crankshaft bearings
Standard Internal diameter . . . 53.977−54.016 mm
Pistons
Skirt diameter .............. 91.918-91.932 mm
(measured at approximately 10 mm above the
bottom of the skirt).
Piston clearance: .............. 0.065-0.083 mm
Top of piston to cylinder head ...... 0.80-0.89 mm
Piston protrusion .......... 0.53 - 0.62 Fit gasket
Number (1.41), 0 notches or holes
0.73 - 0.82 Fit gasket
Number (1.61), 1 notch or hole
0.63 - 0.72 Fit gasket
Number (1.51), 2 notches or holes
Piston pins
Type ......................... Fully floating
Pin diameter ............... 29.992-29.996 mm
Clearance .................... 0.004-0.012 mm
Piston rings
Clearance in groove:
Top......................... 0.080-0.130 mm
Second ...................... 0.070-0.110 mm
Oil control ................... 0.040-0.080 mm
Fitted gap:
Top ......................... 0.30 - 0.45 mm
Second ....................... 0.30 - 0.45 mm
Oil control .................... 0.25 - 0.50 mm
Camshaft
Journal diameter, front ........ 53.495-53.51 mm
Bearing clearance ............. 0.030-0.095 mm
Center ...................... 53.45-53.47 mm
Bearing clearance ............... 0.07-0.14 mm
Rear ........................ 53.48-53.50 mm
Bearing clearance ............... 0.04-0.11 mm
Tappets
Outside diameter ............ 22.195-22.212 mm
Rocker gear
Shaft diameter ............... 21.979-22.00 mm
Bush internal diameter ....... 22.020-22.041 mm
Assembly clearance ............ 0.020-0.062 mm
Valves
Intake valve:
Opens ........................ 26°B.T.D.C.
Closes ....................... 58°A.B.D.C.
XJ ENGINE 9 - 47
SPECIFICATIONS (Continued)