DESCRIPTION
SPECIFICATIONS
Exhaust valve:
Opens . . . . . . . . . . . . . . . . . . . . . . . 66° B. B. D. C.
Closes . . . . . . . . . . . . . . . . . . . . . . . . 36° A. T. D. C.
Face angle:
Intake . . . . . . . . . . . . . . . . . . . . . . 55° 30
8 - 55° 408
Exhaust . . . . . . . . . . . . . . . . . . . . . 45° 25
8 - 45° 358
Head diameter:
Intake . . . . . . . . . . . . . . . . . . . . . . 40.05-40.25 mm
Exhaust . . . . . . . . . . . . . . . . . . . . . . . 33.8-34.0 mm
Head stand down:
Intake . . . . . . . . . . . . . . . . . . . . . . . . 1.08-1.34 mm
Exhaust . . . . . . . . . . . . . . . . . . . . . . . 0.99-1.25 mm
Stem diameter:
Intake . . . . . . . . . . . . . . . . . . . . . . 7.940-7.960 mm
Exhaust . . . . . . . . . . . . . . . . . . . . . 7.922-7.940 mm
Clearance in guide:
Intake . . . . . . . . . . . . . . . . . . . . . . 0.040-0.075 mm
Exhaust . . . . . . . . . . . . . . . . . . . . . 0.060-0.093 mm
Valve guide
Inside diameter . . . . . . . . . . . . . . . . . 8.0-8.015 mm
Fitted height . . . . . . . . . . . . . . . . . . . . 13.5-14 mm
Valve springs
Free length . . . . . . . . . . . . . . . . . . . . . . . 44.65 mm
Fitted length . . . . . . . . . . . . . . . . . . . . . . . 38.6 mm
Load at fitted length . . . . . . . . . . . . . 34 +/− 6% Kg
Load at top of lift . . . . . . . . . . . . . . . 92.5 +/- 4% Kg
Number of coils . . . . . . . . . . . . . . 5.33 Valve timing
Lubrication
System pressure at 4000 rev/min . 3.5 to 5.0 bar (oil
at 90-100°C)
Pressure relief valve opens . . . . . . . . . . . . 6.84 bar
Pressure relief valve spring - free length . 57.5 mm
Oil pump:
Outer rotor end float . . . . . . . . . . . 0.030-0.107 mm
Inner rotor end float . . . . . . . . . . . 0.030-0.107 mm
Outer rotor to body diam. clearance . . 0.130-0.230 mm
Rotor body to drive gear clearance
(pump not fitted) . . . . . . . . . . . . . . 0.30-0.50 mm
TORQUE SPECIFICATIONS
DESCRIPTION
TORQUE
Adaptor Plate to Block
Nuts (6) . . . . . . . . . . . . . . . . . . 27 N·m ( 20 ft. lbs.)
Automatic Belt Tensioner to Block
Bolts (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 N·m
Automatic Belt Tensioner to Mounting Bracket
Bolt (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 N·m
Generator belt
Tensioner . . . . . . . . . . . . . . . . . . . . . . . . . . 79 N·m
Generator bracket
Mounting bolts (6 mm) . . . . . . . . . . . . . . . . 10 N·m
Mounting bolts (8 mm) . . . . . . . . . . . . . . . 24.4 N·m
DESCRIPTION
TORQUE
Generator
Mounting bolt . . . . . . . . . . . . . . . . . . . . . . . 47 N·m
Camshaft thrust plate
Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 N·m
Connecting rod
Mounting bolt . . . . . . . . . . . . . . . . . . 29.5 N·m +60°
Crankshaft bearing
Carrier screw . . . . . . . . . . . . . . . . . . . . . . . 42 N·m
Crankshaft pulley
Locknut . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 N·m
Crossmember
Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 N·m
Diesel delivery
Union nut . . . . . . . . . . . . . . . . . . . . . . . . . 18.5 N·m
EGR valve
To intake manifold . . . . . . . . . . . . . . . . . . . 26 N·m
EGR tube
To EGR valve . . . . . . . . . . . . . . . . . . . . . . . 27 N·m
Engine mount—Front
Engine support bracket . . . . . . . . . . . . . . . . 61 N·m
Support Cushion . . . . . . . . . . . . . . . . . . . . . 47 N·m
Support cushion bracket bolts . . . . . . . . . . . 54 N·m
Support cushion bracket stud nuts . . . . . . . 41 N·m
Support Cushion through bolt . . . . . . . . . . . 65 N·m
Engine mount—Rear
Transmission support bracket . . . . . . . . . . . 46 N·m
Support Cushion nuts . . . . . . . . . . . . . . . . . 75 N·m
Support Cushion through bolt . . . . . . . . . . . 65 N·m
Exhaust down pipe
To turbocharger . . . . . . . . . . . . . . . . . . . . . . 22 N·m
Exhaust heat shield
Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 N·m
Exhaust manifold collar
Mounting nut . . . . . . . . . . . . . . . . 24.5 to 29.5 N·m
Exhaust manifold
Mounting nut . . . . . . . . . . . . . . . . . . . . . . 32.5 N·m
Fan drive
To fan hub . . . . . . . . . . . . . . . . . . . . . . . . . . 56 N·m
Flywheel
Lock bolt . . . . . . . . . . . . . . . . . . . . . . . 20 N·m +60°
Front timing cover
6 mm bolts . . . . . . . . . . . . . . . . . . . . . . . . . 10 N·m
8 mm bolts . . . . . . . . . . . . . . . . . . . . . . . . . 26 N·m
Fuel filter
Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 N·m
Glow plug
Torque . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.0 N·m
Idler pulley bracket
Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 N·m
Idler pulley
Bolt (left hand thread) . . . . . . . . . . . . . . . . 47 N·m
Injection pump fuel lines
Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 N·m
9 - 48
ENGINE
XJ
SPECIFICATIONS (Continued)
2000 JEEP CHEROKEE