Specifications

DESCRIPTION SPECIFICATIONS
Exhaust valve:
Opens ....................... 66°B.B.D.C.
Closes ........................ 36°A.T.D.C.
Face angle:
Intake ...................... 55°308 - 55° 408
Exhaust ..................... 45°258 - 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) .................. 27N·m(20ft.lbs.)
Automatic Belt Tensioner to Block
Bolts (2) ........................... 121N·m
Automatic Belt Tensioner to Mounting Bracket
Bolt (1) ............................ 75N·m
Generator belt
Tensioner .......................... 79N·m
Generator bracket
Mounting bolts (6 mm) ................ 10N·m
Mounting bolts (8 mm) ............... 24.4 N·m
DESCRIPTION TORQUE
Generator
Mounting bolt ....................... 47N·m
Camshaft thrust plate
Bolts .............................. 24N·m
Connecting rod
Mounting bolt .................. 29.5 N·m +60°
Crankshaft bearing
Carrier screw ....................... 42N·m
Crankshaft pulley
Locknut ........................... 160N·m
Crossmember
Bolts .............................. 42N·m
Diesel delivery
Union nut ......................... 18.5 N·m
EGR valve
To intake manifold ................... 26N·m
EGR tube
To EGR valve ....................... 27N·m
Engine mount—Front
Engine support bracket ................ 61N·m
Support Cushion ..................... 47N·m
Support cushion bracket bolts ........... 54N·m
Support cushion bracket stud nuts ....... 41N·m
Support Cushion through bolt ........... 65N·m
Engine mount—Rear
Transmission support bracket ........... 46N·m
Support Cushion nuts ................. 75N·m
Support Cushion through bolt ........... 65N·m
Exhaust down pipe
To turbocharger ...................... 22N·m
Exhaust heat shield
Screws ............................. 11N·m
Exhaust manifold collar
Mounting nut ................ 24.5 to 29.5 N·m
Exhaust manifold
Mounting nut ...................... 32.5 N·m
Fan drive
Tofanhub.......................... 56N·m
Flywheel
Lock bolt ....................... 20N·m+60°
Front timing cover
6 mm bolts ......................... 10N·m
8 mm bolts ......................... 26N·m
Fuel filter
Nuts .............................. 28N·m
Glow plug
Torque ........................... 13.0 N·m
Idler pulley bracket
Bolts .............................. 40N·m
Idler pulley
Bolt (left hand thread) ................ 47N·m
Injection pump fuel lines
Nut............................... 23N·m
9 - 48 ENGINE XJ
SPECIFICATIONS (Continued)