Page 1897 of 5267
5. Remove oil pump.
6. Retract tensioner shoe (1) until hole in shoe lines up with hole in bracket..
Page 1898 of 5267
7. Slide a suitable pin (1) into the holes.
8. Remove camshaft sprocket attaching bolt and
remove timing chain with crankshaft and camshaft
sprockets (2).
9. If tensioner assembly is to be replaced, remove the
tensioner to block bolts and remove tensioner
assembly.
Page 1899 of 5267

INSTALLATION
1. If tensioner (1) assembly is being replaced, install tensioner and mounting bolts. Torque bolts to 28 Nꞏm (250 in.
lbs.).
2. Retract tensioner (2) if required.
CAUTION: The timing chainmust be installed with
the single plated link aligned with the dot and or
paint marking on the camshaft sprocket. The
crankshaft sprocket is aligned with the dot and or
paint marking on the sprocket between two plated
timing chain links.
CAUTION: The camshaft pin and the slot in the
cam sprocket must be clocked at 12:00. The
crankshaft keyway must be clocked at 2:00. The
crankshaft sprocket must be installed so that the
dots and or paint marking is at 6:00.
3. Place both camshaft sprocket and crankshaft
sprocket on the bench with timing marks on exact
imaginary center line through both camshaft and
crankshaft bores.
4. Place timing chain around both sprockets.
5. Lift sprockets and chain (keep sprockets tight
against the chain in position as shown).
6. Slide both sprockets (2,3) evenly over their respec-
tive shafts and check alignment of timing marks.
7. Install the camshaft bolt. Tighten the bolt to 122 Nꞏm (90 ft. lbs.) torque.
Page 1900 of 5267
8.Remove tensioner pin. (1)Again, verify alignment
of timing marks.
9. Install the oil pump (Refer to 9 - ENGINE/LUBRICATION/OIL PUMP - INSTALLAT I O N ) .
10. Install the oil pan and pick up (Refer to 9 - ENGINE/LUBRICATION/OIL PAN- INSTALLATION).
Page 1901 of 5267
11. Install the timing chain cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) -
INSTALLATION).
12. Refill engine oil.
13. Fill cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).
14. Connect battery negative cable.
15. Start engine and check for oil and coolant leaks.
Page 1902 of 5267
TENSIONER - TIMING CHAIN
DESCRIPTION
The timing chain tensioner is a stamped steel constant tension mechanicaldesign. It is mounted to the front of the
engine, behind the timing chain drive.
OPERATION
The timing chain tension is maintained by routing the timing chain throughthe tensioner assembly. A nylon covered
spring steel arm presses on the timing chain maintaining the correct chaintension.
Page 1903 of 5267

page page
ENGINE - 5.9L DIESEL - SERVICE
INFORMATION
DESCRIPTION
DESCRIPTION - 5.9L DIESEL .............. 2596
DESCRIPTION - CRANKCASE BREATHER . . 2597
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - MECHANICAL............... 2597
DIAGNOSIS AND TESTING - SMOKE
DIAGNOSIS CHARTS..................... 2599
DIAGNOSIS AND TESTING - CYLINDER
COMPRESSION/LEAKAGE TESTS......... 2602
STANDARD PROCEDURE
STANDARD PROCEDURE - FORM-IN-
PLACE GASKETS AND SEALERS.......... 2603
STANDARD PROCEDURE - REPAIR
DAMAGED OR WORN THREADS.......... 2604
STANDARD PROCEDURE—HYDROSTATIC
LOCK.................................... 2604
REMOVAL - ENGINE ........................ 2605
INSTALLATION - ENGINE ................... 2610
SPECIFICATIONS
SPECIFICATIONS - 5.9L DIESEL ........... 2615
TORQUE ................................. 2617
SPECIAL TOOLS
5.9L DIESEL ENGINE ..................... 2619
ENGINE DATA PLATE
DESCRIPTION ............................. 2621
AIR CLEANER ELEMENT
REMOVAL ................................. 2622
INSTALLATION ............................. 2623
CYLINDER HEAD
DESCRIPTION ............................. 2624
REMOVAL ................................. 2624
CLEANING
CLEANING ............................... 2626
CLEANING—CROSSHEADS ............... 2626
CLEANING—PUSHRODS .................. 2626
INSPECTION
INSPECTION............................. 2627
INSPECTION - CROSSHEADS . . ........... 2627
INSPECTION—PUSHRODS................ 2628
INSTALLATION ............................. 2628
COVER - CYLINDER HEAD
REMOVAL
REMOVAL - ROCKER HOUSING ........... 2632
REMOVAL - CYL HEAD COVER ............ 2632
REMOVAL - CYL HEAD COVER GASKET . . . 2634
CLEANING
CLEANING CYLINDER HEAD COVER ...... 2634
INSPECTION - CYLINDER HEAD COVER ..... 2634INSTALLATION
INSTALLATION - ROCKER HOUSING ....... 2634
INSTALLATION - CYL HEAD COVER ....... 2635
INSTALLATION - CYL HEAD COVER
GASKET................................. 2636
VALVES & SEATS - INTAKE/EXHAUST
DESCRIPTION ............................. 2638
STANDARD PROCEDURE
STANDARD PROCEDURE - VALVES,
GUIDES AND SPRINGS................... 2638
STANDARD PROCEDURE - VALVE LASH
ADJUSTMENT AND VERIFICATION......... 2643
REMOVAL ................................. 2644
INSTALLATION ............................. 2646
ROCKER ARM
DESCRIPTION ............................. 2647
REMOVAL ................................. 2647
CLEANING ................................. 2648
INSPECTION............................... 2648
INSTALLATION ............................. 2649
ENGINE BLOCK
STANDARD PROCEDURE
STANDARD PROCEDURE - CYLINDER
BLOCK REFACING........................ 2651
STANDARD PROCEDURE - CYLINDER
BORE - DE-GLAZE........................ 2651
STANDARD PROCEDURE—CYLINDER
BORE REPAIR............................ 2652
STANDARD PROCEDURE - CAM BORE
REPAIR.................................. 2655
INSPECTION............................... 2655
CAMSHAFT & BEARINGS (IN BLOCK)
REMOVAL
CAMSHAFT BEARINGS................... 2657
CAMSHAFT .............................. 2657
INSPECTION
............................... 2659
INSTALLATION
CAMSHAFT BEARINGS................... 2661
CAMSHAFT .............................. 2661
BEARINGS - CONNECTING ROD
STANDARD PROCEDURE - CONNECTING
ROD BEARING AND CRANKSHAFT
JOURNAL CLEARANCE................... 2663
CRANKSHAFT & GEAR
DESCRIPTION ............................. 2664
REMOVAL - GEAR .......................... 2664
INSTALLATION - GEAR ..................... 2664
BEARINGS - CRANKSHAFT MAIN
STANDARD PROCEDURE - MAIN BEARING
CLEARANCE ............................. 2665
Page 1904 of 5267

SEAL - CRANKSHAFT OIL - FRONT
REMOVAL ................................. 2667
INSTALLATION ............................. 2668
SEAL - CRANKSHAFT OIL - REAR
REMOVAL ................................. 2670
INSTALLATION ............................. 2670
RETAINER - CRANK REAR OIL SEAL
REMOVAL ................................. 2671
INSTALLATION ............................. 2671
TAPPETS - VALVE
REMOVAL ................................. 2673
CLEANING ................................. 2674
INSPECTION ............................... 2674
INSTALLATION ............................. 2674
PISTON & CONNECTING ROD
DESCRIPTION ............................. 2677
STANDARD PROCEDURE - HEAD GASKET
SELECTION .............................. 2677
REMOVAL ................................. 2678
CLEANING—PISTON AND CONNECTING ROD . 2678
INSPECTION
INSPECTION - PISTONS .................. 2678
INSPECTION - CONNECTING ROD........ 2680
INSTALLATION ............................. 2680
RINGS - PISTON
STANDARD PROCEDURE - PISTON RING
FITTING .................................. 2682
DAMPER - CRANKSHAFT
REMOVAL ................................. 2684
INSPECTION ............................... 2684
INSTALLATION ............................. 2684
MOUNT - FRONT
REMOVAL ................................. 2685
INSTALLATION ............................. 2686
MOUNT - REAR
REMOVAL ................................. 2687
INSTALLATION ............................. 2687
LUBRICATION
DESCRIPTION ............................. 2688
OPERATION ............................... 2688
DIAGNOSIS AND TESTING—ENGINE OIL
PRESSURE .............................. 2692
OIL
STANDARD PROCEDURE
STANDARD PROCEDURE - ENGINE OIL
LEVEL................................... 2693STANDARD PROCEDURE - ENGINE OIL
SERVICE................................. 2693
COOLER - ENGINE OIL & LINES
CLEANING
CLEANING AND INSPECTION............. 2694
FILTER - ENGINE OIL
REMOVAL ................................. 2695
INSTALLATION ............................. 2695
PA N - E N G I N E O I L
REMOVAL ................................. 2696
CLEANING ................................. 2696
INSPECTION............................... 2696
INSTALLATION ............................. 2696
VALVE-OILPRESSURERELIEF
REMOVAL ................................. 2697
CLEANING ................................. 2697
INSPECTION............................... 2697
INSTALLATION ............................. 2697
SWITCH - OIL PRESSURE
REMOVAL ................................. 2698
INSTALLATION ............................. 2698
PUMP - ENGINE OIL
REMOVAL ................................. 2699
CLEANING ................................. 2699
INSPECTION............................... 2699
INSTALLATION ............................. 2700
MANIFOLD - INTAKE
REMOVAL ................................. 2702
CLEANING ................................. 2703
INSPECTION............................... 2703
INSTALLATION ............................. 2703
MANIFOLD - EXHAUST
REMOVAL ................................. 2704
CLEANING ................................. 2704
INSPECTION............................... 2704
INSTALLATION ............................. 2704
VALVE TIMING
STANDARD PROCEDURE - TIMING
VERIFICATION ........................... 2706
CASE - FRONT
REMOVAL ................................. 2707
INSTALLATION ............................. 2708
COVER - TIMING
REMOVAL ................................. 2710
INSTALLATION ............................. 2710