Chemical Test Method: Removal & Installation Jeep Liberty II

INSTALLATION

Note. The cylinder head bolts are tightened using a torque plus angle procedure. The bolts must be examined BEFORE reuse. If the threads are necked down (2) the bolts should be replaced.

Necking can be checked by holding a straight edge against the threads. If all the threads do not contact the scale, the bolt should be replaced.

Scheme 68

1. Clean the cylinder head and cylinder block mating surfaces. * - INDICATES SEALANT ON THREADS
2. Position the new cylinder head gasket on the locating dowels. CAUTION: When installing cylinder head, use care not damage the tensioner arm or the guide arm.
3. Position the cylinder head onto the cylinder block. Make sure the cylinder head seats fully over the locating dowels.
4. Lubricate the cylinder head bolt threads with clean engine oil and install the eight M10 bolts. NOTE: The four M8 cylinder head mounting bolts (1) require sealant to be added to them before installing. Failure to do so may cause leaks.
5. Coat the four M8 cylinder head bolts with Mopar Lock and Seal Adhesive then install the bolts. NOTE: The cylinder head bolts are tightened using an angle torque procedure, however, the bolts are not a torque-to-yield design.
6. Tighten the bolts in sequence using the following steps and torque values: Step 1: Tighten bolts 1-8, 27 N.m (20 ft. lbs.). Step 2: Verify that bolts 1-8, all reached 27 N.m (20 ft. lbs.), by repeating step 1 without loosening the bolts. Step 3: Tighten bolts 9 thru 12 to 14 N.m (10 ft. lbs.). Step 4: Tighten bolts 1-8, 90 °. Step 5: Tighten bolts 1-8, 90 °, again. Step 6: Tighten bolts 9-12, 26 N.m (19 ft. lbs.).
7. Position the secondary chain (2) onto the camshaft drive gear, making sure one marked chain link is on either side of the V6 mark (1) on the gear then using the Camshaft Holder 8428, position the gear onto the camshaft. CAUTION: Remove excess oil from camshaft sprocket retaining bolt before reinstalling bolt. Failure to do so may cause over-torquing of bolt resulting in bolt failure.
8. Install the camshaft drive gear retaining bolt.
9. Install the right side secondary chain guide. Refer to «Engine/Valve Timing/SPROCKET(S), Timing Belt and Chain - Installation»(ref-350035-S18213572222009121400000) . 1 - RIGHT CYLINDER HEAD ACCESS PLUG 2 - LEFT CYLINDER HEAD ACCESS PLUG
10. Install the cylinder head access plug (1,2).
11. Reset and install the right side secondary chain tensioner. See «Engine/Valve Timing/CHAIN and SPROCKETS, Timing - Installation»(ref-350033-S36562514712009121400000) . 1 - SPECIAL TOOL 8429 2 - CAMSHAFT CHAIN 3 - CRANKSHAFT TIMING GEAR
12. Remove the Camshaft Holder 8429 (1).
13. Install the timing chain cover. See «Engine/Valve Timing/COVER(S), Engine Timing - Removal»(ref-350033-S09176476182009121400000) .
14. Install the crankshaft damper. See «Engine/Engine Block/DAMPER, Vibration - Installation»(ref-350033-S32125941492009121400000) . Tighten damper bolt 175 N.m (130 Ft. Lbs.).
15. Install accessory drive belt. Refer to «Cooling/Accessory Drive/BELT, Serpentine - Installation»(ref-350049-S32613456632009121400000) .
16. Install the fan shroud. Refer to «Cooling/Engine/FAN, Cooling - Installation»(ref-350049-S04831714512009121400000) .
17. Install the cylinder head cover. See «Engine/Cylinder Head/COVER(S), Cylinder Head - Installation»(ref-350033-S28765512662009121400000) .
18. Install the intake manifold. See «Engine/Manifolds/MANIFOLD, Intake - Installation»(ref-350033-S15220485882009121400000) .
19. Install oil fill housing onto cylinder head.
20. Refill the cooling system. Refer to «Cooling - Standard Procedure»(ref-350049-S21995734202009121400000) .
21. Raise the vehicle.
22. Install the exhaust pipe onto the right exhaust manifold.
23. Lower the vehicle.
24. Reconnect battery negative cable.
25. Start the engine and check for leaks.