Discovery I (LJ) V8-4.0L (1996)
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8.
Disconnect breather hose from plenum.
9.
Press release clip and disconnect multiplug from throttle position sensor (TP sensor).
10.
Disconnect multiplug from idle air control (IAC) valve.
11.
Remove six bolts securing plenum chamber.
12.
Remove plenum chamber from ram pipe housing.
13.
Clamp waterjacket coolant hoses.
14.
Place cloth in position to absorb coolant spillage.
15.
Loosen clamps securing coolant hoses to plenum.
16.
Remove coolant hoses from water jacket and remove plenum chamber.
Valve Cover Removal and Inspection / Installation
1.
Remove dipstick.
2.
Remove spark plug wires from spark plugs and retaining clips.
3.
Disconnect coil wire.
4.
Remove alternator heat shield securing nut from valve cover.
5.
Remove air flow meter harness clip.
6.
Remove bolt securing dipstick tube clip.
7.
Remove four valve cover bolts and remove valve cover.
8.
Discard gasket and four bolts.
9.
Clean all mating surfaces.
10.
Check surfaces for defects as described for right side.
Installation
1.
Follow instructions for right side to install valve cover gasket in left side valve cover.
2.
Install valve cover on cylinder head with four new bolts.
3.
Tighten in the same sequence and to the same torque used for right side.
4.
Position dipstick tube clip. Install and tighten bolts.
5.
Install and tighten air flow meter harness clip.
6.
Install alternator heat shield to valve cover.
7.
Connect coil wire.
8.
Connect spark plug wires to spark plugs and retaining clips.
9.
Install dipstick.
Plenum Chamber Installation (94-95 MY)
1.
Install Plenum housing as follows:
^
Clean joint faces of plenum and ram housing.
^
Apply Loctite(R) # 577 sealant.
