Oil Pump: Service and Repair
Oil Pan, Oil Pump, Oil Pump Screen and Pickup Tube1. Drain the engine oil.
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2. Remove the components in the order indicated. To remove individual components, carry out only the listed steps.
3. NOTE: The illustration and related steps are only intended for 4x4 vehicles only.
Illustration 1 of 2. Remove the components in the order indicated in the illustration.
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4. Illustration 2 of 2. Remove the components in the order indicated in the illustration.
5. To install, reverse the removal procedure.
6. Fill the engine with clean engine oil.
Item 6: Axle Housing Removal Note
1. CAUTION: Do not let the axle housing hang freely. Failure to follow this instruction can result in damage to the vehicle.
Using a transmission jack, lower the axle housing to gain clearance for the removal of the oil pan.
Item 17: Lower Block Cradle Removal Note
1. CAUTION: Failure to back off the set screws can result in damage to the lower block cradle.
Back the set screws off until they are below the lower block cradle boss.
Item 18: Lower Block Cradle Gasket Removal Note
1. NOTE: Gasket material as well as silicone sealant may be present in the cavities in the main bearing cap. This material must be removed completely prior to assembly.
Clean the sealant from the cavities on the rear main bearing cap.
Item 18: Lower Block Cradle Gasket Installation Note
1. NOTE: If the block cradle gasket is not secured within four minutes of the sealant application, the sealant must be removed and the sealing area cleaned with metal surface cleaner. Allow the silicone to dry until there is no sign of wetness, or four minutes, whichever is longer. Failure to follow this procedure can cause future oil leakage.
Apply silicone in the six places shown.
Item Number 12, 13,14,15,16 and 17: Lower Block Cradle and Bolts Installation Note
1. Position the lower block cradle and gasket assembly.
2. Install and hand-tighten the outer bolts and nuts.
3. Install and hand-tighten the rear lower block cradle bolts.
4. Install the two rear lower block cradle-to-bell housing bolts.
5. NOTE: The lower block cradle to the cylinder block alignment must be within a maximum mismatch of 0.25 mm (0.01 inch) lower block cradle underflush or 0.05 mm (0.00196 inch) lower block cradle protrusion.
Using a straightedge, align the transmission face of the lower block cradle with the rear face of the cylinder block.
6. Tighten the outer bolts.
7. Tighten the rear lower block cradle bolts.
8. Tighten the eight inserts.
9. Install the two silver covered bolts and new washer seals. Hand-tighten them at this time.
10. Install and hand-tighten the six remaining bolts.
11. Tighten the lower block cradle bolts in two stages:
^ Stage 1: Tighten to 15 Nm (11 ft. lbs.).
^ Stage 2: Tighten to 34 Nm (25 ft. lbs.).