3.7L Engine - Service Information: Removal & Installation Dodge Nitro I

INSTALLATION

1. Install element into housing.
2. Position housing cover into housing locating tabs.
3. Pry up spring clips and lock cover to housing.

If any air filter, air resonator, air intake tubes or air filter housing clamps had been loosened or removed, tighten them to 5 N.m (40 in. lbs.)

REMOVAL PISTON AND CONNECTING ROD

1. Disconnect negative cable from battery.
2. Remove the following components: Oil pan and gasket/windage tray. See «REMOVAL»(ref-306142-S29879319962008120900000) . Cylinder head covers. See «REMOVAL»(ref-306142-S12051049862008120900000) for left side or «REMOVAL»(ref-306142-S07155423102008120900000) for right side. Timing chain cover. See «REMOVAL»(ref-306142-S29598169092008120900000) . Cylinder head(s). See «REMOVAL»(ref-306142-S19326271212008120900000) for left side, or «REMOVAL»(ref-306142-S31239402922008120900000) for right side.
3. If necessary, remove top ridge of cylinder bores with a reliable ridge reamer before removing pistons from cylinder block. Be sure to keep tops of pistons covered during this operation. Pistons and connecting rods must be removed from top of cylinder block. When removing piston and connecting rod assemblies from the engine, rotate crankshaft so the each connecting rod is centered in cylinder bore. CAUTION: DO NOT use a number stamp or a punch to mark connecting rods or caps, as damage to connecting rods could occur NOTE: Connecting rods and bearing caps are not interchangeable and should be marked before removing to ensure correct reassembly.
4. Mark connecting rod and bearing cap positions using a permanent ink marker or scribe tool. CAUTION: Care must be taken not to damage the fractured rod and cap joint face surfaces, as engine damage may occur.
5. Remove connecting rod cap. Install the Connecting Rod Guides 8507 into the connecting rod being removed. Remove piston from cylinder bore. Repeat this procedure for each piston being removed. CAUTION: Care must be taken not to nick crankshaft journals, as engine damage may occur
6. Immediately after piston and connecting rod removal, install bearing cap on the mating connecting rod to prevent damage to the fractured cap and rod surfaces.

INSTALLATION FRONT ENGINE MOUNT

1. Position the insulator mount and install the insulator mount through bolt.
2. Lower the engine until the cylinder block-to-insulator mount bolts can be installed.
3. Remove the jack and block of wood.
4. Tighten the cylinder block-to-insulator mount bolts to 61 N.m (45 ft. lbs.).
5. Install and tighten the through bolt retaining nut to 61 N.m (45 ft. lbs.).
6. Install the fan blade, fan clutch and fan shroud.

REMOVAL OIL PAN - 4X2

1. Disconnect Battery.
2. Install Engine Support Fixture 8534.
3. Raise and support vehicle.
4. Remove front wheel and tire assemblies.
5. Remove skid plate (if equipped).
6. Drain engine oil.
7. Remove engine to transmission structural cover, (if equipped).
8. Remove transmission oil cooler line bracket.
9. Loosen both engine mount through bolts.
10. Lower the vehicle. NOTE: It is not necessary to remove the viscous fan , or fan shroud, for oil pan removal.
11. Raise the engine using Engine Support Fixture 8534, until the viscous fan almost touches the fan shroud.
12. Raise the vehicle.
13. Remove the oil pan bolts.
14. Separate the oil pan from the engine.
15. Remove the (2) nuts and (1) bolt holding the oil pump pick-up tube, and windage tray in place. NOTE: It will be necessary to move the oil pan from side to side to gain access to these fasteners.
16. Drop the oil pump pick-up tube into the oil pan, and remove the oil pan, pick-up tube, and the windage tray, as an assembly, from the front of the vehicle.

REMOVAL OIL PAN - 4X4

1. Disconnect and isolate negative battery cable.
2. Install engine support fixture.
3. Raise and support vehicle.
4. Remove front wheel assemblies.
5. Remove skid plate (if equipped). Refer to «REMOVAL»(ref-306169-S39954372322008120900000).
6. Drain engine oil.
7. Mark adjustment cam position of front lower control arm bolts.
8. Remove front lower control arm bolts. Refer to «REMOVAL»(ref-306138-S28964181732008120900000).
9. Disconnect LH tie rod. Refer to «REMOVAL»(ref-306136-S04131739202008120900000).
10. Disconnect LH lower ball joint. Refer to «REMOVAL»(ref-306138-S01980866032008120900000).
11. Disconnect LH strut clevis. Refer to «REMOVAL»(ref-306138-S03125600942008120900000).
12. Remove LH front axle. Refer to «REMOVAL»(ref-306145-S19278840712008120900000).
13. Remove front axle brace bolts.
14. Remove front prop shaft. Refer to «REMOVAL»(ref-306145-S17464238962008120900000).
15. Drain front axle.
16. Using a transmission jack, support front axle.
17. Remove axle bracket bolts.
18. With RH axle still in place, remove front differential.
19. Remove transmission oil cooler line bracket.
20. Remove engine to transmission stiffening bracket.
21. Position Engine Support 8534 on the fender lip and align the slots in the brackets with the fender mounting holes.
22. Secure brackets to the fender using four M6 X 1.0 X 25 MM flanged cap screws.
23. Tighten the thumbscrews to secure the sleeves to the support tube.
24. Secure the support tube in an upright position.
25. Assemble the flat washer, thrust bearing, hook and T handle.
26. Using the M10 X 1.75 mm flanged nut supplied with the support fixture, secure the chain to the front engine lifting stud.
27. Loosen engine mounts.
28. Remove oil pan bolts.
29. Separate oil pan (1) from engine.
30. Move oil pan to one side, remove oils sump bolt and windage tray bolts, NOTE: Do not pry on oil pan or oil pan gasket. Gasket is integral to engine windage tray and does not come out with oil pan. (Схема №144)
31. Move the oil pan and windage tray (2) toward front of vehicle and remove from vehicle.

INSTALLATION OIL PAN - 4X4

1. Inspect oil pan gasket for defects, and replace if necessary.
2. Clean the oil pan and block gasket mating surfaces.
3. Drop the oil pump pick-up tube into the oil pan, and install the oil pan, pick-up tube, and the windage tray, as an assembly, from the front of the vehicle.
4. Install the windage tray, then the oil pump pick-up tube, and the (2) nuts and (1) bolt holding the oil pump pick-up tube, in place. NOTE: It will be necessary to move the oil pan from side to side to gain access to these fasteners.
5. Torque the pick-up tube fasteners.
6. Install the oil pan.
7. Install and torque the oil pan bolts.
8. Install the engine to transmission structural cover, (if equipped).
9. Lower the vehicle.
10. Lower the engine using Engine Support Fixture 8534.
11. Remove the Engine Support Fixture 8534.
12. Raise the vehicle.
13. Tighten both engine mount through bolts.
14. Install the transmission oil cooler line bracket.
15. Install the front axle assembly to the vehicle.
16. Install the skid plate (if equipped).
17. Install the front wheel and tire assemblies.
18. Lower the vehicle.
19. Refill engine oil.
20. Reconnect battery.
21. Start engine, and check for leaks.