Engine Oil Pan Removal Oldsmobile Cutlass V

1.8L (112") & 2.0L (122")

Disconnect negative battery cable at battery. Raise vehicle on hoist and drain crankcase. Remove air conditioning bracket. Remove exhaust pipe and shield at manifold. Remove flywheel inspection cover. Remove oil pan bolts and remove oil pan.

2.5L (151")

1. Raise vehicle on hoist, disconnect battery and drain crankcase. Remove cradle-to-front motor mount nuts. Disconnect exhaust pipe at manifold and at rear transaxle mount. Disconnect starter and remove flywheel housing inspection cover.
2. Remove upper alternator bracket. Install engine lifting tool (J-22825-40) and raise engine. Remove lower alternator bracket and engine support bracket. Remove oil pan bolts, wiring harness guide, and remove oil pan.

Note. Upon reinstallation of oil pan, timing gear cover bolts should be installed last. Cover bolts are installed at an angle and holes align after other pan bolts are snugged.

2.8L (173")

Disconnect negative battery cable, raise vehicle on hoist and drain crankcase. Remove flywheel inspection cover and starter. Support engine and remove engine mount-to-engine bolts. Remove oil pan bolts and raise engine. Remove oil pan.

3.0L (181")

Disconnect negative battery cable. Raise vehicle on hoist and drain crankcase. Remove flywheel inspection cover. Remove oil pan bolts and remove oil pan.

3.8L (231") & 4.1L (252") (Exc. Toronado)

Raise vehicle and support with safety stands. Drain crankcase and remove converter inspection cover. Disconnect exhaust crossover pipe at manifold. Raise engine, remove oil pan bolts and remove oil pan.

3.8L (231") & 4.1L (252") Toronado

1. Disconnect negative battery cable and remove 1 final drive-to-transmission bolt. Install an engine support fixture and raise vehicle on hoist. Support vehicle with jack stands and lower hoist.
2. Disconnect idler arm bracket at frame and turn steering wheel to left lock position. Disconnect drive axles from output shafts. Remove battery cable bracket from output shaft support and output shaft support from engine block. Remove final drive-to-transmission bolts.
3. Remove final drive cover and final drive unit using a transmission jack. Remove splash shield. Starter motor and flywheel inspection cover. Drain crankcase, remove oil pan bolts and remove oil pan.

4.3L (262") Diesel (Exc. Cutlass Ciera)

1. Remove oil pump drive and vacuum pump. Disconnect battery cables at battery and remove dipstick. Remove upper radiator support and fan shroud attaching screws. Raise vehicle on hoist and drain crankcase.
2. Remove flywheel cover and disconnect exhaust crossover pipes. Remove oil cooler lines at filter base. Remove starter motor. Remove engine mounts from engine and jack up front of engine using engine support tool (BT-6501). Remove oil pan bolts and oil pan.

Scheme 40

1. Install engine support fixture to right front side of cylinder head as shown in Fig. (Scheme 40) in Buick Oil Pan Removal. Raise vehicle on hoist but keep rear slightly lower than front. Install support stands at forward lift points. (Scheme 40): Engine Support Fixture
2. Drain crankcase. Remove left side steering gear-to-cradle bolt. Remove front stabilizer bar. Drill through spot weld, located between rear holes at left hand front stabilizer bar mounting point, using a 1/2" drill bit. Remove nuts attaching engine and transaxle to cradle mounts.
3. Disconnect lower left ball joint from knuckle. Place a jack under transaxle oil pan, with block of wood between pan and jack, and raise transaxle until mount studs clear cradle. Remove bolts attaching front crossmember to right side of cradle. Remove bolts from left side body mounts.
4. Remove left and front crossmember assembly. It will be necessary to lower the rear crossmember below the left for removal clearance. Remove flywheel cover and starter assembly. Remove engine mount bracket. Remove oil pan bolts and oil pan.

5.0L (307") (Exc. Toronado)

1. Remove distributor cap and align rotor to number 1 firing position. Disconnect negative battery cable at battery and remove engine oil dipstick. On Cutlass models, disconnect upper fan shroud. On 88 and 98 models, remove upper radiator support and fan shroud screws.
2. On all models, raise vehicle on hoist and drain crankcase. Remove converter housing inspection cover. Disconnect exhaust and crossover pipes at manifolds. Remove starter motor. Install engine lifting tool (BT-6501).
3. Remove motor mount through bolts and raise front of engine as far as possible. On Cutlass models, remove motor mounts from engine block. On all models, remove oil pan bolts and remove oil pan.

5.0L (307") Toronado

1. Disconnect negative battery cable. Remove top and 2 left final drive-to-transmission bolts. Raise vehicle on hoist, support with safety stands and lower hoist. Disconnect idler and pitman arm from relay rod. Disconnect drive axles at output shafts. Remove battery cable bracket from output shaft support and output shaft support from engine block.
2. Remove 3 remaining final drive-to-transmission bolts and remove splash baffle. Remove final drive upper support bracket bolts. Remove final drive using a transmission jack. Remove starter motor and drain crankcase. Remove oil pan bolts and remove oil pan.

5.7L (350") Diesel (Exc. Toronado)

1. Remove oil pump drive and vacuum pump. Disconnect battery cables and remove dipstick. Remove upper radiator support and fan shroud attaching screws. Raise vehicle on hoist and drain crankcase. Remove flywheel inspection cover.
2. Disconnect exhaust and crossover pipes and remove oil cooler lines at filter base. Remove starter motor and engine mounts from engine block. Jack up front of engine, remove oil pan bolts and remove oil pan.

5.7L (350") Diesel, Toronado

1. Disconnect negative battery cable. Remove top and 2 left final drive-to-transmission bolts. Raise vehicle on hoist, support with jack stands and lower hoist. Disconnect idler and pitman arms from relay rod.
2. Disconnect drive axles from output shafts. Remove battery cable bracket from output shaft support and output shaft support from engine block. Remove 3 final drive-to-transmission bolts and remove splash shield. Remove final drive upper support bracket bolts.
3. Remove final drive using a transmission jack. Remove starter motor and drain crankcase. Remove 2 nuts from front motor mount and loosen front motor mount bolts at side of blcok. Raise engine 1-1 1/2", remove oil pan bolts and remove oil pan.

4-CYLINDER

TORQUE SPECIFICATIONS (4-CYLINDER)

V6

TORQUE SPECIFICATIONS (V6)

V8

TORQUE SPECIFICATIONS (V8)