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Oil Pan Service

1965-1970 6-Cylinder Engines

  1. Drain the crankcase, and remove the dip-stick and flywheel inspection plate.
  2. Disconnect the stabilizer bar and pull it downward out of the way.
  3. Remove one bolt, loosen the other and swing No. 2 crossmember out of the way.
  4. Remove the oil pan. Reverse the procedure for installation.

260, 289, 302 (1969-1970) Boss 302, and 351 W Engines

  1. Remove the oil level dipstick. Drain the oil pan.
  2. Disconnect the stabilizer bar from the lower control arms and pull the ends down.
  3. Remove the oil pan attaching bolts and position the pan on the front cross-member.
  4. Remove the one oil inlet tube bolt and loosen the other to position the tube out of the way to remove the pan.
  5. Turn the crankshaft as required for clearance to remove the pan.
  6. Install in the reverse from above.

351 C Engine

  1. Remove the dipstick, raise the vehicle, and drain the crankcase.
  2. Disconnect the starter cable and remove the starter.
  3. Remove the stabilizer bar.
  4. Remove the two bolts retaining No. 2 crossmember and remove the crossmember.
  5. Remove the pan bolts, turn the crankshaft for maximum clearance, and remove the pan. Reverse the procedure for installation.

390, 427, 428, and Boss 429 Engines

  1. Raise the car and place safety stands in position. Drain the oil from the crankcase.
  2. Disconnect the stabilizer bar links and pull the ends down. On models equipped with a fan shroud, remove the shroud from the radiator and position it rearward over the fan.
  3. Remove the nuts and lockwashers from the engine front support insulator-to-intermediate support bracket.
  4. Install a block of wood on the jack and position the jack under the leading edge of the pan.
  5. Raise the engine approximately 11/4 inch and insert a 1 inch block between the insulators and the crossmember. Remove the floor jack.
  6. Remove the oil pan attaching screws and lower the pan-to-frame crossmember.
  7. Turn the crankshaft to obtain clearance between the crankshaft counterweight and the rear of the pan.
  8. Remove the oil pump attaching bolts.
  9. Position the tube and screen out of the way and remove the pan.
  10. Install in reverse of above.

From 1971 on, the No. 2 crossmember is welded to the frame. Previously, this crossmember was bolted into place. This change has resulted in revised oil pan removal procedures for all engines from 1971 to the present.

1971-73 250 Engine

  1. Drain the cooling system.
  2. Disconnect the radiator upper and lower hoses. If the car is equipped with an automatic transmission, disconnect the fluid cooler inlet and outlet lines from the radiator.
  3. On a crossflow radiator, remove the radiator upper support retaining bolts and the upper support(s). Remove the radiator. If equipped with a down-flow radiator, remove the radiator attaching bolts from the radiator side supports and remove the radiator. On a vehicle equipped with an air conditioner, remove the bolts retaining the radiator shroud to the radiator. Remove the radiator upper or side retaining bolts. Remove the upper support retaining bolts, if so equipped. Remove the radiator. Lift the radiator shroud from the engine compartment.
  4. Raise the vehicle and drain the crankcase.
  5. Remove the sway bar retaining nuts and bolts. Allow the sway bar to hang in place.
  6. Remove both front engine supports through the bolts and nuts.
  7. Raise the engine. Place blocks (2 inches long) between the engine supports and the chassis brackets.
  8. Remove the starter motor retaining bolts and place the starter motor out of the way on the steering linkage.
  9. Remove the oil pan retaining bolts, lower the oil pan, and remove the oil pump pick-up tube and screen assembly.
  10. Position the oil cooler lines up and out of the way.
  11. Push the oil pan forward over the front crossmember and into the radiator area to allow the oil pan to clear the crossmember and be removed from the bottom.

To install:

  1. Clean the gasket surfaces of the block and oil pan. Coat the block and oil pan gasket surfaces with oil-resistant sealer. Position the oil pan gasket and seals to the block.
  2. Reversing the removal procedure, position the oil pan to the engine. Install the oil pump pick-up tube and screen assembly.
  3. Install the oil pan retaining bolts and tighten them to 7-9 ft. lbs.
  4. Install the starter.
  5. Raise the engine, remove the blocks, and lower the engine to the chassis. Install the engine support bolts and nuts and tighten them to 20-30 ft. lbs.
  6. Reposition the sway bar, install the nuts and bolts, and tighten them to 6-12 ft. lbs.
  7. Lower the vehicle and install the radiator.
  8. Fill the crankcase and the cooling system.
  9. Start the engine and check for leaks.

1971-73 302 and 351 Engines

  1. Remove the oil level dipstick. Remove the bolts attaching the fan shroud to the radiator. Position the shroud over the fan.
  2. Raise the vehicle.
  3. Drain the crankcase.
  4. Remove the stabilizer bar from the chassis.
  5. It may be necessary to remove the engine front support thru-bolts.
  6. Raise the engine and place wood blocks between the engine front supports and the chassis brackets.
  7. If equipped with an automatic transmission, disconnect the oil cooler lines at the radiator.
  8. Remove the oil pan retaining bolts and lower the oil pan onto the crossmember.
  9. It may be necessary to remove the oil pump pick-up tube and screen from the oil pump. Rotate the crankshaft for clearance and remove the oil pan.

To install:

  1. Clean the gasket surfaces of the block and oil pan. The oil pan has a two-piece gasket .
  2. Clean the oil pump pick-up tube and screen.
  3. Coat the block surface and the oil pan gasket with sealer. Position the oil pan gaskets on the cylinder block.
  4. Position the oil pan front seal on the cylinder front cover. Be sure the tabs on the seal are over the oil pan gasket.
  5. Position the oil pan rear seal on the rear main bearing cap. Be sure the tabs on the seal are over the oil pan gasket.
  6. Position the oil pan on the crossmember. Install a new gasket on the oil pump and install the oil pump pick-up tube.
  7. Position the oil pan against the block and install a bolt, finger-tight, on each side of the block. Install the remaining bolts. Tighten the bolts from the center outward in each direction to 9-11 ft. lbs.
  8. If equipped with an automatic transmission, connect the oil cooler lines at the radiator.
  9. Raise the engine and remove the wood blocks from between the engine supports and the chassis brackets. Lower the engine and install the engine support thru-bolts. Tighten the bolts to 20-30 ft. lbs.
  10. Install the stabilizer bar to the chassis.
  11. Lower the vehicle.
  12. Install the fan shroud.
  13. Install the oil level dipstick. Fill the crankcase with the proper grade and quantity of engine oil. Start the engine and check for oil leaks.

429 SCJ

  1. Remove the fan shroud attaching bolts and position the fan shroud over the fan.
  2. Remove the air cleaner assembly and the right-hand rocker cover emission hose.
  3. Raise the vehicle and drain the crankcase.
  4. Remove both engine front support thru-bolts.
  5. Remove the sway bar attaching bolts from the chassis and lower the bar for clearance.
  6. Raise the engine and place 11/2 in. spacers between the engine support insulators and chassis brackets.
  7. Remove the oil pan attaching bolts and the oil pan.
  8. Remove the oil pump pick-up tube and screen assembly.

To install:

  1. Clean the oil pan and cylinder block gasket surfaces. Clean and install the pick-up tube and screen assembly.
  2. Position the oil pan gaskets and seals to the cylinder block.
  3. Replace the oil pan and attaching bolts. Torque the bolts to 7-9 ft. lbs.
  4. Raise the engine and remove the spacers.
  5. Install the engine support thru-bolts. Torque to 20-30 ft. lbs.
  6. Install the sway bar. Torque bolts to 6-12 ft. lbs.
  7. Lower the vehicle.
  8. Install the fan shroud.
  9. Install the air cleaner and right-hand rocker cover emission hose.
  10. Fill the crankcase. Start the engine and check for leaks.