Section 03-01A: Engine, 4.9L SFI
1996 F-150, F-250, F-350 (4x2), F-150, F-250 (4x4) Workshop Manual
IN-VEHICLE SERVICE

Connecting Rod Bearings

 

Removal

  1. Drain the crankcase. Remove the oil pan (6675) and oil pump (6600).

  1. NOTE: If connecting rod bearings (6211) are to be reused, identify them according to location so they can be installed in their original positions.

    Rotate the crankshaft (6303) until the connecting rod (6200) to which new bearings are to be fitted is at the bottom of the stroke. Remove the connecting rod cap. Remove the bearing inserts from the connecting rod and cap.

  1. Make sure the bearing inserts and the bearing bore in the connecting rod and cap are clean. Foreign material under the inserts will distort the bearing and cause premature wear.

  1. Clean the crankshaft journal. When replacing standard size bearings with new bearings, first try to obtain the proper clearance with standard size bearings. Refer to Section 03-00 for cleaning and inspection procedures.

Installation

  1. Install the bearing inserts in the connecting rod and cap with the tangs fitted in the slots.

  1. Pull the connecting rod down firmly on the crankshaft journal.

    Check bearing clearance. Refer to Section 03-00.

  1. After the bearing clearance has been checked and found to be OK or concern is corrected, clean and apply a light coat of engine oil to the journal and bearings. Install the connecting rod cap and tighten the nuts to 55-61 Nm (40-45 lb-ft).

  1. Repeat the procedure for the remaining connecting rods that require new connecting rod bearings.

  1. Install the oil pan and oil pump.

  1. Fill the crankcase with oil specified in Section 00-03. Fill the cooling system. Refer to Section 03-03. Start the engine (6007) and check for oil pressure. Operate the engine at fast idle and check for oil and coolant leaks.