818391 Mercury NEEDLE BEARING

Table 1
Required Tools
Tool Part Number Part Description Qty
B 387-1351 Crankshaft Bearing Driver -
C 129-1967 Multipurpose White Grease 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Install the main bearings dry when the clearance checks are made.Note: Install the crankshaft main bearings upper and lower halves, with the bearing tabs fitting into the notch of the crankshaft main bearing cases.
Illustration 1 g02715940
Illustration 2 g02719957
Use Tooling (B) and install crankshaft main bearing (12) into the front of the cylinder block. Install crankshaft main bearing (12) with the seam on the right or left side of the cylinder block. Note: When the bearing clearance is checked, and the engine is in an upright position, or on the side. The crankshaft must be supported against the upper halves of the main bearings. Procedure is done in order to get a correct measurement with Tooling (B). If the crankshaft is not supported, the weight of the crankshaft will cause an incorrect reading. If the engine is not in an upright position or on the side, is not necessary to support the crankshaft.Note: Refer to Guideline For Reusable Parts, SEBV0544, "Engine Bearings and Crankshafts" for complete details concerning the measurement of bearing clearances.
Illustration 3 g02715307
Apply Tooling (C) to crankshaft main bearings (7). Install crankshaft main bearings (7) in the upper and lower halves of crankshaft main bearing cases (11). Install three crankshaft main bearing cases (11). Note: Be careful not to damage the bearings. Match each lower crankshaft main bearing case and the upper main bearing case in order to ensure installation in the original location. The three crankshaft main bearing cases are marked A-B-C with side markings FLYW and HEEL to face toward the flywheel. The rear crankshaft main bearing case to be installed with the bolt holes facing toward the rear of the cylinder block.
Illustration 4 g02715313
Illustration 5 g02715314
Apply Tooling (C) to crankshaft main bearings (7). Install crankshaft main bearings (7) in the upper half of crankshaft main bearings case (10). Position crankshaft main bearings case (10) on the crankshaft.
Put Tooling (C) on thrust bearing (9) and install a new thrust bearing for the rear main bearing only. Install the new thrust bearing (9) with the flat surface against the crankshaft main bearing case (10). Apply Tooling (C) to crankshaft main bearings (7). Install crankshaft main bearings (7) in the lower half of crankshaft main bearings case (8). Position crankshaft main bearings case (8) on the crankshaft.
Illustration 6 g02715310
Install rear crankshaft main bearing case (6) onto the crankshaft.
Illustration 7 g02716456
Install bolts (5). Apply engine oil to threads and tighten bolts (5) to a torque of 46 to 50 N m (34.0 to 37.0 lb ft).
Illustration 8 g02715301
Install crankshaft (4). Install three bolts (3). Tighten bolts (3) to a torque of 69 to 73 N m (51 to 54 lb ft).
Illustration 9 g02715938
Position the gaskets and bearing case cover (1). Install bolts (2). Apply engine oil to threads and tighten bolts (2) to a torque of 24 to 27 N m (18 to 20 lb ft). End By:
Install the front housing.
Install the flywheel.
Install the piston and connecting rods.