3853048 Volvo.Penta Bearing, main, upper, 0.020 in. U.S.

1. Remove suction bell (3) and tubes, oil supply tube (2) and BrakeSaver oil supply tube (1) from the engine block and oil pump. 2. Remove three bolts (5) and oil pump (4) from the engine. The following steps are for installation of the oil pump.3. Put oil pump (4) in position on the engine. Ensure that the oil pump gear is engaged with the crankshaft gear, and install three bolts (5) that hold the oil pump.4. Put clean engine oil on the O-ring seals on the oil tubes.5. Install suction bell (3) and tubes, oil supply tube (2) and the BrakeSaver oil supply tube (1).End By:a. install oil pan (BrakeSaver)Disassemble Oil Pump (BrakeSaver)
Start By:a. remove oil pump (BrakeSaver) Fluid Spillage ContainmentCare must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to the Tools And Shop Products Guide, NENG2500, for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates. 1. Remove the bolt and washer that hold drive gear (1) on the shaft.2. Use Tooling (A) to remove drive gear (1) from the shaft. Remove the key from the shaft. Put alignment marks on the pump bodies so they can be assembled in the correct position. 3. Remove retainer (3) for the bypass valve. Remove the spring and bypass valve.4. Remove bolts (4) that hold pump body (2) to the main pump body. Remove pump body (2).5. Use Tooling (B) to remove the bearings from pump body (2). 6. Remove gears (7). Put identification marks on the gears so they can be assembled in the same position.7. Remove spacer (6) from main oil pump body (5). Use Tooling (B) to remove the bearings from spacer (6).8. Remove the gears from main oil pump body (5). 9. Use Tooling (B) to remove the bearings from the main oil pump body.Assemble Oil Pump (BrakeSaver)
1. Use Tooling (A) to install bearings (8) until they are even with the outside surface of main oil pump body (5). Install bearings (8) so the joints in the bearings are 30 15 degrees from the center line of the bearing bores and toward the oil pump outlet passage, as shown. 2. Use Tooling (A) to install bearings (9) in the spacer. Install the bearings until they are in position an equal distance in from each side of the pacer. Install the bearings with the oil holes in the bearings in alignment with the oil holes in the spacer and the joints in the bearings in alignment with the cavity on the spacer, as shown. 3. Put clean engine oil on all the gears and bearings before they are assembled in the oil pump. Install idler and drive gears (10) in the main oil pump body.4. Install spacer (6) on the gear shafts with the smaller cavity out and the oil holes in the spacer toward the pump outlet passage, as shown. 5. Use Tooling (A) to install bearings (11) in pump body (2) until they are 1.52 0.25 mm (.060 .010 in) from the inside edge of the bearing ores. Install the bearings so the joints in the bearings are 30 15 degrees from the center line of the bearing bores and toward the outlet passage. The outlet passage has a cavity between the bearing bores. 6. Install pump gears (7) on the oil pump shafts in their original position.7. Install pump body (2). Install bypass valve (12) spring (13) and retainer (3).8. Install the key on the shaft. 9. Install gear (1) on the shaft. Install the washer and bolt that hold the gear on the shaft. Be sure the pump turns freely after assembly.End By:a. install oil pump (BrakeSaver)