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7A–68 AUTOMATIC TRANSMISSION (4L30–E) Oil Pump Disassembled View 241RS014 Legend (1) Oil Pump Drive Gear (10) Throttle Signal Accumulator Piston (11) Sleeve Pin (12) Sleeve (13) Boost Valve (14) Spring Seat (15) Valve Spring (16) Spring Seat (17) Pressure Regulator valve (18) Oil Pump Assembly Disassembly 1. Remove oil pump drive gear (1) and driven gear (2). control valve (6). 4. Remove snap ring (7) from oil pump assembly (18). accumulator piston (10). 6. Remove sleeve pin (11) from oil pump assembly (18). (14), valve spring (15), spring seat (16), and pressure Inspection and Repair Visual Check: If any damage, deformation or wear is found, replace the Reassembly 1. Lubricate and preinstall pressure regulator spring seat (16) on valve (17), with the flat side against 2. Install pressure regulator valve (17) and spring seat (16) assembly, valve spring (15), and spring seat (14) 3. Assemble boost valve (13) into sleeve (12). pin (11) to oil pump assembly (18). 5. Install throttle signal accumulator piston (10), spring (9), and spring seat (8), with the flat side away from 6. Install converter clutch control valve (6), spring (5), plug (4), and pin (3) to oil pump assembly (18). 7. Install oil pump driven gear (2) and drive gear (1). |