Oil Pump Assemble Buick Century VI

Tools Required

1. J 21882 Oil Suction Pipe Installer. See «Special Tools and Equipment»(ref-189348-S03958070272005090900000) .
2. J 22144 Oil Suction Pipe Installer. See «Special Tools and Equipment»(ref-189348-S03958070272005090900000) .

Scheme 375

Scheme 376

Scheme 377

1. Lubricate all the internal oil pump parts using engine oil during assembly.
2. Install the oil pump gears.
3. Install the oil pump cover. NOTE: Refer to «FASTENER NOTICE»(ref-175132-S17785009232005041500000) in Cautions and Notices.
4. Install the oil pump cover bolts. Tighten Tighten the oil pump cover bolts to 10 N.m (89 lb in).
5. Install the pressure regulator valve.
6. Install the pressure regulator spring.
7. Install the cotter pin. IMPORTANT: Make sure the cotter pin is properly secured.
8. Apply sealer GM P/N 12346004, (Canadian P/N 10953480) or the equivalent to the new suction pipe.
9. Tap the new suction pipe into place using a plastic hammer. Use the J 21882 for 5/8 inch pipe or J 22144 for 3/4 inch pipe.

Scheme 378

Scheme 379

Scheme 380

1. Remove the crankshaft position sensor bolts from the engine front cover.
2. Remove the crankshaft position sensor. CAUTION: Refer to Cleaning Solvent Caution in Cautions and Notices.
3. Clean the engine front cover with cleaning solvent.
4. Inspect the engine front cover sealing surfaces for damage.
5. Inspect the engine front cover threaded holes.
6. Repair or replace the engine front cover as necessary.
7. Install the crankshaft position sensor to the engine front cover. NOTE: Refer to «FASTENER NOTICE»(ref-175132-S17785009232005041500000) in Cautions and Notices.
8. Install the crankshaft position sensor bolts. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or the equivalent to the threads. Tighten Tighten the crankshaft position sensor bolts to 10 N.m(89 lb in).

Scheme 381

1. Remove the rubber grommets.
2. Clean the valve rocker arm cover.
3. Inspect the valve rocker arm cover for damage. Replace the valve rocker arm cover if necessary.

Scheme 382

1. Remove the oil level sensor bolt, if equipped.
2. Remove the oil level sensor, if equipped. CAUTION: Refer to Cleaning Solvent Caution in Cautions and Notices.
3. Clean the oil pan in solvent. Remove all sludge and debris from the bottom of the oil pan.
4. Inspect the oil pan sealing surfaces for damage. Replace the oil pan if necessary.
5. Install the oil level sensor, if equipped. NOTE: Refer to «FASTENER NOTICE»(ref-175132-S17785009232005041500000) in Cautions and Notices.
6. Install the oil level sensor bolt, if equipped. Tighten Tighten the oil level sensor bolt to 10 N.m(89 lb in).