Reassembly & Installation
- To reassemble, reverse disassembly procedure. Coat components with engine oil before installation. Tighten oil pump cover bolts to specification. See TORQUE SPECIFICATIONS at end of article. Ensure rotors rotate freely by hand after oil pump cover is installed.
- To install, reverse removal procedure. Ensure oil pump pins are installed in cylinder block before installing oil pump. Install Oil Seal Guide (J-34853) on crankshaft to prevent damage to oil seal during oil pump installation. Coat oil seal guide with oil before installing oil pump.
- Ensure bolts are installed in proper location and thread sealant is applied on designated bolt. See Fig 1. Tighten bolts to specification. See TORQUE SPECIFICATIONS at end of article. Cut oil pump gasket even with cylinder block. Remove oil seal guide.
- To install remaining components, reverse removal procedure. Use new "O" ring on dipstick tube and seal on oil pump pick-up tube. Install new seal between oil pump and water pump.
Courtesy of GENERAL MOTORS CORP.