Engine: Service and Repair

1982 V6-252, EXC. ELDORADO & SEVILLE
Removal
1. Mark hood hinge and hinge bracket for installation alignment, then remove hood.
2. Remove battery ground cable.
3. Drain engine coolant, remove air cleaner, then disconnect A/C compressor ground wire from mounting bracket.
4. Disconnect compressor clutch connector.
5. Remove compressor from mounting bracket and position out of the way.
6. Remove fan, pulley and belts.
7. Disconnect radiator and heater hoses and position aside, then remove radiator and fan shroud.
8. Remove power steering pump from bracket and position aside.
9. Disconnect and plug fuel pump hose.
10. Disconnect vacuum feed hose from carburetor, then the vacuum modulator and power brake vacuum hoses from engine.
11. Disconnect the three evaporative canister to carburetor hoses.
12. Disconnect throttle and TV cable from carburetor.
13. Disconnect Cruise Control servo cable at mounting bracket, if equipped.
14. Disconnect all sending unit switch connections from engine. Remove alternator, then disconnect engine wiring harness at engine.
15. Raise and support vehicle, then disconnect engine wiring harness at starter and remove starter.
16. Disconnect exhaust pipes from exhaust manifold.
17. Remove lower flywheel cover, then mark flywheel and converter for reassembly alignment. Remove converter to flywheel bolts.
18. Remove engine to transmission bolts and engine mount through bolts.
19. Lower vehicle and support transmission. Using a suitable lifting device, raise engine. Ensure wiring harness, vacuum hoses and other parts are clear of engine before removal.
20. Lift engine just enough to clear engine mounts, then lift transmission support evenly and alternately until engine is separated from transmission and can be removed.
Installation
1. Lower engine into vehicle, engaging transmission. Align flywheel and converter marks, then install and torque flywheel bolts to 35 ft. lbs.
2. Install and tighten engine mount through bolts and nuts.
3. Raise and support vehicle, then install transmission to engine bolts and torque to 35 ft. lbs.
4. Install starter, then install flywheel cover. Connect starter electrical leads.
5. Connect exhaust pipes to exhaust manifolds.
6. Lower vehicle, then connect engine wiring harness, throttle cable, vacuum and water hoses, emission control line from canister to air cleaner and the transmission cooler line clip to exhaust manifold stud.
7. Connect battery ground cable to A/C compressor bracket.
8. Connect fuel line to fuel pump.
9. Install power steering pump into bracket. Adjust power steering belt tension.
10. Install fan shroud and radiator assembly. Attach radiator hoses and transmission cooler lines.
11. Install pulley, fan and belts. Adjust belt tension.
12. Install A/C compressor into bracket and connect wiring.
13. Install alternator to bracket and connect wiring.
14. Install air cleaner.
15. Install engine coolant; ensure proper level is attained after engine reaches operating temperature.
16. Connect negative battery cable to battery.
17. Install hood, aligning marks made at removal.