Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK1968SPORTWAGON BASE, 6.6L ENG, AUTOMATIC TRANS, TRANS MFR CD THM350REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICALENGINE REMOVALCADILLAC1966-67 (EXC. ELDORADO)
1968 Buick Sportwagon Base, 6.6L Eng, Automatic Trans, Trans Mfr CD THM350
1966-67 (Exc. ELDORADO)
1968 Buick Sportwagon Base, 6.6L Eng, Automatic Trans, Trans Mfr CD THM350SECTION 1966-67 (Exc. ELDORADO)
NOTE:
Transmission and engine must be removed as an assembly.
- Raise car, disconnect battery, remove air cleaner, and drain cooling system. Unbolt air conditioner compressor and move to side without disconnecting hoses. Disconnect cooler lines and hoses and remove radiator.
- Remove fan assembly and pulley. Unbolt power steering and move to side without disconnecting hoses. Remove exhaust crossover pipe. Disconnect idler arm support from frame and move idler arm to one side.
- Disconnect all lines, wiring, and linkage to engine and transmission. Remove two front engine support mount to frame stud nuts. Disconnect propeller shaft and remove hood. Support rear of transmission to take load from engine rear support crossmember. Disconnect and remove engine rear support crossmember.
- On cars with A.I.R., make scribe marks on crankshaft pulley, spacer, and harmonic balancer, then remove six screws and remove crankshaft pulley. Remove four screws in air pump pulley and remove pulley.
- Remove engine compartment struts. Support engine with cable under intake manifold and remove support from under transmission. Tilt rear of engine down and lift engine and transmission from car.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.