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 THM350CREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICALENGINE REMOVALCORVETTE1965-70
1968 Buick Sportwagon Base, 6.6L Eng, Automatic Trans, Trans Mfr CD THM350C
Engine Removal: Corvette: 1965-70
1968 Buick Sportwagon Base, 6.6L Eng, Automatic Trans, Trans Mfr CD THM350CSECTION 1965-70
Engine and transmission must be removed as a unit as follows:Β
- Drain all systems, and disconnect all wires, hoses, and linkages. Remove radiator, fan blades and pulley. On 327" engines when draining cylinder block it will be necessary to remove the starting motor heat shielding and ignition lower shielding for clearance.
- On 327" engines, remove heater hoses at exhaust manifold routing clamp. Disconnect accelerator linkage at accelerator pedal, and ground straps at accelerator linkage and engine left front mount.
- On cars with automatic transmissions, disconnect cooler lines at transmission. On 327" engines, remove crankcase vent tube, then disconnect oil pressure gauge line.
- Remove exhaust pipe clamps at exhaust pipe support yoke (except on cars with side-mounted exhaust system). Attach lifting device to cylinder heads, raise and support transmission, and remove rear mount and exhaust pipe yoke.
- On cars with synchro-mesh transmissions, remove gearshift lever and bracket assembly from adapter plate on side of transmission.
- Remove propeller shaft bolts at transmission, wire yoke onto transmission and tape universal joint bearings to trunnion.
- Remove front mount through bolts and remove engine and transmission as a unit.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.