Engine/Transmission

ENGINE / TRANSMISSION UNIT RENEW

The engine/transmission unit on the AJ16 normally aspirated and supercharged engined vehicles are fitted onto three engine mounting/bracket assemblies. The two front engine mountings for the 3.2/4.0 liter normally aspirated and the 4.0 liter supercharged engined vehicles are identical. They are fitted to the front crossmember on either side of the engine bay. Rubber to metal engine/transmission rear mounts used for both engine types, are secured to a support bracket which traverses the two body underframe longitudinal members. For access to remove the engine carry out the following procedures:

WARNING: WHEN WORKING WITHIN THE ENGINE COMPARTMENT, KEEP CLEAR OF THE RADIATOR COOLING FANS AS THEY COULD START WITHOUT WARNING EVEN IF THE ENGINE IS NOT RUNNING.

- Remove the hood.

- Remove the air cleaner assembly.

- Depressurize the fuel system.

- Disconnect the battery.

- Remove all appropriate obstructing parts, including their fixing and mounting arrangements.

- Disconnect all mechanical and isolate all electrical linkages leading to and from the engine.

- De-gas the air conditioning system, Heating and Air Conditioning, Charge Recovery (System depressurization).

CAUTION: Do not vent refrigerant directly to the atmosphere and always use Jaguar approved recovery/recycle/recharge equipment.

- Drain the engine oil.

- Drain the coolant.

WARNING: DO NOT REMOVE THE HEADER TANK PRESSURE CAP WHILE THE ENGINE IS HOT. IF THE CAP MUST BE REMOVED, PROTECT THE HANDS AGAINST ESCAPING STEAM AND SLOWLY TURN THE CAP ANTI-CLOCKWISE UNTIL THE EXCESS PRESSURE CAN ESCAPE. LEAVE THE CAP IN THIS POSITION UNTIL ALL STEAM AND PRESSURE HAS ESCAPED AND THEN REMOVE THE CAP COMPLETELY.

Before lifting the complete engine/transmission unit with an engine hoist from the engine bay, ensure that two engine lifting brackets (tool 18G. 1465) are secured equally spaced to the inlet manifold studs. The engine lifting brackets should be positioned towards the front and the rear of the assembly. Ensure the front of the vehicle is jacked up securely on stands when removing the assembly.