Temperature gauge sender unit - removal and refitting

Note: Suitable jointing compound will be required on refitting.

Removal
1 With the engine cold unscrew the pressure cap on the thermostat housing or expansion tank as applicable, then refit it. This will release any residual pressure in the system and minimise coolant loss when the sender unit is removed.

2 Disconnect the wiring and unscrew the sender unit located on the forward facing side of the cylinder head, below the thermostat housing on OHV engines, or adjacent to the thermostat housing on CVH engines (see illustrations).

7.2a Temperature gauge sender unit location in cylinder head - OHV engines
7.2a Temperature gauge sender unit location in cylinder head - OHV engines

7.2b Temperature gauge sender unit location in cylinder head - CVH engines
7.2b Temperature gauge sender unit location in cylinder head - CVH engines

Refitting 3 To refit, smear the threads of the sender unit with jointing compound and screw it into the cylinder head securely.

4 Reconnect the wiring and top-up the cooling system as described in Chapter 1.

    See also:

    Inlet manifold - removal and refitting
    Caution: Refer to the precautions in Section 1 before proceeding. Note: A tachometer and an exhaust gas analyser will be required to check the idle mixture on completion. A new gasket must be us ...

    Fuel evaporative emission control system components (Central Fuel Injection/CFI engines) - removal and refitting
    Carbon canister Removal 1 The carbon canister is located behind the bumper, under the front right-hand wheelarch (see illustration). 5.1 Carbon canister location (wheelarch liner removed) - CFI ...

    Crankshaft rear oil seal - renewal
    Note: New flywheel/driveplate bolts must be used on refitting. 1 Remove the flywheel/driveplate and the engine adapter plate. 2 Extract the seal using an oil seal removal tool if available. It ma ...