1820B21 (PUMP) - MASTER CYLINER R.R. FOR RIGHT HAND DRIVE VERSIONS - Alfa - 156 - eLearn

3237898 - 1820B21 (Pump) - MASTER CYLINER R.R. for right hand drive versions

) Ensure that the ignition key is in the OFF position, then disconnect the negative battery terminal (-).

	Name	Connector
-	Battery	A1B

- 1008C10 power unit upper reaction link r r1. Open the electrical connections box cover.2. Disconnect the engine coupling.3. Disconnect the electrical connections (3a) and (3b) for the rear Lambda sensors and the catalytic converter.

	Name	Connector
3a	Lambda sensor on catalyzer	K17

	Name	Connector
3b	Lambda sensor on catalyzer -2	K18

4. Disconnect the electrical connection for the detonation sensor, timing side.

	Name	Connector
4	Detonation sensor - 1	K50

1. Undo the bolts (1a) and remove the connections box (1b).

Drain the brake-clutch fluid from the reservoir using a suitable syringe.1. Disconnect the hoses from the brake fluid reservoir to the master cylinder, master cylinder side, and release from the retaining collars.2. Release fitting (2a) from the rigid delivery pipe (2b) from the master cylinder.3. Disconnect the hose from the reservoir to the master cylinder on the master cylinder side.

1. Remove the split pin (1a) and disconnect the master cylinder rod (1b) from the clutch pedal.2. Undo nuts (2a) and remove master cylinder (2b) complete wiht the first section of hose leading to the brake-clutch fluid reservoir.

Refitting ( Removing

) Fit the master cylinder and pass the first section hose leading ot hte brake-clutch fluid reservoir into the engine bay.Secure the master cylinder with nuts.Connect the master cylinder to the clutch pedal and secure it with its split pin.Connect the hose from the reservoir to the master cylinder on the master cylinder side.Connect the connector of the rigid delivery pipe from the master cylinder on the master cylinder side.Connect the brake hoses leading to the reservoir, to the master cylinder.Position the connector box and secure with bolts.Connect the electrical connection for the detonation sensor, timing side.

	Name	Connector
-	Detonation sensor - 1	K50

Connect the electrical connections for the rear Lambda sensors to the catalytic converter.

	Name	Connector
-	Lambda sensor on catalyzer	K17

	Name	Connector
-	Lambda sensor on catalyzer -2	K18

Connect the engine junction.Close the connection box cover. - 1008C10 power unit upper reaction link r r- 0010T64 brake and or clutch fluid check level and top up as necessary - 0010T65 hydraulic brake system bleed air - 0010T67 hydraulic clutch system bleed airConnect the negative (-) battery terminal.