Subsequent installation of choke cover-stepped heater

1974 Federal

Voltage at pre-resistor output

above + 17 °C engine oil temperature below + 17 °C engine oil temperature

approx. 12 volts approx. 5 volts

Voltmeter

In the event of complaints about poor engine output a choke cover-stepped heater can be installed in warming-up stage between — 5 °C to + 5 °C of (@) 1974 Federal version as a remedy.

1    Attach pre-resistor (1) to auxiliary mounting bracket (2). Connect long cable of auxiliary cable harness at top to pre-resistor.

2   Attach auxiliary mounting bracket (2) to relay bracket.

3   Attach both relays (3) to auxiliary bracket (2). Attach plug of auxiliary harness to relay. Then install auxiliary harness in downward direction along main harness toward fuse box.

4   Attach grounding cable of auxiliary harness to ignition coil bracket. Disconnect connecting plug for engine oil temperature switch 17 °C laterally on front end carrier and connect to auxiliary harness. Engage connecting plug in clip.

5   Connect auxiliary harness with fuse no. 3 of fuse box.

6   Remove air filter and check whether a choke cover with code number “104” is installed and install, if required.

7   Pull cable from choke cover and disconnect cable terminal. Then insulate end of cable and slip plug of auxiliary line harness on choke cover.

8   Check choke cover-stepped heater for function (07.2-145).

Flat rate (includes choke cover, exchange):

Basic job:            20 work units or 1.7 hours

Connected job: 17 work units or 1.4 hours

Quantity                             Designation                                                                                  Part no.

2                                          Relay                                                                                           001 542 02 19

1                                          Auxiliary bracket                                                                         114 542 14 40

1                                          Auxiliary line harness                                                                   114 540 47 09

1                                          Choke cover “144”                                                                      000 07128 28

1                                          Pre-resistor                                                                                   001 545 11 18