240 L4-2127cc 2.1L SOHC Turbo B21FT FI (1982)
Altitude Compensator: Testing and Inspection
B21FT turbo engine only
Testing warm-up regulator with altitude compensator:
1.
Connect pressure tester Bosch KDEP 1034 (see "Mounting pressure tester"). Use the test specifications for your specific warm-up regulator (see
Fig. 98. and Fig. 184.).
Fig. 95 BOSCH PRESSURE TESTER
Mounting pressure tester:
2.
Pressure tester KDEP 1034 was initially supplied with a three-way changeover valve operated by a single lever. In newer models this lever is
replaced by a directional control valve with two hollow screws. The connections on the directional control valve and the changeover valve are
numbered the same. Fig. 95.
Fig. 96 FUEL SYSTEM PRESSURE TESTING
3.
The pressure tester is connected in the control pressure line between the warm-up regulator and the fuel distributor as shown. Fig. 96.
4.
Clean the fuel fittings. Unscrew the control pressure line from the fuel distributor and attach the line to connection 1 on the tester valve as shown
(260 series require adapter 1 from connecting parts KDEP 1034/10 as shown). Attach connection 3 of the tester valve to the fuel distributor with
the connecting hose (260 series require adapter 3 from connecting parts KDEP 1034/10 as shown). Attach connection 2 to the pressure gauge with
the other connecting hose.
5.
Disconnect the electric plug from the warm-up regulator and the auxiliary air valve. With the tester hoses fully extended, let the gauge hang down
under its own weight so that the gauge is lower than the fuel lines.
6.
Bridge the electric safety circuit (see and switch the ignition on to run the fuel pump. If the changeover valve is used, move the control lever back