Rear Engine Plate: Service and Repair

The intermediate flange is provided with two additional bores for centering the fitted pins of automatic transmission 722.303 (W 4 A 040).

This intermediate flange is also installed on engines with automatic transmission 722.120 (W 4 B 025). Part no. 615 011 02 45.






Production breakpoint : February 1980

Installation and centering






1 Insert intermediate flange into fitted pins on cylinder crankcase.
2 Slightly tighten the four fastening screws.
3 Screw threaded bolt (self-made) into crankshaft and counterlock with hex. nut.






Shown on engine 116

4 Attach dial gauge holder with dial gauge to threaded bolt.
5 Position feeler pin against OD of round center.
6 Turn crankshaft with tool combination and measure vertical runout. Vertical runout should not exceed max. 0.10 mm.

NOTE: When turning crankshaft, make sure that feeler pin of dial gauge is not getting stuck.

7 Correct vertical runout by means of light blows against intermediate flange.






8 Tighten fastening screws.

NOTE: If the vertical runout exceeds 0.10 mm, remove intermediate flange.

9 Drill both fitted bores in intermediate flange to 12.1 mm.
10 Repeat steps 1-8.