At the engine side at first the flange has to be
cleaned with WD40 and a cleaning cloth.
To remove the rust from the surface WD40 has
to be dispersed over the whole surface of the
flange with slightly pressure.
Thereafter the rust can be removed with a
Scotch-Brite hand pad.
Fig. 85 - 33 Connecting Flange Engine Side
At the gearbox side the procedure to clean the
two-mass-flywheel is equal to the engine side.
Fig. 85 - 34 Connecting Flange Gearbox Side