Fitting the timing block - 860
The figure shows the
timing block already
fitted and fixed with four screws, to be
tightened with a 6 mm hexagonal wrench.
Checking the end play of the two spindles
Drive a 6 mm screw in the spindle centre,
then push and pull to check if there is end
play, which couldbe eliminated by placing
thrust washers under the two spindles.
Such end play does not cause any
malfunction and limited end play may be
allowed. However it is very important to
check that there is no play under the two
conical gears fitted to the above spindles
and the mesh is regular and not worn. The
meshing surfaces must be properly align-
ed. A correct fitting of the bevel gears
means quiet running and long engine life.
Fitting the central bèaring r.ing
The figure shows. the' central ring of .the
bearing already fitted. Before fitting this
ring it is necessary to fit the distance piece
as a sup~ort ~gainst the central gear.