Zundapp 281 - Page 26

Fig. 62
Fig. 63
Fig. 64
k) Inspecting Connecting Rod
Fit gauging ring SK-A 125, needle
bearing and gudgeon pin into con-
necting rod. Turn crankshaft down
until gudgeon pin lies against gaug-
ing ring. Check that it contacts
flush on both sides (fig. 62).
Gauge in turned-over position and
compare results
Adjust connecting rod as shown in
fig. 64.
On engines of type 281,
place two gauging bars SK-A 161
on both sides of the connecting rod
on the casing face accommodating
the cylinder base gasket. Turn the
crankshaft until the piston rod edge
lies agåinst the bars. Then repeat
the gauging in the opposite position.
Adjust the connecting rod as shown
in fig. 63.
Carry out final connecting rod sett-
ing with the setting bar MV 6-116
(fig. 64).
Assembling Piston and Cylinder
Fit the piston; the mark “Auslass“
(éxhaust port) must face towards
the exhaust. Introduce gudgeon pin
with service tool SK-A 163, fit
crankshaft cover, then fit retaining
rings. Position cylinder base gasket,
but without sealing compound
(fig. 65).
On engines of type 281,
use tool SK-A 272 to fit the gudgeon
pin.
26