Yanmar YM155d Service Manual page 48

Unit: in (rn
outer diameter
of
camshaft bearing
and cylinder block:
NOTES:
(1) To conduct the measurements referred to in Irem
I
above, the camshaft
is
secured
to
a
supporting stand, and the amount of run-out is measured using a dialgauge.
(2)
The cam journal clearance referred to in Irem 3 is the difference in the read-
ings obtained by measuremenrs of the two components taken using a micrometer
and a cylinder.
(3)
Valve timing and fuel injection timing is shown below
T.D.C.
7
B.D.C.
(4)
The clearance between the rappers and tappet guides referred to in Item 6 above
i s the difference benveen the readings for the components taken using a micro-
meter and a cylinder gauge.
(5)
Replacement of the camshaft ball bearing is conducted by first removing the old
bearing by a puller and press-fitting the new ones in position