Rocker Arm Clearance - Winnebago 1987-1989 LeSharo Service Manual

b'=..
ROCKER ARM CLEARANCE ADJUSTMENT
(SECOND PROCEDURE)
• Adjust intake
valve
number two (2) and exhaust
valve number four (4) with Adjustment Tool Mot.
647 to obtain the specified clearances. Refer to
the Rocker Arm Clearances chart.
• Rotate the crankshaft slowly until the number
two (2) index (E) on the alignment rotor (A) is
aligned with the flexible pointer (B).
• Refer to the Rocker Arm Clearance Adjustment
Sequence chart and continue until all the rocker
arm clearances have been adjusted.
Intake
0.10-0.15 mm
(0.004-0.006 in)
Exhaust
0.20-0.25 mm
(0.008-0.010 in)
Valve Timing with Theoretical'" Rocker Arm Clearance of 0.35 mm (0.014 in.)
"'Theoretical clearance is a
reference
for
valve
timing check only and
does
not indicate normal running
clearances .
Intake
Valve
Opens
Intake Valve Closes
Exhaust Valve Opens
Exhaust Valve Closes
A.B.D.C.
B.B.D.C.
A.T.D.C 52° 52° 12°
ROCKER ARM CLEARANCE ADJUSTMENT SEQUENCE
\
r
i
r
r
.
L
[:
4
2
3
Exhaust
2
3
4
Intake
2
3
4
Mark on Alignment Rotor
• Remove the flexible pointer from the cylinder
head and the alignment rotor from the distributor.
B5-6