Valve Seat Refacing; Valve Refacing; Valve Installation - Winnebago 1987-1989 LeSharo Service Manual

ENGI.E OVERHAUL AND REBUILD
CYLINDER HEAD
VALVE SEAT REFACING
Refer to the Engine Specifications; chart on page
81-13.
Use tapered stones to obtain thee specified seat
widths when necessary.
o
A. Correct Valve Facing
B. Incorrect Valve Facing
C. Valve Margin
D. No Valve Margin
indicator (E) and
mm
(0.0025
in).
Install the correct size pilot in each ~alve stem guide
bore and reface each valve seat
---to
the specified
angle. Use a dressing stone that is
in.
good condition.
Measure the seat runout with a dial
control it to a maximum of 0.0635
If any valve faces are excessively wo •••.nor the facing is
incorrect, they must be replaced.
Use valve spring compressor to
COI
mpress the valve
springs.
VALVE REFACING
The valves cannot be refaced.
VALVE INSTALLATION
Install the valves, replacement
deflectors (5), valve spring washers
(3), retainers (2) and locks (1).
valve stem oil
(4),
valve springs
2
3
5
4
R~-12