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Westerbeke Universal M-50 - Replacing Rocker Arm Bushings; Replacing Valve Guides; Replacing Valve Guides, Bushings and Bearings

Westerbeke Universal M-50
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REPLACING
VALVE
GUIDES, BUSHINGS AND BEARINGS
REPLACING VALVES GUIDES
1.
Prepare the necessary tool as shown
in
Fig
(A).
2.
Press out the used valve guide from the cylinder head's lower end.
3.
Apply engine oil to the outer surface of the new valve guide; press fit the valve guide
from
the
upper end of the
cylinder head until the flange part of the valve guide contacts the cylinder
head.
4.
After press-fitting, finish the valve guide
by
means of reemer machining
to
dimensions shown
in
Figs.
(B)
and
(C).
NOTE~
Be
careful not
to
strike valve guides with a
hammer,
during replacement.
(A)
Tool
for
replacing valve guides
(8)
Finishing size
of
inlet
valve guide
(e)
Finishing size
of
exhaust valve guide
REPLACING ROCKER ARM BUSHINGS
1.
Prepare the necessary tool
as
shown
in
Fig.
(A).
2.
Press out the used bushing and, using this tool, press fit the new bushing, taking due care to
see that the rocker
arm
hole matches the bushing hole.
CA)
Tool
for replacing rocker arm bushing
[B] Rocker
arm
and
bushing, as assembled
137
(5.40")
(2)
tOO
13.94") 25 10.9S") 12 10.47"1
_ 128

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