REPAIR FOR COMPONENT PARTS
Control Valve Body (Cont'd)
DISASSEMBLY
1. Remove oil Strainer.
SAT564
2. Separate lower body, separator plate and upper
body.
Be careful not to scatter or lose orifice check valve,
servo orifice check valve, or throttle relief check
valve (ball)
and related spring.
AT168
INSPECTION
A newly manufactured valve body represents
precision manufactured valves assembled with close
tolerances into precision bores of the valve body
If inspection reveals excessive clearances, 0.03 mm
(0 0012 in) or more, between the valves and the
valve body bores, replace the entire valve body
rather than attempt rework
If one or more valves are sticking from varnish
deposits or burns resulting from deteriorated oil or
overheating, you may be able to clean the valves
and valve bodies. Always use crocus cloth, which is
a very fine type of cutting material Never use
emery cloth,
as it is too coarse and can scratch the
valves or valve bores Scratches can lead to future
deposits of varnish or foreign matter
During cleaning, do not remove the sharp edges of
the valve When
edges are rounded or scratched,
entry
is provided for dirt or foreign matter to work
into the sides
of the valves and hinder valve move-
ment
The valves may be cleaned using alcohol or lacquer
thinner The valve bodies can be dip cleaned with
a good carburetor cleaner or lacquer thinner. Do
not leave valve bodies submerged in carburetor
cleaner longer than five minutes Rinse parts
thoroughly
and dry
Lubricate
all parts in clean AT F before reassem-
bly
1 Check valves for signs of burning Replace if
2 Check oil strainer for general condition.
beyond clean-up
Replace
if necessary
SATMS
AT-36
