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9-3. Possible Causes and Correction of Air Leakage
Repair procedure
Air leakage repair location
(1) Check the points of the following parts marked by an
asterisk * for abnormal condition.
(2) Next, check the seal parts marked with a double
circle
for wear, flaw and damage.
(3) And then, check other places.
Control valve section
Possible cause
Air leakage point
With control valve OFF
A) Exhaust port
With control valve ON
The O-ring (I.D 49.4) [8] of the Head Valve
The Exhaust Valve Rubber [11] is abnormal
[9] is abnormal or its sliding surface a is
or the sliding surface c of the Head Valve
worn, deformed or flawed.
[9] is worn or flawed.
The Valve Rubber [14] is abnormal or the
sealing surface b of the Head Valve [9] is
worn or flawed.
B) Exhaust cover
The Hex. Socket Hd. Bolt (W/Flange)
M6 x 30 [4] is loose.
Gasket (A) [6] is damaged.
Seal surface of the Body Ass'y [24] or the
Exhaust Cover [5] is abnormal.
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