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Valve-to-guide Clearance Measurement (wobble Method) - Kawasaki ZR-7S Service Manual

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3-26
ENGINE TOP END
Valves
.
Usingthe valve guidearbor,drive the valve guide in until
its snap ring comes in contact with the head surface.
NOTE
o Apply a thin coat of oil to the outer surface of the valve
guide.
OHeat the area around the valve guide to 120
-
1500 C
(248
-
3020 F).
Special Tool- Valve Guide Arbor,
cp7: 57001-163
.
Ream the valve guide with the valve guide reamer.
Special Tool- Valve Guide Reamer,
cp7: 57001-162 [A]
Valve-to-Guide
Clearance
Measurement
(Wobble
Method)
If a small bore gauge is not available, inspect the valve
guide wear by measuring the valve to valve guide clearance
with the wobble method as indicated below.
.Insert a new valve [A] into the guide [8] and set a dial
gauge against the stem perpendicular to it as close as
possible to the cylinder head mating surface.
Move the stem back and forth [C] to measure valve/valve
guide clearance.
ORepeat the measurement in a direction at a right angle to
the first.
*If the reading exceeds the service limit, replace the guide.
NOTE
o
The reading is not actual valve/valve guide clearance
because the measuring point is above the guide.
ValveNalve Guide Clearance (Wobble Method)
Standard:
Inlet
Exhaust
0.07 - 0.15 mm (0.0028 - 0.0059 in.)
0.06 - 0.14 mm (0.0024 - 0.0055 in.)
Service Limit:
Inlet
Exhaust
0.30 mm (0.0118 in.)
0.28 mm (0.0110 in.)

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