REMOVAL SERVICE POINTS |
<<A>> RETAINER LOCK REMOVAL |
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1.Using special tool Valve
spring compressor (MD998735), compress the
spring. 2.Remove the retainer locks. |
<<B>> VALVE STEM SEAL REMOVAL |
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Using the special tool Valve stem
seal pliers (MB992085), nip the valve stem seal and
remove it. |
INSTALLATION SERVICE POINTS |
>>A<< VALVE STEM SEAL INSTALLATION |
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1.The special tool valve
stem seal installer adjustable (MB992922) is composed of the
components
shown in the illustration. 1: Chuck 2: Sleeve 3: Lock nut (small) 4: Outer pipe 5: Lock nut (large) 6: Guide pin (5.9) 7: Guide pin (4.9) 8: Cap 9: Guide pin (5.4) |
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2.Adjust the inside chuck
diameter, obeying the following procedures. (1) Install the sleeve to the chuck as shown in the illustration. (2) Install the shoulder of the valve stem seal to the chuck, aligning with the outer circumference line of the chuck as shown in the illustration. (3) Turn the sleeve to wring the chuck. (4) Stop the sleeve at the position where you can easily remove the valve stem seal by hand. (5) Use the (small) lock nut to fix the sleeve. |
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3.Adjust the stem seal
insertion length, obeying the following procedures. (1) The position, in which the end face of the outer pipe is aligned with the outer circumference line of the chuck, is 0 mm of the insertion length. Insert the chuck and the sleeve into the outer pipe to fit the nut as shown in the illustration. (2) Turn the chuck to adjust the valve stem seal insertion length.
Standard value: 18.2 mm (4) Use the (large) lock nut to fix the sleeve. |
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4.Install the cap to the
guide pin. 5.Install the guide pin as shown in the illustration. 6.Apply the engine oil to the valve stem seal to set the chuck. 7.Install the valve spring seat. |
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8.Use the plastic hammer to
insert the valve stem seal. |
>>B<< VALVE SPRING INSTALLATION |
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Install the valve spring end with
its identification colour toward the spring
retainer. Identification colour
Exhaust: Blue |
>>C<< RETAINER LOCK INSTALLATION |
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Using special tool Valve spring
compressor (MD998735), compress the valve spring and insert
the retainer lock into position. |
>>D<< CYLINDER HEAD BOLT INSTALLATION |
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1.Check in the following
procedure before reusing the cylinder head bolt. (1) Measure the outside diameter "A". (2) Measure the smallest outside diameter "B" within the range "X" shown in the illustration. (3) If the difference of outside diameter of thread exceeds the limit, replace the cylinder head bolt. Limit: 0.1mm |
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2.
Tightening torque: 45 ± 2 N·m |
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3.
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