Overhaul

CYLINDER HEAD

COMPONENTS:

DISASSEMBLY
1. REMOVE VALVE STEM CAP
(a) Remove the valve stem caps from the cylinder head.

HINT: Arrange the removed parts in the correct order.





2. REMOVE INTAKE VALVE
(a) Using SST and wooden blocks, compress the compression spring and remove the valve retainer lock.
SST 09202-70020 (09202-00010, 09202-01010, 09202-01020)
(b) Remove the retainer, compression spring and valve.

HINT: Arrange the removed parts in the correct order.





3. REMOVE EXHAUST VALVE
(a) Using SST and wooden blocks, compress the compression spring and remove the valve retainer lock.
SST 09202-70020 (09202-00010, 09202-01010, 09202-01020)
(b) Remove the retainer, compression spring and valve.

HINT: Arrange the removed parts in the correct order.





4. REMOVE VALVE STEM OIL SEAL
(a) Using needle-nose pliers, remove the oil seals.





5. REMOVE VALVE SPRING SEAT
(a) Using compressed air and a magnetic finger, remove the valve spring seat by blowing air onto it.

6. REMOVE NO. 1 STRAIGHT SCREW PLUG

NOTICE: If water leaks from the No. 1 screw plug or the plug is corroded, replace it.





(a) Using a 10 mm hexagon wrench, remove the 6 screw plugs and 6 gaskets.





7. REMOVE NO. 2 STRAIGHT SCREW PLUG
(a) Using a 14 mm hexagon wrench, remove the 2 screw plugs and 2 gaskets.

NOTICE: If water leaks from the No. 2 screw plug or the plug is corroded, replace it.

REASSEMBLY





1. INSTALL NO. 2 STRAIGHT SCREW PLUG
(a) Using a 14 mm hexagon wrench, install 2 new gaskets and the 2 straight screw plugs.
Torque: 85 N*m (867 kgf*cm, 63 ft.*lbf)





2. INSTALL NO. 1 STRAIGHT SCREW PLUG
(a) Using a 10 mm hexagon wrench, install 6 new gaskets and the 6 straight screw plugs.
Torque: 44 N*m (449 kgf*cm, 32 ft.*lbf)

3. INSTALL VALVE SPRING SEAT
(a) Install the valve spring seats to the cylinder head.





4. INSTALL VALVE STEM OIL SEAL
(a) Apply a light coat of engine oil to new oil seals.

NOTICE: Pay attention when installing the intake and exhaust oil seals. For example, installing the intake oil seal into the exhaust side or installing the exhaust oil seal to the intake side can cause installation problems later.

HINT: The intake valve oil seals are gray and the exhaust valve oil seals are black.





(b) Using SST, push in the oil seals.
SST 09201-41020

NOTICE: Failure to use SST will cause the seal to be damaged or improperly seated.





5. INSTALL INTAKE VALVE
(a) Apply plenty of engine oil to the tip area of the intake valve shown in the illustration.
(b) Install the valve, compression spring and spring retainer to the cylinder head.

NOTICE: Install the same parts in the same combination to original locations.





(c) Using SST and wooden blocks, compress the spring and install the retainer lock.
SST 09202-70020 (09202-00010, 09202-01010, 09202-01020)





(d) Using a plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.

NOTICE: Be careful not to damage the retainer.





6. INSTALL EXHAUST VALVE
(a) Apply plenty of engine oil to the tip area of the exhaust valve shown in the illustration.
(b) Install the valve, compression spring and spring retainer to the cylinder head.

NOTICE: Install the same parts in the same combination to their original locations.





(c) Using SST and wooden blocks, compress the spring and install the retainer lock.
SST 09202-70020 (09202-00010, 09202-01010, 09202-01020)





(d) Using a plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.

NOTICE: Be careful not to damage the retainer.

7. INSTALL VALVE STEM CAP
(a) Apply a light coat of engine oil to the valve stem caps.
(b) Install the valve stem caps to the cylinder head.