PROCEDURE
INSTALL STUD BOLT
Note
If the stud bolt is deformed or its threads are damaged, replace it.
Using E7 and E8 "TORX" socket wrenches, install the stud bolts.
| *A | LH for Intake Side | *B | LH for Exhaust Side |
| *C | LH for Front Side | *D | RH for Intake Side |
| *E | RH for Exhaust Side | *F | RH for Front Side |
INSTALL NO. 2 STRAIGHT SCREW PLUG
| *A | LH |
| *B | RH |
Note
If water leaks from the No. 2 straight screw plug or the plug is corroded, replace it.
Using a 14 mm hexagon wrench, install 2 new gaskets and the 2 straight screw plugs.
INSTALL NO. 1 STRAIGHT SCREW PLUG
| *A | LH |
| *B | RH |
Note
If water leaks from the No. 1 straight screw plug or the plug is corroded, replace it.
Using a 10 mm hexagon wrench, install 6 new gaskets and the 6 straight screw plugs.
INSTALL VALVE SPRING SEAT
Install the valve spring seats to the cylinder head.
INSTALL VALVE STEM OIL SEAL
| *A | Intake Side |
| *B | Exhaust Side |
| *1 | Brown |
| *2 | Gray |
Apply a light coat of engine oil to new oil seals.
Note
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 into the intake side can cause installation problems later.
Tech Tips
The intake valve oil seals are brown and the exhaust valve oil seals are gray.
| *a | CORRECT |
| *b | INCORRECT |
Using SST, push in the oil seals.
Note
Failure to use SST will cause the seal to be damaged or improperly seated.
INSTALL INTAKE VALVE
| *a | 40 mm (1.57 in.) or more |
Apply plenty of engine oil to the tip area of the intake valve shown in the illustration.
| *a | Narrow |
| *b | Wide |
Install the intake valve, compression spring and valve spring retainer to the cylinder head.
Note
Install the same parts in the same combination to their original locations.
Install the inner compression spring to the wide end of the cylinder head sub-assembly.
Using SST and wooden blocks, compress the spring and install the retainer locks.
Using a plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.
Note
Do not damage the valve stem tip.
Be careful not to damage the retainer.
INSTALL EXHAUST VALVE
| *a | 40 mm (1.57 in.) or more |
Apply plenty of engine oil to the tip area of the exhaust valve shown in the illustration.
| *a | Narrow |
| *b | Wide |
Install the exhaust valve, compression spring and valve spring retainer to the cylinder head.
Note
Install the same parts in the same combination to their original locations.
Install the inner compression spring to the wide end of the cylinder head sub-assembly.
Using SST and wooden blocks, compress the spring and install the retainer locks.
Using a plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.
Note
Do not damage the valve stem tip.
Be careful not to damage the retainer.