INSTALL STUD BOLT
Note
If a stud bolt is deformed or its threads are damaged, replace it.
| *a | Cylinder Head Upper Side | *b | Intake Side |
| *c | Front Side | *d | Exhaust Side |
Using E6, E7 and E8 "TORX" socket wrenches, install the stud bolts.
INSTALL NO. 1 HEAD STRAIGHT SCREW PLUG
Note
If coolant leaks from the No. 1 head straight screw plug or the plug is corroded, replace it.
Using a 10 mm hexagon wrench, install 3 new gaskets and the straight screw plugs.
INSTALL NO. 2 HEAD STRAIGHT SCREW PLUG
Note
If coolant leaks from the No. 2 head straight screw plug or the plug is corroded, replace it.
Using a 19 mm hexagon wrench, install a new gasket and the straight screw plug.
INSTALL VALVE SPRING SEAT
Install the 16 valve spring seats to the cylinder head.
INSTALL VALVE STEM OIL SEAL
| *1 | Gray |
| *2 | Black |
| *a | Intake Side |
| *b | Exhaust Side |
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 an intake oil seal to the exhaust side or installing an exhaust oil seal to the intake side can cause installation problems later.
Tech Tips
The intake valve oil seals are gray and the exhaust valve oil seals are black.
| *1 | Valve Stem Oil Seal |
Using SST, push in the 16 oil seals to install them.
Note
Failure to use SST will cause the seal to be damaged or improperly seated.
INSTALL INTAKE VALVE
| *a | 30 mm (1.18 in.) or more |
Apply plenty of engine oil to the tip area of the intake valve shown in the illustration.
Install the valve, compression spring and spring retainer to the cylinder head.
Note
Install the same parts in the same combination to the original locations.
Using SST and wooden blocks, compress the spring and install the 2 retainer locks.
| *1 | 5 mm Pin Punch |
Using a 5 mm pin punch and plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.
Note
Do not damage the valve stem tip.
INSTALL EXHAUST VALVE
| *a | 30 mm (1.18 in.) or more |
Apply plenty of engine oil to the tip area of the intake valve shown in the illustration.
Install the valve, compression spring and spring retainer to the cylinder head.
Note
Install the same parts in the same combination to the original locations.
Using SST and wooden blocks, compress the spring and install the 2 retainer locks.
| *1 | 5 mm Pin Punch |
Using a 5 mm pin punch and plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.
Note
Do not damage the valve stem tip.