Thoroughly clean all parts to be assembled.
Before installing the parts, apply fresh engine oil to all sliding and rotating surface.
Replace oil seals with new ones.
Install the valves.
Install the spring seats.
Using the SST (09222 - 2B100), push in a new oil seal.
Do not reuse old valve stem oil seals.
Incorrect installation of the seal could result in oil leakage past the valve guides.
Intake valve stem seals are different from exhaust ones in type.
Do not reassembly ones in the other's places.
Install the valve, valve spring and spring retainer, after applying engine oil at the end of each valve.
When installing valve springs, the enamel coated side should face the valve spring retainer.
Using the SST(09222 - 3K000, 09222 - 3K100), compress the spring and install the retainer locks.
After installing the valves, ensure that the retainer locks are correctly in place before releasing the valve spring compressor.
When installing the SST, use the torque, 1.2kgf.m or less.
Lightly tap the end of each valve stem two or three times with the wooden handle of a hammer to ensure proper seating of the valve and retainer lock.
Install the Mechanical lash adjusters (MLA) .
Check that the MLA rotates smoothly by hand.
All the MLAs should be installed in its original position.
