Service manual

G420F(FE) Service Manual Chapter 3. Engine Mechanical System 72
ASSEMBLY
CAUTION
Prior to assembly, clean each component.
Apply a new engine oil to the perturbation part
and rotation part.
Replace a new oil seal.
VALVE
1. After installing the spring seat, insert the stem
seal to the valve guide.
Install the stem seal by tapping on it with the
special tool valve stem oil seal installer (09222-
22001)
Wrong installation of the seal can affect oil leak
from the valve guide, so use the special tool to
install it to exact position and take care not to twist
it. Do not reuse it.
2. After applying engine oil to each valve, insert the
valve into the valve guide.
3. Install the spring and spring retainer. Face the
enamel-plated side toward the valve spring
retainer side.
4. Taking care not to press the valve stem seal
down to the retainer bottom, press-fit the spring
with the special tool valve spring compressor
(09222-28000, 09222-28100)and put the retainer
lock in.
Remove spring compressor after pisition retainer
lock exactly.
5. Hit the end of valve two or three times by rubber
malet, so that valve and retainer lock is in position.
6. Assembly the HLA using by hand.