Service manual

G420F(FE) Service Manual Chapter 3. Engine Mechanical System 67
Disassembly
1. Using the 8mm and 10mm hexagon wrench,
tighten the cylinder head bolts in order by
tightening 2-3 times as shown in the illustration.
• Take care not to come the cylinder head gasket
debris into the cylinder.
2. Using the special tool “valve spring compressor
(09222-28000, 09222-28100)”, remove the
retainer lock.
And then, remove the spring retainer, valve spring,
spring seat and valve.
NOTE: Arrange parts in order disassembling not to
make a mistake while reassembling.
3. Remove the stem seal with pliers.
NOTE: Do not reuse the stem seal.