Mitsubishi 4G1 series, General Information Manual, Page: 114 / 147

4G1 ENGINE (E-W) -
Cylinder Head and Valves
11A-9-11
PWEE9520
E
Nov. 1995 Mitsubishi Motors Corporation
" D A CYLINDER HEAD BOLT INSTALLATION
(1) Before reusing the cylinder head bolt, check that its nominal
length does not exceed the specified limit. Replace the
bolt if this measurement exceeds the limit.
Limit: 103.2 mm
(2) Apply engine oil to the bolt’s thread and washer.
(3) Tighten the bolts in the sequence shown until each is
torqued to 49 Nm.
(4) Completely loosen the bolts.
(5) Retighten the bolts in the sequence shown until each is
torqued to 20 Nm.
(6) Apply paint marks to the cylinder head bolt heads and
cylinder head as shown.
(7) In accordance with the tightening sequence, tighten each
bolt by 90 _ .
(8) Tighten each bolt by a further 90 _ and check that the
paint marks on the bolt head and cylinder head are aligned.
Caution
If the bolts are tightened by an angle of less than
90 _ , they may not hold the cylinder head with sufficient
strength.
If the bolts are tightened by an angle exceeding 90 _ ,
completely remove them and carry out the installation
procedure again.
" E A VALVE STEM SEAL INSTALLATION
(1) Install the valve spring seat.
(2) Install the valve.
(3) Apply a small amount of engine oil to the valve stem
seal.
(4) Using the valve stem as a guide, install the valve stem
seal to the valve guide with the special tool.
Caution
Improper installation of the valve stem seal will cause
oil to work down. Use the special tool to install the
valve stem seal.
NOTE
The valve stem seal differs between the intake and exhaust
sides.
Shank length
PWEE9520-D
E
Aug. 2000 Mitsubishi Motors Corporation Added
Timing belt side
1 3 8 6 9
2 5 10 4 7
90 _
Paint mark
90 _
MD998601
Valve
Valve stem seal
Valve guide
Valve spring seat
Intake side
Body color: Gray
Embossed identification
symbol: None
Exhaust side
Body color: Grayish green
Embossed identification
symbol: SD