Section 05 ENGINE (4-TEC)
Subsection 08 (CYLINDER HEAD AND VALVES)
05-08-12 SMR2003-020_05_08A.FM
Withdraw valve spring compressor, valve spring
retainer no. 25 and valve springs.
1. Valve spring retainer
2. Inner valve spring
3. Outer valve spring
Inspection
Check valve springs for rust, corrosion or other vis-
ible damages. If so, replace faulty valve springs.
Check valve springs for free length and straight-
ness.
Replace valve springs if not within specifications.
A. Valve spring length
Installation
For installation, reverse the removal procedure.
Pay attention to the following details.
Colored area of the valve spring must be placed on
top.
NOTE: Valve cotters must be properly engaged in
valve stem grooves.
1. Position of the valve spring
VALVE
Removal
Remove valve spring.
Push valve stem then pull valves no. 26 and
no. 27 out of valve guides.
1. Intake valve 38 mm
2. Exhaust valve 31 mm
OUTER VALVE SPRING FREE LENGTH
NEW NOMINAL 45.45 mm (1.789 in)
SERVICE LIMIT 43 mm (1.693 in)
INNER VALVE SPRING FREE LENGTH
NEW NOMINAL 41.02 mm (1.615 in)
SERVICE LIMIT 38.8 mm (1.499 in)
1
R1503motr105B
R1503motr106A
1
2
To Next Page
Loading...
Need help?
General