13．Engine Overhaul Information
Overhaul Data
Item Standard Service Limit Remark
IN 30.6 Valve Head Diameter
EX 27.0
-----------
IN 0.05-0.10
Valve Clearance
EX 0.010-0.037
------------
IN 0.010-0.037 Clearance Between Valve
Guide and Valve Stem
EX 0.030-0.057
------------
Inner Diameter of Valve
Guide
IN & EX 5.000-5.012 -------------
IN 4.975-4.990 -------------
Outer Diameter of Valve Stem
EX 4.955-4.970 -------------
Valve Stem Play IN & EX ------------- 0.05
Length of Valve Stem End IN & EX 2.9-3.1 2.3
Valve Head Thickness IN & EX ------------- 0.5
Play of Valve Head Seal IN & EX ------------ 0.03
Width of Valve Seat Seal IN & EX 0.9-1.1 -------------
Valve Spring Free Length IN & EX 40 38.8
Valve Spring Tension IN & EX
182-210N,(when
compressed to
31.5mm)
--------------
IN 33.430-33.490 33.130
Cam Height
EX 33.500-33.560 33.200
Φ22 0.032-0.066 0.150 Clearance Between
Camshaft Outer Diameter &
Hole
Φ17.5 0.028-0.059
0.150
Φ22 21.959-21.980 ---------------
Camshaft Outer Diameter
Φ17.5 17.466-17.484 ---------------
Φ22 22.012-22.025 ---------------- Inner Diameter of Camshaft
Hole
Φ17.5 17.512-17.525 ----------------
Camshaft Play 0.10
Inner Diameter of Rocker Arm IN & EX 12.000-12.018 ----------------
Outer Diameter of Rocker
Arm
IN & EX 11.973-11.984 ----------------
Cylinder Head Distortion 0.03 0.05
Cylinder Head Cover
Distortion
0.03 0.05
13-6
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