Robin EY40 User Manual

12. TABLES OF CORRECTION STANDARDS
T
T
-
USE
LIMIT
TOOL
CORRECTION
CORRECTION
METHOD
ENGINE
MODEL
EY35
EY40
EY35
EY40
EY35
EY40
EY 35
EY40
EY35
EY40
EY 35
EY40
EY35
EY40
EY35
EY40
EY35
EY40
EY35
EY40
EY35
EY40
EY35
EY40
EY35
EY40
EY35
EY40
STANDARD
SIZE
ITEM
REMARKS
TOLERANCE LIMIT
Surface
plate,
Feeler
Flatness
of cylinder
head
Bore
Roundness
Cylindricity
Valve seat contact
width
Valve guide
I.D.
O.D. at skirt, in
thrust direction
(incl. over size)
B 0.25
C 0.5
Width
of ring
groove
Piston pin hole
Clearance between
piston and cylinder
Clearance between
pisition ring and
ring groove
Fit between piston
and piston pin
Ring gap
Ring width
0.05
0.1 5
Correct
Dif. between
max.
& min.
+0.019 0
S.T.D. 78 dia.
84 dia.
0.1
5 0.65
0.01
Boring
0.01
5
-
2.5
1.2-1.5
Correct
Replace
+0.036
0
At middle
portion
8 dia.
0.1
5 0.1 5
-0.1
0.1
5
S.T.D. 77.951 dia.
B 78.201 dia.
C 73.451 dia.
S.T.D.83.951 dia.
B 84.201 dia.
C 84.451 dia.
Top, 2nd 2
0
-0.04
Micro-
meter
- 0.1
-
0.1 5
Replace
Top
+0.04
+0.06 -
oil +0.055 -
+0.2
Vernier
caliwrs
Replace
Oil
4
+0.002
-0.01 1
20 dia.
0.035
0.035
0.048 -
0.108
Cylinder
gauge,
Micro-
meter
Max. cylin-
der dia. and
piston dia.
at skert in
thrust direc-
tion
Replace
0.025
0.025
0.048
-
0.1 11
Top
0.05
-
2nd 0.09
0.1 5 0.1 5
Replace
Cylinder
Micro-
meter
gauge,
0.011
T
0.011 L
TOP
2nd
0.1 - 0.3
1.5
-
- 0.1
-
Replace
1.5
-0.1
Oil
0.2 - 0.9
Top.2nd 2
Oil 4
TOP -0.01
2nd
-0.03
Mircro-
meter
- 38 -

Robin EY40 Specifications

General

Brand	Robin
Model	EY40
Category	Engine
Language	English