Robin EY23 User Manual

13. CORRECTION TABLE
7
CORRECTION
METHOD
t
ITEM
Flatness of cylinder
head
ENGINE
MODEL
CORRECT1
STANDARD
TOLERANCE
SIZE
N
LIMIT
USE
"IT
REMARKS
TOOL
surface
,late,
'eeler
0.1
5 Correct
EY25-2
EY27-2
M.018
EY 18-3
EY23
EY25-2
EY27-2
EY14
EY23
EY18-3
EY27-2
EY25-2
65 dia.
68 dia.
72 dia.
74 dia.
4.0.01 9
0
0.01
Bore
0.1
5
1.15
Roundness
Boring
EY14
EY18-3
EY23 0.01 5
EY25-2
EY27-2
EY14
EY 23
EY18-3
EY25-2
EY27-2
1.2-
1.5
EY14 N.015 6 dia.
EY18-3
EY23
EY25-2
EY27-2
7 dia. +0.036-+0.016
S.T.D. 61.963 dia.
EY14
C 62.463
dia.
B 62.213dia.
Cylindricity
Valve seat contact
width
Correct
2.5
0.1 5
0.15
9t middle
>onion
Valve guide
I.D.
Replace
0.2 0.2
I
I S.T.D. 64.980 dia.
EY18-3
I B 64.230 dia.
~~ ~~
1 C 65.480 dia. I
O.D. at skirt, in
thrust direction
(over
size)
EY23
S.T.D. 67.970 dia.
B 68.220dia.
C
68.470 dia.
-0.02
Micro-
meter
Vernier
calipers
"0.1
Replace
-0.1
0.15
0.035
EY25-2 1 B 72.19dia.
I S.T.3.71.94 dia.
C 72.44 dia.
S.T.D. 73.928
dia.
EY27-2 1 0 74.178dia.
EY25-2
y:p l:: 1
EY23 2nd 2.0
+O .02 5
0
Width of ring
groove
0.15
Replace
EY18-3 Oil
+0.035
0
I oil 2.8 I
I
Top 2.0
EY27-2 2nd 2.0
I Oil 4.0
EY14
EY18-3
, 14 dia.
P.," +0.002
Cylinde
gauge
Piston pin hole 0.035
Replace
--.-"I -0.009
EY25-2
EY27-7
16dia.
I
- " -
I
EY14
I 0.037L-0.075L
Max. cylin-
der dia. and
piston dia.
at skirt in
thrust direc-
tion
EY18-3 EY23 I
I
0.030L-0.069L
Cylinde
Micro-
meter
gauge, Clearance between
piston and cylinde
0.025
0.025
Replace
EY25-2
0.072L-0.111
L
EY27-2
0 06 L- 0.099 L
-42 -

Robin EY23 Specifications

General

Brand	Robin
Model	EY23
Category	Engine
Language	English