Robin EC12 User Manual

14-1 CORRECTION TABLE
Uuit : rnm (in)
CORRECTION
ITEM STANDARD SIZE
TOLERANCE
LIMIT
Flatness of cylinder head
I
Less Than
0.1 (0.004)
I 0.2 (0.008)
~
STD 454 (21260)
~
0.S 654.25 (21358)
0.S 454.50 (21457)
~ Roundness
’ (After rebored)
Cylindricity (After rebored)
STD 453.96 (2.1244)
Outside diameter
0.S 454.21 (2.1343)
0.S 454.46 (21441)
0
454.1 5 (2.1 31 9)
)
. 454.40 (21417)
454.65 (2151
6)
0
0
0.01 (0.0004)
0.01 5 (0.0006)
453.86 (21
205)
454.1 1 (2.1 303)
454.36 (2.1402)
I Piston in hole
r- 612 (0.4724)
~
1 ( ) 1 +11.965(0.4711)
- 0.01 1 -0.004
TOP 1.59 (0.063) +0.02 f+0.0008
I (MAX. WIDTH OF KEYSTONE) I 0 (0
) I 1.44 (0.057)
U
Width of ring groove
SECOND
+ 0.04
1.5 (0.059) +0.06 (+;:::: )
1.35 (0,053)
I
Clearance between piston
ring
and piston groove I
TOP. SECOND
0.05 - 0.1
I (0.0002 - 0.004)
I 0.15 (0.0006)
I
Clearance between piston
and cylinder 1
~~ ~ ~~~ ~~ ~ ~ ~~~~~
0.040 - 0.074
(0.0002 - 0.004)
I 0.25 (0.0098)
I
Frt between piston and
piston pin
I
~~ ~ ~~___~_____
0.008 0.0003 L
( ) ~1 (0.0024) L 1 0.008 0.0003 T
0.06 L
0.1 - 0.25
I (0.0039 - 0.0098)
I 1.5 (0.059)
B
cn Ring width
(0.059)
ii
7.5
-0.1 (0.0039)
Piston pin O.D.
I
4 12 (0.472)
I -0-003 (4.0001 ) I 611.97 (0.471)
- 0.008 -0.0003
large end I.D.
424 (0.945)
V
0
0.055 (0.002)
2s
jS?
2 E
large end I.D. and crank
3Z
Clearance between rod
pin needle bearing
(0.0002 - 0.0009)
0.004 - 0,022
OS
-
Small end I.D.
4 16.02 (0.631 )
+0.011 (;0004 )
4 16 (0.630)
0
- 58 -

Robin EC12 Specifications

General

Brand	Robin
Model	EC12
Category	Engine
Language	English