Robin America EH12-2, EH17-2, EH25-2 Service Manual page 72

Unit: mrn (in)
ITEM
TAPPET
Stem outside dia.
Guide inside dia.
8
0
Tappet guide clearance
VALVE SPRING FREE LENGTH
~~ ~ ~~~
I
ITEM
VALVE SEAT ANGLE(IN. EX.)
0
Valve cutter angle(a)
0
Valve contact width(b)
a
EH25-2
STD
Limit
7.960
-
7.975
(0.31 34
-
0.31 40)
8.000
-
8.01
5
(0.31 50
-
0 . 3 1 56)
0.025
-
0.055
(0.001 0
-
0.0022)
35.5
(1.4)
1
~
Unit: rnm (in
EH12-2 11 7-2
125-2
STD limit
a : 90"
b : 0.7
-
1 .O
(0.028
-
0.039)
2 . 0
(0.079)
-
69 -