Robin EH25 Service Manual

12. SERVICE DATA
“STD” in the following table is the parts dimension from the brand new engine or the spare parts.
Whereas, “Limit” shows the maximum allowance for the parts
to be used on the engine.
If the measurement exceeds beyond the “Limit”, the part needs to be replaced and/or repaired.
12- 1 CLEARANCE DATA AND LIMITS
Unit: rnrn (in)
CYLINDER HEAD
0 Flatness
Valve seat contact width
0 Valve guide inside dia.
ITEM
IN. EX.
EH12,17
EH25
L
”
”
“
“
EH12/17/25
STD
LESS THAN
0.05
(0.002)
0.7 - 1 .o
(0.028 - 0.039)
5.500 - 5.51 8
(0.21 65 - 0.21 72)
6.600
- 6.622
(0.2598 - 0.2607)
Limit
0.1
(0.004)
2.0
(0.079)
5.65
(0.2224)
6.75
(0.2657)
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Robin EH25 Specifications

General

Brand	Robin
Model	EH25
Category	Engine
Language	English