Subaru Robin EX30 - Manual (Page 68)

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"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.
16-1 STANDARD DIMENSIONS AND LIMITS OF USE
16. STANDARD REPAIR TABLES
ITEM STD Limit
CYLINDER HEAD
* Flatness
* Intake/exhaust valve seat contact width
* Intake/exhaust valve guide inner diameter
0.05
(0.002)
0.1
(0.004)
Intake
Exhaust.
0.7 - 1.0
(0.0276 - 0.0394)
-
Intake
Exhaust.
5.500 - 5.518
(0.2165 - 0.2172)
-
* Rocker arm pin outer diameter
* Rocker arm pin support inner diameter
Pin outer
diameter
D
1
, D
2
5.970 - 5.980
(0.235 - 0.235)
5.9
(0.232)
Support
inner
diameter
D
3
, D 4
6.00 - 6.018
(0.236 - 0.237)
6.05
(0.238)
D 1 D 2
D 3 D 4
Unit: mm (in.)