Standard Repair Tables; Standard Dimensions And Limits Of Use - Subaru ER12 Service Manual

15. STANDARD REPAIR TABLES

"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 .

15-1 STANDARD DIMENSIONS AND LIMITS OF USE

CYLINDER HEAD
* Flatness
* Intake/exhaust valve seat
contact width
* Intake/exhaust valve guide inner diameter
* Rocker arm pin outer diameter
* Rocker arm pin support inner diameter
ITEM
D D
1 2
Pin outer diameter
D D
3 4
Support inner diameter
Intake
Exhaust (0 .0276 - 0 .0394)
Intake 5 .500 - 5 .518
Exhaust (0 .2165 - 0 .2172)
5 .970 - 5 .980
D1, D2 (0 .2350 - 0 .2354)
D3, D4 (0 .236 - 0 .237)
- 68 -
STD
0 .05
(0 .002)
0 .7 - 1 .0
6 .00 - 6 .018
Unit: mm (in .)
Limit
0 .1
(0 .004)
-
-
5 .9
(0 .232)
6 .05
(0 .238)