Yanmar 4JH4E - Page 271

7. Intake and exhaust system
251
4) Service standards
(Unit: mm)
Check item Usable limit Remarks
Turbine shaft Outside diameter (A) of turbine shaft journal
Seal ring groove width (E) on turbine side
Seal ring groove width (G1) on compressor side
Seal ring groove width (G2) on compressor side
Turbine shaft run-out
7.98
1.29
1.31
1.11
0.011
-
Bearing Floating bearing inside diameter (C)
Floating bearing outside diameter (D)
Bearing case inside diameter (B)
8.04
12.31
12.42
-
Thrust bearing Thrust bearing width (J)
Distance (K) between thrust bearing grooves
3.98
4.07
-
Seal ring
inserting
area
Turbine side (bearing housing) (F)
Compressor side (seal plate) (H1)
Compressor side (seal plate) (H2)
15.05
12.45
10.05
-
End play in the turbine shaft 0.09 Standard 0.03 to 0.06
Radial play in the turbine shaft 0.17 Standard 0.08 to 0.13
ABCD
E
F
G1
H1
G2
H2
J
K
010676-00X