Engine block test values |
Number | Designation | Engine 924.9, 926.9 | ||
BE01.40-B-1006-02C | Height (A) of the block, measured between the main bearings (upper shell seat) and the block's top face | Normal | mm | 298,33...298,40 |
Repair I (- 0,3) | mm | 298,03...298,10 | ||
Repair II (- 0,6) | mm | 297,73...297,80 | ||
Repair III (- 0,9) | mm | 297,43...297,50 |
Test values for the piston |
Number | Designation | Engine 924.9, 926.9 except for Code MS5 | Engine 924.9, 926.9 with Code MS5 | ||
BE03.10-B-1002-02D | Piston compression height (C) | standard | mm | 61,36...61,40 | 61,36...61,40 |
repair stage I (-0.3) | mm | 61,06...61,10 | 61,06...61,10 | ||
repair stage II (-0.6) | mm | 60,76...60,80 | 60,76...60,80 | ||
repair stage III (-0.9) | mm | - | - |
W03.10-1116-09
1 | Piston | D | Identification of tolerance groups | |
2 | Crankcase | E | Piston assembly direction | |
A | Crankcase height | KH | Compression height | |
B | Cylinder bore inner diameter | Setas | Marking face | |
C | Piston diameter |
Tolerance group identification on the piston
Assign piston (1) with the corresponding piston diameter (C) and compression height (KH) of the respective cylinder inner bore (B) or crankcase height (A).
Observe identification on marking surfaces (arrows) in the crankcase (2).
Piston diameter (C) Cylinder inner diameter (B)
BA A or B.
BC B or C.
In the next higher discrepancy of the piston diameter (C) or the cylinder inner diameter (B) the compression height (KH) in the piston (1) and the crankcase height (A) is correspondingly reduced.