Machine crankcase contact surface - AR01.40-P-9133B
ENGINES 604, 605, 606 /
Crankcase
| Machining | |||
| Only machine cylinder head contact surface if cylinder liners have been inserted, porous or damaged points are present or if an impermissible variation of the evenness in the longitudinal direction is measured. The stock removal at the cylinder head and at the crankcase must together be no more than 0.5 mm. |
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| 1 | Remove pistons | AR03.10-P-7021B | |
| Measure piston projection After machining contact surface of crankcase, install a repair cylinder head gasket (1.85 mm thick, uncompressed, for engine 604 soft gasket, for engines 605, 606 metal-ply gasket). |
AR03.10-P-7041-01A | ||
| 2 | Check crankcase contact surface in longitudinal direction for evenness | *BE01.40-P-1005-02B | |
| *WE58.40-Z-1001-19A | |||
| 3 | Machine contact surface of crankcase together with timing case cover | *BE01.40-P-1002-02B | |
| *BE01.40-P-1005-02B | |||
| 4 | Chamfer cylinder bores | AR01.40-P-9201-01B *BE01.40-P-1006-02B |
Test values for crankcase
| Number | Designation | Engine 604.910/912 | ||
|---|---|---|---|---|
| BE01.40-P-1002-02B | Height of crankcase from center of basic bearing bore (H) | When new | mm | 234.97...235.03 |
| After machining | mm | ≥234.60 | ||
| See picture | - | |||
| BE01.40-P-1005-02B | Crankcase | Peak-to-valley height (RZ ) of top contact surface | mm | 0.012 |
| Wave depth (Wt ) of top contact surface | mm | 0.009...0.012 | ||
| Unevenness of contact surface in longitudinal direction | mm | 0.03 | ||
| Unevenness of contact surface in transverse direction | mm | 0.03 | ||
| Variation of parallelism of top contact surface to bottom in longitudinal direction | mm | 0.05 | ||
| BE01.40-P-1006-02B | Chamfer of cylinder bore at contact surface of crankcase | mm | 0.6 (± 0.4)x75° | |
Test values for crankcase
| Number | Designation | Engine 604.915/917, 605.91/96, 606.91/96 | ||
|---|---|---|---|---|
| BE01.40-P-1002-02B | Height of crankcase from center of basic bearing bore (H) | when new | mm | 234.97...235.03 |
| after machining | mm | ≥234.60 | ||
| See picture in | - | |||
| BE01.40-P-1005-02B | Crankcase | Peak-to-valley height (RZ ) of top contact surface | mm | 0.012 |
| Wave depth (Wt ) of top contact surface | mm | 0.009...0.012 | ||
| Unevenness of contact surface in longitudinal direction | mm | 0.03 | ||
| Unevenness of contact surface in transverse direction | mm | 0.03 | ||
| Variation of parallelism of top contact surface to bottom in longitudinal direction | mm | 0.05 | ||
| BE01.40-P-1006-02B | Chamfer of cylinder bore at contact surface of crankcase | mm | 0.6 (± 0.4)x75° | |
Workshop equipment
| WE58.40-Z-1001-19A | Straightedge |