Inspect flatness of crankcase separating surface

AR01.40-B-9133-01A

Inspect flatness of crankcase separating surface

Engine 904.9, 906.9, 924.9, 926.9

Engine

904, 906, 924, 926 in model 368, 382, 384, 634, 685.282/284/288/290, 979.2

Engine

904, 906, 924, 926 in model 693

Engine block test values

Number

Designation

Engine 904.9, 906.9

Engine 924.9, 926.9

BE01.40-B-1013-02C

Maximum admissible deviation of the flatness at the engine block surface

On the total length

mm

0,030

0,030

on a 150 mm length

mm

0,015

0,015

1

Check flatness of the upper side of the engine block (1) both lengthwise and crosswise with the precision ruler (2).

 Verify if there is a chink of light between the precision ruler (2) and the engine block (1).

2

In case of deformation, check the maximum allowable deviation using a feeler gauge.