Crankcase and cylinder head,  OM617

Facing cylinder crankcase parting surface

 

 

01—120 Facing cylinder crankcase parting surface

 

Data

 

Height of cylinder crankcase when new
242.9-242.8

 

Minimum height following required removal of material
242.5

 

in longitudinal direction
0.10

 

Permissible unevenness of parting surface

 

in transverse direction
0.05

 

Permissible roughness of upper parting surface
0.006-0.016

 

Permissible deviation in parallel of upper parting surface in relation to longitudinal direction
0.1

 

Pressure-test with air under water in bar gauge pressure
2.0

 

Chamfer of cylinder bores
refer to note

 

Note
om617 - 0034-1.jpg
Prior to facing, check piston standout. Do not exceed piston standout of 0.9 mm (03-316).
Chamfer cylinder bores after facing.
If the cylinder crankcase parting surface has been reconditioned, reset the timing (05—215).

 

01.8-120/1 F2