Mercedes-Benz:: S-class W140:: Service of the block of cylinders

4.4.16. Service of the block of cylinders

Points of measurement of the sizes of cylinders


A — the Longitudinal direction B — the Cross direction and — the Top point of the course of the top compression ring	b — the Lower dead point with — the Lower point of the course of an oil scraper ring 1, 2, 3 — Points of measurements

Processing of the interfaced surfaces of the block of a tsilindrov and a point of measurement

The sizes of cylinders and pistons are specified in Specifications. Pay attention also to the following parameters:

Admissible wear in the prodrlny and cross directions 0.10 mm

Admissible ovality New 0.007 mm

Admissible 0.05 mm

Admissible roughness of RZ after a honingovaniye 0.003 — 0.006 mm

Admissible sinuosity of Wt 50% of a roughness

Honingovaniye corner 50 ± 10

The sizes for processing of the interfaced surfaces of the block of cylinders are specified in Specifications.

Admissible wear in the prodrlny and cross directions	0.10 mm
Admissible ovality	New 0.007 mm
Admissible ovality	Admissible 0.05 mm
Admissible roughness of RZ after a honingovaniye	0.003 — 0.006 mm
Admissible sinuosity of Wt	50% of a roughness
Honingovaniye corner	50 ± 10