Workshop Manual

0312 1570 - 0138

4/8

Drive system

W 02-09-03

2011

Only in FL, FM engines

Determine piston class

Note

If the crankshaft and/or the crankcase are

replaced, the piston class must be

redetermined for every single cylinder.

z Place lifting bearing journal of the respective cylinder

in the upper dead point (UT).

z Measure the distance with the depth measuring

appliance, from the cylinder head sealing surface to

the highest point of the lifting bearing journal in UT

position.

Note

The sealing surface must be clean.

z Read and note measured value.

z Select piston class (1) per cylinder.

Note

In undermeasure steps of the crankshaft 0.125

must be added to the values in the technical

data.

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