Connecting Rods, Weight Classes - Valtra 6000 Workshop Manual

21. Engine
3. Check that the connecting rod is not twisted by positioning
the measuring tool with the horizontally placed measuring
points against the face of the fixture.
4. Turn the measuring tool round with the vertically placed
measuring points against the face, and check the straight-
ness of the connecting rod
1. 9. 1992
5. Also check the S ---bending of the connecting rod by using
sliding calipers to measure the distance between the edge of
the small---end bearing bushing and the face of the fixture.
turn the connecting rod round so that the other side of the con-
necting rod faces the fixture. Then measure the same dis-
tance. The accepted deviation is 0,6 mm.
6. Measure the length of the connecting rod bolts. The length
should be max 86,50 mm. If the bolt is longer, change it with
a new one. It is recommended that the bolts are always
changed when they are unscrewed.
D. Connecting rod weight classes
The connecting rods are divided into weight classes with in-
tervals of 20 g. The weight class (a letter) is stamped on the
side face of the connecting rod. All the connecting rods in one
engine should be of the same weight class, that is to say the
greatest permissible weight difference is 20 g.
60
Model Code
6000-- 8750
213
max 86,50
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