A = Connecting rod diameter classification
B = Front reference
2. Measure the connecting rod pin diameter.
The measurement must be carried out on 4 points
distanced 90° one from the other, for each con-
necting rod pin, at the points shown in the figure.
The maximum value is considered to be the meas-
urement of the connecting rod pin diameter. Nev-
ertheless, if the variation among the different
diameters measured on the pin exceeds 0.044
mm, replace the crankshaft.
3. Select the connecting rod bushing thickness or replace the crankshaft, according to the results of
points 1 and 2.
The values indicated in the figure are in millimetres.
CONNECTING ROD HEAD TYPES
Name
Description Dimensions Initials Quantity
Category 5 50.000 - 49.995 1
Category 5 49.994 - 49.989 2
Category 5 49.998 - 49.983 3
Category 5 49.982 - 49.976 4
Category 5 49.975 or less -
Category 6 50.000 - 49.995 2
Category 6 49.994 - 49.989 3
Category 6 49.998 - 49.983 4
Category 6 49.982 - 49.976 5
Category 6 49.975 or less -
Category 7 50.000 - 49.995 3
Category 7 49.994 - 49.989 4
Category 7 49.998 - 49.983 5
Category 7 49.982 - 49.976 6
Category 7 49.975 or less -
Category 8 50.000 - 49.995 4
Category 8 49.994 - 49.989 5
Category 8 49.998 - 49.983 6
Category 8 49.982 - 49.976 7
Category 8 49.975 or less -
Engine PORTER 1.3 16V
EN - 308
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