Hyundai HDF 50-7S, Service Manual

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INSPECTION AND REPAIR OF BASIC ENGINE
6-23
4.12 Inspecting connecting rod bearing
Inspect the connecting rod bearings. If any defect is found,
replace it with a new one.
Inspecting connecting rod bearing
4.13 Measuring connecting rod end play
(1)
Install the connecting rods onto the respective
crankpins and tighten the connecting rod cap bolts to
the specified torque.
(2)
Measure the clearance of the crank arm (end play) at
two positions (above and below the crankpin).
(3)
If the limit is exceeded, replace the connecting rod with
a new one.
Measuring connecting rod end play
4.14 Weight difference of connecting rod
assembly in one engine
When replacing a connecting rod, be sure to check the
weight rank of the connecting rod. All the connecting rods
must be of the same weight rank in an engine.
Weight difference in connecting rod assembly
Flaking
Scratches
Fusion
Item Standard Limit
Connecting rod end play
0.15 to 0.35 mm
[0.0059 to 0.0138 in.]
0.50 mm
[0.0197 in.]
54 ± 5 N·m
{5.5 ± 0.5 kgf·m}
[40 ± 3.6 lbf·ft]
Feeler gauge
Item Tolerance on weight
Weight difference of
connecting rod assembly 10 g
[0.35 oz.] or less
A
Weight rank mark
Mating mark
for assembly
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