Piston, Connecting Rod, and Bearing Installation (LDK, LHU)
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Piston, Connecting Rod, and Bearing Installation (LDK, LHU)
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Special Tools
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EN-43953
Piston Ring Compressor
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EN-43966-1
Connecting Rod Guides
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For equivalent regional tools, refer to
Special Tools (LDK, LHU)
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1.
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Install the NEW connecting rod bearings.
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1.1.
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Install the bearing inserts into the connecting rod and the connecting rod cap.
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1.2.
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Lubricate the connecting rod bearings with engine oil.
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2.
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Install the
EN-43966-1
guides (1) into the connecting rod bolt holes. This protects the crankshaft journal during piston and connecting rod installation.
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3.
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Install the
EN-43953
compressor , the piston (2), and the connecting rod to the correct bore.
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3.1.
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Stagger each piston ring end gap equally around the piston.
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3.2.
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Lubricate the piston and the piston rings with engine oil.
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3.3.
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Do not disturb the piston ring end gap location.
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3.4.
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The piston must be installed so that the mark on the top of the piston faces the front of the engine.
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3.5.
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Place the piston in its matching bore.
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3.6.
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Tap the piston into its bore with a hammer handle. Guide the connecting rod to the connecting rod journal while tapping the piston into place.
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3.7.
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Hold the
EN-43953
compressor against the engine block until all the rings have entered the cylinder bore.
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3.8.
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Remove the connecting rod guides from the connecting rod bolt holes.
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4.
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Note
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Ensure that the connecting rod cap is properly oriented on the connecting rod.
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Install the connecting rod cap (1).
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5.
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Refer to
Fastener Caution
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Note
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Always use NEW bolts.
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Install NEW connecting rod bolts and tighten to
25 Nm (18 lb ft)
plus
100 degrees
using the
EN-45059
angle meter .
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6.
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Install the remaining connecting rods and piston assemblies.
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7.
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Measure the connecting rod side clearance with a feeler gauge (1).
The correct clearance is 0.07-0.37 mm (0.0027-0.0145 in).
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