Removal Procedure
Tools Required
- J 36660-A Torque
Angle Meter
- J 41507 Connecting
Rod Assembly Guide
- Remove the cylinder head. Refer to
Cylinder Head Replacement
or
Cylinder Head Replacement
.
- Remove the oil pan. Refer to
Oil Pan Replacement
.
- Mark the piston with the number of the cylinder from which it is being
removed.
- Mark the connecting rod and the rod cap so that they can be assembled
correctly.
- Turn the crankshaft to bottom dead center.
- Clean the carbon from the top end of the cylinder.
- Remove the connecting rod bolts.
- Remove the connecting rod cap.
Notice: If there is a pronounced ridge at the top of the piston travel, the
ridge must be removed with a ridge reamer before the piston and connecting
rod assembly are removed. Applying force may break the piston rings or damage
the piston.
- Install the J 41507
on
the connecting rod.
Caution: Handle the piston carefully. Worn piston rings are sharp
and may cause bodily injury.
Important: Do not use force when removing the connecting rod and piston. Avoid
breaking the piston rings and damaging the piston.
- Remove the connecting rod and piston. Push out with a suitable tool.
Installation Procedure
- Install the piston rings to the piston. The ring gaps must be staggered
in order to provide an effective compression seal.
- Turn the crankshaft to bottom dead center.
- Lubricate the cylinder with oil.
- Install the connecting rod bearing.
- Install the J 41507
on the connecting rod.
- Align the piston and the connecting rod with the ridges toward
the front of the engine.
Notice: Guide the lower connecting rod end carefully to avoid damaging the crankshaft
journal.
- Install the piston and connecting rod using a ring compressor.
Notice: Do not scrape, shim, or file bearing inserts. If the bearing surface
of the insert is touched with bare fingers, the skin oil and acids will etch
the bearing surface.
Notice: Upper and lower inserts may be different. Do not obstruct any oil passages.
Important: Ensure that the bearing cap bolt holes and the cap mating surfaces are
clean and dry. The inserts will project slightly when put into place. Ensure
that they project an equal distance on both sides. Ensure that the insert
tangs are engaged.
- Install the bearing inserts to a clean and dry connecting rod and cap.
- Measure the rod bearing clearance. If the readings are within
limits, select a suitable set of inserts. If the readings are unsatisfactory
and available inserts will not correct the clearance, the crankshaft must
be replaced.
- Lubricate the bearing surfaces and the crankshaft journal surfaces
with clean engine oil.
- Remove the J 41507
.
Important: Carefully tap the bearing cap into place. Do not pull the cap down with
the cap bolts.
- Install the connecting rod cap.
- Install the connecting rod cap bolts.
Tighten
Tighten the bolts to 27 N·m (20 lb ft). Use
the J 36660-A
in order to
rotate the bolts an additional 50°.
- Pry the connecting rod back and forth with a suitable tool and
check for binding. If necessary, loosen and retighten the bearing cap.
- Measure the connecting rod side clearance.
- Install the oil pan. Refer to
Oil Pan Replacement
.
- Install the cylinder head. Refer to
Cylinder Head Replacement
or
Cylinder Head Replacement
.