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Fig. 131: Installing Piston And Connecting Rod Assembly
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
>>F<< CONNECTING ROD CAP INSTALLATION 1. Verifying the mark made during disassembly, install the bearing cap to the
connecting rod. If the connecting rod is new with no index mark, make sure
that the bearin
g lockin
g notches are on the same side as shown.
2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Overhaul - Endeavor
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Fig. 132: Installing Connecting Rod Cap
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Make sure that the connecting rod big end side clearance meets the
specification.
Standard value: 0.10 - 0.25 mm (0.004 - 0.009 inch)
Limit: 0.4 mm (0.02 inch)
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Fig. 133: Checking Connecting Rod Big End Size
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
>>G<< CONNECTING ROD CAP NUT INSTALLATION 1. The connecting rod bolts should be examined before reuse. If the bolt threads
are damaged, the bolt should be replaced. Hand-thread the nut to the full length
of the bolt threads. If the nut does not run down smoothly, the bolt should be
replaced.
2. Before installation of each nut, apply engine oil to the threaded portion and
bearing surface of the nut.
3. Loosely tighten each nut to the bolt.
4. Then tighten the nuts alternately to a torque of 27+/-2 N.m (20+/-1 ft-lb) to
install the cap properly.
5. Make a
paint mark on the head of each nut.
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6. Make a paint mark on the bolt end at a position 90 to 94 degrees from the paint
mark made on the nut in the direction of tightening the nut.
7. Turn the nut another 90 to 94 degrees and make sure that the paint marks on
the nut and bolt are aligned.
CAUTION:
If the nut is turned less than 90 degrees,
proper fastening performance may not be
achieved. Be careful to tighten the nut
exactly 90 degrees. If the nut is overtightened (exceeding 94
degrees), loosen the nut completely and then
retighten it by repeating the tightening
procedure from step 3.
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Fig. 134: Installing Connecting Rod Cap Nu
t
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
INSPECTION PISTON Replace the piston if scratches or seizure is evident on its surfaces (especially the
thrust surface). Replace the piston if it is cracked. PISTON PIN 1. Insert the piston pin into the piston pin hole with a thumb. You should feel a
slight resistance. Replace the piston pin if it can be easily inserted or there is
excessive play.
2. The piston and piston pin must be replaced as an assembly. PISTON RING 1. Check the piston ring for damage, excessive wear, and breakage. Replace if
defects are evident. If the piston has been replaced with a new one, the piston
rings must also be replaced with new ones.
2. Check for clearance between the piston ring and ring groove. If the limit is
exceeded, replace the ring or piston, or both.
Standard Value:
Number 1: 0.03 - 0.07 mm (0.0012 - 0.0027 inch)
Number 2: 0.02 - 0.06 mm (0.0008 - 0.0023 inch)
Limit: 0.1 mm (0.003 inch)
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Fig. 135: Checking Piston Pin For Damage
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
3. Insert the piston ring into the cylinder bore. Force the ring down with a piston,
the piston crown being in contact with the ring, to correctly position it at right
angles to the cylinder wall. Then, measure the end gap with a feeler gauge.
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If the ring gap is excessive, replace the piston ring.
Standard value:
Number 1: 0.25 - 0.40 mm (0.010 - 0.016 inch)
Number 2: 0.35 - 0.50 mm (0.014 - 0.020 inch)
Oil: 0.10 - 0.35 mm (0.004 - 0.014 inch)
Limit:
Number 1, Number 2: 0.8 mm (0.03 inch)
Oil: 1.0 mm (0.03 inch)
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Fig. 136: Measuring End Gap
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CRANKSHAFT PIN OIL CLEARANCE < PLASTIC GAUGING MATERIAL METHOD > The crankshaft oil clearance can be measured easily by using plastic gauging
material, as follows:
2004 Mitsubishi Endeavor Limited 2004 ENGINE Engine Overhaul - Endeavor