CYLINDER BLOCK
14-8
PISTON SKIRT O.D.
Measure and record the piston O.D. at a point 10 mm
(0.4 in) from the bottom of the skirt and 90 degrees to
the piston pin bore.
If the measurement is less than the service limit,
replace the piston (page 14-6).
Inspect the cylinder sleeve I.D. (page 14-7) with this
inspection.
PISTON-TO-CYLINDER CLEARANCE
Subtract the piston skirt O.D. from the cylinder sleeve
I.D. to obtain the piston-to-cylinder clearance.
If the calculated clearance is more than the service
limit, replace the piston (page 14-6) and recheck the
clearance.
If the clearance is still more than the service limit with
the new piston, replace the cylinder barrel (page 14-4).
PISTON PIN BORE I.D.
Measure and record the piston pin bore I.D. of the
piston.
If the measurement is less than the service limit,
replace the piston (page 14-6).
Inspect the piston pin O.D. (page 14-9) with this
inspection.
EG3600CX/EG4000CX:
STANDARD: 76.965 – 76.985 mm
(3.0301 – 3.0309 in)
SERVICE LIMIT: 76.85 mm (3.026 in)
EG4500CX/EG5000CX:
STANDARD: 81.965 – 81.985 mm
(3.2270 – 3.2277 in)
SERVICE LIMIT: 81.85 mm (3.222 in)
EG5500CX/EG6500CX/EG5500CXS/EG6500CXS:
STANDARD: 87.965 – 87.985 mm
(3.4632 – 3.4640 in)
SERVICE LIMIT: 87.85 mm (3.459 in)
90°
10 mm
(0.4 in)
STANDARD: 0.015 – 0.052 mm
(0.0006 – 0.0020 in)
SERVICE LIMIT: 0.12 mm (0.005 in)
EG3600CX/EG4000CX:
STANDARD: 18.002 – 18.008 mm
(0.7087 – 0.7090 in)
SERVICE LIMIT: 18.042 mm (0.7103 in)
Except EG3600CX/EG4000CX:
STANDARD: 20.002 – 20.008 mm
(0.7875 – 0.7877 in)
SERVICE LIMIT: 20.042 mm (0.7891 in)
82Z30000.book 8 ページ ２０１０年６月２５日 金曜日 午後５時５０分
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