Hino S5-LJ05E04A Workshop Manual page 368

10–92
TAKE MEASUREMENT
IN THE CENTER
ENGINE MECHANICAL (J05E)
6. INSPECTING THE PISTON PIN AND CONNECTING ROD
BUSH
(1) Use the micrometer to measure the outer diameter of the piston
pin center. If a measurement reading exceeds the permissible
limit, replace the piston pin.
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(2) Use the cylinder gauge to measure the inner diameter of the con-
necting rod bush. If a measurement reading exceeds the permis-
sible limit, replace the bush.
(3) Calculate the gap between the outer diameter of the piston pin
center and the inner diameter of the connecting rod bush. If a cal-
culated value exceeds the permissible limit, replace the connect-
ing rod bush.
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7. INSPECTING THE CONNECTING ROD
(1) Use the dye penetrant testing (red check) to inspect the connect-
ing rod for crack and damage. If found defective, replace the con-
necting rod.
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(2) Insert the bar of 4 mm {0.1575 in.} in diameter into an oil hole in
the large end of the connecting rod and check if the bar goes
through the oil hole to the small end. If clogging in the oil hole pre-
vents the bar of 4 mm {0.1575 in.} in diameter from going through,
replace the connecting rod.
! CAUTION
Clogging in the oil hole may cause insufficient oiling, resulting in
seizure.
(3) Insert the new piston pin to check for unsmoothness or backlash.
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Standard value (mm {in.})
37 {1.457}
Standard value (mm {in.})
37 {1.457}
Standard value (mm {in.})
0.035-0.056
{0.0014-0.0022}
Permissible limit
(mm {in.})
36.96 {1.455}
Permissible limit
(mm {in.})
37.1 {1.461}
Permissible limit
(mm {in.})
0.08 {0.0032}