6-31
Chapter 6 INSPECTION AND REPAIR OF BASIC ENGINE
5.15 Thickness of Thrust Plate - Measure
Measure the thickness of thrust plate.
If the value exceeds the limit, replace the thrust plate with a
new one.When the crankshaft is re-ground due to wear, use
the oversize thrust plate.
For the crankshaft grinding procedure, refer to "Rearmost
Crank Journal Width - Grind" of "INSPECTION AND
REPAIR OF BASIC ENGINE."
Note:(a) Replacement thrust plates are available in three
oversizes of 0.25, 0.50, 0.75 mm [0.0098, 0.0197,
0.0295 in.]
(b) Because the oversize thrust plate can be used in
only one side (a set of upper and lower), the end
play can be adjusted with a minimum crankshaft
grinding.
Thickness of Thrust Plate - Measure
5.16 Piston Cooling Nozzle - Inspect
Inspect the piston cooling nozzle.
If there is any defect such as valve malfunction and oil hole
clogging, replace the piston cooling nozzle with a new one.
Piston Cooling Nozzle - Inspect
Item Size
Nominal
value
Standard value Limit value
Thickness of thrust plate
Standard
5.00 mm
[0.1969 in.]
4.83 to 4.90 mm
[0.1902 to 0.1929 in.]
4.76 mm
[0.1874 in.]
Over size
0.25 mm
[0.0098 in.]
5.25 mm
[0.2067 in.]
5.08 to 5.15 mm
[0.2000 to 0.2028 in.]
5.01 mm
[0.1972 in.]
0.50 mm
[0.0197 in.]
5.50 mm
[0.2165 in.]
5.33 to 5.40 mm
[0.2098 to 0.2126 in.]
5.26 mm
[0.2071in.]
0.75 mm
[0.0295 in.]
5.75 mm
[0.2264 in.]
5.58 to 5.65 mm
[0.2197 to 0.2224 in.]
5.51 mm
[0.2169 in.]
If oil jet pipe of piston cooling nozzle is bent or
deformed, it will reduce the cooling performance, and
can lead to piston seizure.
Item Standard value
Valve opening pressure of piston
cooling nozzle
0.26 to 0.32 MPa
{2.7 to 3.3 kgf/cm
2
}
[38 to 47 psi]
Spray hole
Valve
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