Volvo Penta AQ125A, Руководство по ремонту

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65. Measure the cylinder liners with a special dial in-
dicator. The measurement for greatest wear is
carried out immediately below top dead centre
and transverse to the engine. The measurement
for minimum wear is carried out at bottom dead
centre.
Standard cylinder diameter. AQ145
(C-marked): 96.00–96.01 mm (3.7795–3.7799 in.)
(D-marked). 96.01–96.02 mm (3.7799–3.7503 in.)
(E-marked): 96.02–96.03 mm (3.7803–3.7807 in.)
Oversize I
:
96.300 mm (3.7973 in.)
II: 96.600 mm (3.8031 in.)
Standard cylinder diameter. AQ125
(D-marked): 92.01–92.02 mm (3.6224–3.6228 in.)
(G-marked): 92.03–92.04 mm (3.6232–3.6236 in.)
Oversize I:
92.500 mm (3.6417 in.)
II: 93.000 mm (3.6614 in.)
Classification marking
66. Each cylinder liner has a letter which indicates its
and pistons class.
Oversizes indicated by nominal diameter meas-
urement.
Pistons
67. Measure the pistons with a micrometer at right
angles to the gudgeon pin hole and 6 mm (0.25")
from the lower edge.
Piston diameter standard. AQ145
(C-marked): 95.940–95.950 mm (3.7776–3.7780 in.)
(D-marked): 95.950–95.960 mm (3.7787–3.7791 in.)
(E-marked): 95.960–95.970 mm (3.7780–3.7783 in.)
(G-marked): 95.980–95.990 mm (3.7787–3.7791 in.)
Oversize I:
(0.3–96.245): 96.237–96.252
(0.0118–3.7892): 3.7889–3.7894"
II: (0.6–96.545): 96.537–96.552
(0.0236–3.8010): 3.8007–3.8013"
Piston diameter standard. AQ125
(D-marked). 91.990–92.000 mm (3.6216–3.6220 m.)
(G-marked). 92.020–92.030 mm (3.6228–3.6232 in.)
Oversize I:
(0.5–92.480): 92.474–92.492
(0.0196–3.6409): 3.6407–3.6414 in.)
II: (1.0–92.980): 92.977–92.992
(0.394–3.6606): 3.6605–3.6611 in.)