Volvo Penta AQ125A, Руководство по ремонту

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Technical Data
AQ145A, AQ125A
1) Max. flywheel output acc. to SAE J-607.
2) With Power Trim, 275 (606).
3) See parts catalogue AQ145.
4) See parts catalogue AQ125.
General
Type designation .................................................................. AQ145A AQ125A
Type of operation .................................................................. 4 stroke overhead
Max. effekt 1) kW .................................................................... 99 (135 hp) 84 (115 hp)
Max. speed ........................................................................... 91.7 r/s (5500 r/m) 80 r/s (4800 r/m)
Max. cruising speed .............................................................. 5–8 r/s (300–500 r/m)
(below max. speed reached)
Compression ratio ................................................................. 9.7:1 9.3:1
Compression pressure at starter motor speed ...................... 10–12 kp/cm 2 (146–174 lbf./in. 2 )
No. of cylinders ..................................................................... 4 in line
Bore ................................................................................... 96 mm (3,7795 in.) 92 mm (3,622 in.)
Stroke ................................................................................... 80 mm (3.150 in.)
Displacement ........................................................................ 2.315 dm 3 2.127 dm 3
(141.271 cu.in.) (129.798 cu.in.)
Weight incl. drive without oil and water, approx. .................... 245 kg (529 lb.) 2) 240 (529 lb.) 2)
Idling speed .......................................................................... 15 r/s (900 r/m)
CYLINDER BLOCK
Material ................................................................................. Cast iron
Bore, standard ...................................................................... 96.00–96.03 mm 92.01–92.02 mm
(3.7795–3.7897") 3.6224–3.6228 in.)
Bore, oversize 1 ................................................................... 96.300 mm (3.7913 in.) 92.500 mm (3.6417 in.)
Bore, oversize 2 ................................................................... 96.600 mm (3.8031 in.) 93.000 mm (3.6614 in.)
PISTONS
Material ................................................................................. Light alloy
Height total ............................................................................ 80.4 mm (3.165 in.) 71.0 mm (2.795 in.)
Height from gudgeon pin centre to piston top ........................ 46.4 mm (1.8268 in.) 46.0 (1.811 in.)
Piston clearance ................................................................... 0.05–0.07 mm 0.01–0.03 mm
(0.0020–0.0028 in.) (0.0004–0.0012 in.)
Piston, standard size ............................................................ 95.940–95.990 mm 91.991–92.000 mm
(3.7772–3.7791 in.)
3)
(3.6217–3.6220 in.)
4)
Piston, oversize 1 ................................................................. 96.237–96.252 mm 92.472–92.487 mm
(3.7889–3.7894 in.) (3.6406–3.6412 in.)
Piston oversize 2 .................................................................. 96.537–96.552 mm 92.972–92.978 mm
(3.8007–3.8013 in.) (3.6603–3.6605 in.)
PISTON RINGS
Piston ring gap measures in the opening of the ring (oil rings) 0.30–0.60 mm 0.25–0.40 mm
(0.0118–0.0236 in.) (0.0098–0.0157 in.)
'' (compression ring) 0.40–0.65 mm 0.35–0.55 mm
(0.0157–0.0256 in.) (0.0138–0.0217 in.)
Piston ring oversize 1 ........................................................... 0.3 mm (0.0118 in.) 0.5 mm (0.0197 in.)
Piston ring oversize 2 ........................................................... 0.6 mm (0.0236 in.) 1.0 mm (0.0394 in.)
Compression rings
Top ring chromed. Lower ring marked “TOP”
Number on each piston .........................................................
2
Height upper ......................................................................... 1.728–1.740 mm 1.978–1.990 mm
(0.0680–0.0685 in.) (0.0779–0.0783 in.)
Height lower .......................................................................... 1.978–1.990 mm 1.978–1.990 mm
(0.0779–0.0783 in.) (0.0779–0.0783 in.)
Piston ring clearance in groove, upper .................................. 0.060–0.092 mm 0.040–0.072 mm
(0.0024–0.0036 in.) (0.0016–0.0028 in.)
Piston ring clearance in groove, lower ................................... 0.040–0.072 mm 0.040–0.072 mm
(0.0016–0.0028 in.) (0.0016–0.0028 in.)