1
Safety Precautions.............................................................................................................2
General Information ...........................................................................................................5
Repair Instructions ............................................................................................................6
Presentation .......................................................................................................................8
Repair Instructions
Disassembling, Overhauling and Inspection
Electrical parts, carburetor ...................................................................................................9
Heating exchanger, exhaust pipe, oil filter .................................................................. 10–11
Oil cooler, sea water pump ............................................................................................... 12
Circulation pump, belt pulley, marking the timing belt ...................................................... 13
Belt tensioner, intermediate pulley, camshaft pulley......................................................... 14
Sealing flange, flywheel cover .......................................................................................... 15
Vibration damper, intermediate shaft ................................................................................ 16
Camshaft........................................................................................................................... 16
Cylinder head valves .................................................................................................. 16–18
Valve seats, guides, springs, pushers ........................................................................ 19–22
Flywheel, sealing .............................................................................................................. 22
Lubricating oil pump, pistons, crankshaft .................................................................... 23–24
Cylinders, pistons, connecting rods, crankshaft.......................................................... 25–28
Fuel pump, oil cooler, lubricating oil pump ................................................................. 28–30
Heat exchanger, carburetor, flywheel cover................................................................ 31–33
Assembling
Crankshaft, pistons, lubrication oil pump, flywheel ..................................................... 33–35
Oil sump, cylinder head, camshaft .............................................................................. 36–37
Intermediate shaft, seals, camshaft gear wheel .......................................................... 38–39
Intermediate gear, marking, timing belt ....................................................................... 40–42
Oil pump drive, circulation pump, valve adjustment.................................................... 42–46
Distributor, oil cooler, exhaust pipe, heat exchanger .................................................. 46–48
Lubrication oil filter, sea water pump, expansion tank ................................................ 48–49
Thermostat sea water strainer, alternator.................................................................... 49–50
Starter motor, induction pipe, carburetor ..................................................................... 50–51
Electric wiring diagram ................................................................................................... 52
Fault finding chart ........................................................................................................... 53
Special tools .............................................................................................................. 54–55
Technical data AQ125A, AQ145A ............................................................................ 56–60
Valve adjusting kit........................................................................................................... 61
Technical data AQ125B, AQ145B ............................................................................ 62–68
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