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Better test stuff > Outboard Engine BF225A - Shop Manual > Flashcards

Outboard Engine BF225A - Shop Manual Flashcards

1
Q

Engine type

A

4-stroke, OHC, 6-cylinder

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2
Q

Displacement

A

3471 cc (211.7 cu/in)

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3
Q

Bore x Stroke

A

89 x 93 mm (3.5 x 3.7 in)

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4
Q

Compression ratio

A

9.4:1

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5
Q

Cooling system

A

Forced water circulation by impeller pump with thermostat

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6
Q

Ignition system

A

Full transistorized, battery ignition

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7
Q

Timing

A

10 degrees @ 650 RPM BTDC

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8
Q

Fuel supply system

A

Programmed fuel injection

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9
Q

Fuel injection system

A

Electronic control

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10
Q

Fuel injection nozzle

A

Pintle type

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11
Q

Fuel

A

Unleaded gasoline with an octane rating of 86 or higher

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12
Q

Fuel pump

A

Electric and mechanical plunger type

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13
Q

Lubrication system

A

Pressure lubrication by trochoid pump

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14
Q

L/O capacity

A

7.6 L (8.0 US qt, 6.7 imp qt)

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15
Q

Starter system

A

Electric starter

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16
Q

Stopping system

A

Primary circuit ground

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17
Q

Exhaust system

A

Underwater type

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18
Q

Clutch

A

Dog clutch

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19
Q

Gear ratio

A

0.536 (15/28)

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20
Q

Reduction

A

Spiral bevel

21
Q

Gear case oil capacity

A

1.17 L (1.24 US qt, 1.03 imp qt)

22
Q

Serial number location

A

Alternator bracket

23
Q

Base idle speed

A

570 +/- 30 RPM

24
Q

Trolling speed

A

650 +/- 50 RPM

25
Q

Idle speed (in neutral)

A

650 =/- 50 RPM

26
Q

Spark plug gap

A

1.0 - 1.1

27
Q

Oil type

A

SAE 10W30

28
Q

Gear case oil type

A

Marine SAE 90 Hypoid gear oil API Service classification GL-4 or GL-5

29
Q

If water is in the gear case, when draining ___

A

It will pour water out first, or be emulsified

30
Q

If water in the gear oil is detected ___

A

Check the gaskets and water seals for damage, and check the torque on the gear case bolts

31
Q

If there are metal particles on the magnet end of the oil drain bolt, ___

A

Disassemble the gear case assembly and check

32
Q

If the spark plug gap is out of spec ___

A

Replace, do not adjust

33
Q

Measure plug gap with ___

A

A wire-type feeler gauge

34
Q

Tighten a new spark plug ___

A

An additional 1/2 turn

35
Q

Tighten a used spark plug ___

A

1/8 to 1/4 turn

36
Q

Valve clearance inspection and adjustment must be performed with the engine ___

A

Cold

37
Q

To do valve clearance, start by turning the crankshaft pulley ___, and align ___

A 
Clockwise
#1 TDC marks on both side of timing belt driven pulleys with the marks on the timing belt back covers
38
Q

Thermostat inspection

A

Immerse in water, heat the water, and observe thermostat with thermometer (don’t let either touch the container), measure lift height

39
Q

Thermostat starts opening

A

60 degrees C (140 degrees F)

40
Q

Thermostat fully open

A

70 degrees C (158 degrees F)

41
Q

Thermostat lift height

A

More than 3.0 mm (0.12 in)

42
Q

Fuel strainer replacement period

A

2 years or 400 hours

43
Q

To adjust idle speed, first ___

A

Remove propeller and place in test tank filled with water

44
Q

Adjust idle by ___

A

Turning the idle adjusting screw

45
Q

After idle adjustment, apply ___ to the entire surface of the idle adjusting screw head

A

Nippon Paint Uni-pack 200 or equivalent

46
Q

After adjusting idle reset the ___

A

ECM

47
Q

Timing belt deflection inspection measurement point

A

Mid point between the left side timing belt driven pulley and the idler pulley B

48
Q

Alternator belt deflection inspection measurement point

A

The center between the alternator and the crankshaft pulley

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