Outboard Engine BF225A - Shop Manual Flashcards
Engine type
4-stroke, OHC, 6-cylinder
Displacement
3471 cc (211.7 cu/in)
Bore x Stroke
89 x 93 mm (3.5 x 3.7 in)
Compression ratio
9.4:1
Cooling system
Forced water circulation by impeller pump with thermostat
Ignition system
Full transistorized, battery ignition
Timing
10 degrees @ 650 RPM BTDC
Fuel supply system
Programmed fuel injection
Fuel injection system
Electronic control
Fuel injection nozzle
Pintle type
Fuel
Unleaded gasoline with an octane rating of 86 or higher
Fuel pump
Electric and mechanical plunger type
Lubrication system
Pressure lubrication by trochoid pump
L/O capacity
7.6 L (8.0 US qt, 6.7 imp qt)
Starter system
Electric starter
Stopping system
Primary circuit ground
Exhaust system
Underwater type
Clutch
Dog clutch
Gear ratio
0.536 (15/28)
Reduction
Spiral bevel
Gear case oil capacity
1.17 L (1.24 US qt, 1.03 imp qt)
Serial number location
Alternator bracket
Base idle speed
570 +/- 30 RPM
Trolling speed
650 +/- 50 RPM
Idle speed (in neutral)
650 =/- 50 RPM
Spark plug gap
1.0 - 1.1
Oil type
SAE 10W30
Gear case oil type
Marine SAE 90 Hypoid gear oil API Service classification GL-4 or GL-5
If water is in the gear case, when draining ___
It will pour water out first, or be emulsified
If water in the gear oil is detected ___
Check the gaskets and water seals for damage, and check the torque on the gear case bolts
If there are metal particles on the magnet end of the oil drain bolt, ___
Disassemble the gear case assembly and check
If the spark plug gap is out of spec ___
Replace, do not adjust
Measure plug gap with ___
A wire-type feeler gauge
Tighten a new spark plug ___
An additional 1/2 turn
Tighten a used spark plug ___
1/8 to 1/4 turn
Valve clearance inspection and adjustment must be performed with the engine ___
Cold
To do valve clearance, start by turning the crankshaft pulley ___, and align ___
Clockwise #1 TDC marks on both side of timing belt driven pulleys with the marks on the timing belt back covers
Thermostat inspection
Immerse in water, heat the water, and observe thermostat with thermometer (don’t let either touch the container), measure lift height
Thermostat starts opening
60 degrees C (140 degrees F)
Thermostat fully open
70 degrees C (158 degrees F)
Thermostat lift height
More than 3.0 mm (0.12 in)
Fuel strainer replacement period
2 years or 400 hours
To adjust idle speed, first ___
Remove propeller and place in test tank filled with water
Adjust idle by ___
Turning the idle adjusting screw
After idle adjustment, apply ___ to the entire surface of the idle adjusting screw head
Nippon Paint Uni-pack 200 or equivalent
After adjusting idle reset the ___
ECM
Timing belt deflection inspection measurement point
Mid point between the left side timing belt driven pulley and the idler pulley B
Alternator belt deflection inspection measurement point
The center between the alternator and the crankshaft pulley
