Honda BF40D User Manual

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5. WATER PUMP/SHIFT ROD
a. DISASSEMBLY
Remove the following parts.
- Propeller (P. 11-2)
- Gear case assembly (P. 11-3)
- Propeller shaft holder assembly (P. 11-7)
1) Remove the four 6 x 40 mm hex bolts and the four 6 mm
washers, and remove the impeller housing assembly from
the gear case assembly.
2) Remove the four impeller housing collars and the water
tube seal ring from the impeller housing assembly.
3) Remove the woodruff key from the vertical shaft.
[4]
6 x 40 mm BOLT
WASHER (4)
[2]
IMPELLER HOUSING
ASSEMBLY
[3]
IMPELLER HOUSING
COLLAR (4)
[1]
WATER TUBE
SEAL RING
[5]
WOODRUFF
KEY
4) Check the pump impeller for cracks, wear or damage from
overheating, and replace it if necessary.
5) Remove the pump impeller, water pump liner and the
water pump O-ring from the impeller housing.
Replace the O-ring with a new one on reassembly.
[1]
IMPELLER HOUSING
[3]
PUMP
IMPELLER
[4]
WATER PUMP
LINER
[2]
WATER PUMP
O-RING
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Honda BF40D Specifications

General

Displacement	808 cc
Full Throttle RPM Range	5, 000-6, 000 RPM
Horsepower	40 HP
Cooling System	Water Cooled
Starting System	Electric
Lubrication	Wet Sump
Trim Range	-4° to +16°
Tilt Range	72°
Steering	Remote
Gear Shift	F-N-R
Gear Ratio	2.08:1
Fuel Tank Capacity	External
Fuel Delivery	Programmed Fuel Injection
Exhaust	Through Propeller
Weight	205 lbs
Shaft Length	L type: 20 in, X type: 25 in
Alternator Output	12V
Engine Type	4-Stroke, SOHC, 3 Cylinder
Cylinder Configuration	Inline 3