example

USEFUL INFORMATION

ENGINE BELL HOUSING TO SAE STANDARDS

Below are the details you will need to determine the size of Bell housing fitted to your engine. SAE No 00 0 1/2 ID Register PCD of Bolts* No Bolts Bolt Size

P C D

13mm (1/2”) 13mm (1/2”) 13mm (1/2”) 11mm (7/16”) 10mm (3/8”) 10mm (3/8”) 10mm (3/8”) 10mm (3/8”) 10mm (3/8”)

787mm (31.00”) 647mm (25.50”) 584mm (23.00”) 511mm (20.125”) 447mm (17.625”) 409mm (16.125”) 362mm (14.250”) 314mm (12.375”) 266mm (10.50”)

850mm (33.50”) 681mm (26.85”) 619mm (24.375”) 530mm (20.875”) 466mm (18.375”) 428mm (16.875”) 381mm (15.00”) 333mm (13.125”) 285mm (11.250”)

16 16 12 12 12 12 12

Inside Register

1 2 3 4 5 6

8 8

* PCD = Pitch Circle Diameter. This is determined as shown above.

HOW TO WORK OUT YOUR PCD

OPTION A

OPTION B

A

PCD =

Hole centres from 6 o’clock to 12 o’clock.

Both dimensions must be equal

A x A x 2

PCD

A

PCD

Light Type Port Red Starboard Green Stern White Masthead White Bicolour Red/Green Tricolour Red/Green/White Towing Yellow All Round White All Round Red All Round Green NAVIGATION LIGHTS

BOW

Visibility Arc 112.5° 112.5°

Under 12m 10W 10W 10W 10W 10W 10W 10W 10W 10W 10W

12m to 20m 25W 25W 10W 25W 25W 25W 10W 10W 25W 25W

Over 20m 25W 25W 25W 25W 25W 25W 25W 25W 25W 25W

135° 225° 225° 360° 135° 360° 360° 360°

Stern Aft

ELECTRICAL TRIANGLE

AWG SIZES

mm 2 0.82 1.31 2.08 3.31 5.26 8.34 13.3 21.2 33.6 42.4 53.5 67.7 85.6 107.0

AWG 18 16 14 12 10

SAE cm Area J1127, J1128 1,537 2,336 3,702 5,833 9,343

USE THIS SIMPLE GUIDE TO FIND OUT YOUR AMPS, VOLTS OR WATTS? Simply block out the value you require and the positions of the other two will indicate what you need to do to find it. If you require volts, divide watts by amps.

P (Watts)

X

8 6 4 2 1

14,810 24,538 37,360 62,450 77,790 98,980 125,100 158,600 205,500

I (Amps)

V (Volts)

1/0 2/0 3/0 4/0

FLEXIBLE SHAFT COUPLINGS

To calculate power of flexible coupling required:

DAMPER DRIVE PLATES

Horsepower of engine x Reduction ratio x 100 = HP / 100 rpm Engine speed Example: 150hp / 2400rpm x 2 x 100 = 12.5 Max. HP / per 100rpm

How to work out the torque of your engine for drive plates ENGINE HORSE POWER x 5250 = Torque lbft ENGINE SPEED ENGINE HORSE POWER x 7123 = Torque Nm ENGINE SPEED 150 x 5250 = 5250 = 315 lbft 2500 150 x 7123 = 427 Nm 2500 Example:

OTHER USEFUL INFORMATION

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