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| 75 HP 1992 Mariner prop ? |
| Author |
Message |
    
Ron
Member
Username: woodfan
Post Number: 4
Registered: 05-2008
| | Posted on Wednesday, May 21, 2008 - 10:11 pm: | 
|
Could someone tell me what prop came standard on my motor? Or at least the recommended prop. Ser# 0D096787. I have a service manual on the way, but I don't know if it will list the proper prop. The prop will be used for 95% fishing.
Many Thanks'
Ron |
Graham Lamb
Senior Member
Username: galamb
Post Number: 3218
Registered: 05-2007
| | Posted on Wednesday, May 21, 2008 - 11:11 pm: |
|
Ron, the stock prop is of zero value unless you have it on a boat of a specific weight, loaded in a particular fashion.
You need to select a diameter and pitch that will allow the motor to get into it's Wide Open Throttle range.
So, your motor hung on the back of a 17' full console weighing 1300 pounds may need a 13 or 15 pitch - that same motor on a 700 pound 16 footer could easily run a 19 or 21 pitch (so say it came with a 17 from factory - it would not really suit either application)
Because of that, most motors over 25 horses now do not come with a factory prop - it is selected after the motor is purchased.
If you list the make/model of your boat, length, average load you carry (2 guys, 2 batteries etc) can throw the numbers into a prop calculator and give you a recommendation.
Alternately, you can try the prop selector on this site (in the prop section to the right) and it will also give you a rough idea. |
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