Evinrude E-NATION, for those dedicated to water, power, fishing and fun
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Skipper
Posts: 9
Registered: ‎07-08-2012

PropPurchase

2006 40ph E-tec.  Current prop.  13 1/2" x 15", 13 spline.

 

I need to purchase a spare prop.  Very confusing process.  How do they classify this motor.  Is it "commercial", does it have the "large" lower unit?  What manufacturers are good to work with?  If someone knows a specific model number to look for, that would be great.  Thanks for any help you can provide.

10 Rings and Tight Lines
Admiral
Posts: 8,508
Registered: ‎07-14-2011

Re: PropPurchase

What rpm do you see with your current prop at full throttle with a regular load of fuel, gear, and passengers aboard?

 

The 40hp uses a V4 series propeller, thus the 13 splines.

 

What is the make and model of your propeller?

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.


Skipper
Posts: 9
Registered: ‎07-08-2012

Re: PropPurchase

I believe this is the original prop.  Other than the size and pitch, I only find two other numbers on the prop....18716 with what looks like clover design stamped in the metal, AND 763466.  I hope this helps.

 

This is a tiller motor and there is no tac from which to read rpm's.  

10 Rings and Tight Lines
Admiral
Posts: 8,508
Registered: ‎07-14-2011

Re: PropPurchase

That prop number is an aluminum Evinrude prop with 15" pitch.

 

It is imperative to know the top rpm with that prop before doing anything else. If you do not have a tach and cannot borrow a clip-on or shop tach, then get with your dealer for a test run with his laptop and diagnostic software to find the rpm.

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.


Skipper
Posts: 9
Registered: ‎07-08-2012

Re: PropPurchase

BluewaterBill, why do I need to know the rpm's?  This is the original prop on a motor with less than 100 hours on it.  It runs great.  Why can't I simply buy another prop like this one and expect it to serve fine as a spare prop?  Please advise.

10 Rings and Tight Lines
Highlighted
Admiral
Posts: 8,508
Registered: ‎07-14-2011

Re: PropPurchase

[ Edited ]

 The engine has to run at a certain full throttle rpm range for best results which is normally in the upper half of the top rpm to perform correctly. Without that information, who knows if the prop someone installed is hurting  the engine and causing it to lose performance?

 

Please download and study this illustrated Evinrude propeller selection booklet. It should explain things in more detail and answer your questions.

 

http://www.evinrude.com/Content/Pdf/en-US/PropSelectionGuide_766315.pdf

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.