13 sport water spray issue
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Slickityd16t |
Posted on 03/07/12 - 7:48 AM
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I'm having a big issue with water flowing over the transom from under the motor bracket while cruising. It's a 86 and I have not seen the issue before. My 2000 johnson 40 hp is mounted it the same location as last year when I didn't have the issue. The only thing that is different is that the tilt/trim motor is moved to postion number 3 on the bottom of the bracket.
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CES |
Posted on 03/07/12 - 7:51 AM
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Since you changed the tilt angle, you're probably getting spray from the different angle. Have ya thought about raising your motor ont he transom?
Edited by CES on 03/07/12 - 7:52 AM
Cliff
1966 13' Sport with a 1993 40hp Yamaha 2 Smoker |
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thegage |
Posted on 03/07/12 - 7:52 AM
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I don't quite get what you're describing. The title of your post says "water spray", which leads me to think the motor is mounted too low down and is creating a rooster tail/spray, some of which comes over the transom; however, you also says "water flowing" which seems to me to mean a lot more water than just spray.
Also, what is "position number 3 on the bottom of the bracket"? Do you mean the tilt lower-limit pin?
John K.
John Kittredge
1991 16 SL - 2013 E-TEC 90 |
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Slickityd16t |
Posted on 03/07/12 - 8:40 AM
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I tried mounting the motor up one hole the result was the same. The tilt/trim motor mounting pin was moved to the most verticle postion so it puts less stress on the system while cruising.
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burtim |
Posted on 03/07/12 - 2:52 PM
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Has this boat been kept in the water? Is it possible there is water in the hull and the boat is setting lower than in the past?
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Geo |
Posted on 03/07/12 - 4:21 PM
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This sort of problem can occur if you are using a long-shaft 20" motor on a older small Whaler hull that is designed for a short-shaft 15" motor. What sort of motor do you have?
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John Fyke |
Posted on 03/07/12 - 4:44 PM
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Where does the cavitation plate line up with the keel? You still may have the motor mounted too low.
John Fyke
Re-Fit or Reef It
1979 15' Sport with Super Sport conversion and 70hp mercury. |
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Slickityd16t |
Posted on 03/07/12 - 9:32 PM
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The boat has been kept out of the water. The motor a 2000 johnson 40hp is a 20" shaft. The cavition plate was almost dead even with the keel when i noticed the problem now it is 1 inch lower.
Edited by Slickityd16t on 03/07/12 - 9:34 PM |
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thegage |
Posted on 03/07/12 - 10:07 PM
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The motor's definitely too low.
John K.
John Kittredge
1991 16 SL - 2013 E-TEC 90 |
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CES |
Posted on 03/08/12 - 2:47 AM
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Slickityd16t wrote:
The boat has been kept out of the water. The motor a 2000 johnson 40hp is a 20" shaft. The cavition plate was almost dead even with the keel when i noticed the problem now it is 1 inch lower.
That's your problem, you need to raise your motor on the transom so that your Cav plate is at least an inch higher than the bottom of the boat.
Cliff
1966 13' Sport with a 1993 40hp Yamaha 2 Smoker |
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John Fyke |
Posted on 03/08/12 - 3:40 AM
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Raise the motor two more notches.
John Fyke
Re-Fit or Reef It
1979 15' Sport with Super Sport conversion and 70hp mercury. |
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Slickityd16t |
Posted on 03/08/12 - 7:02 AM
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CES wrote:
Slickityd16t wrote:
The boat has been kept out of the water. The motor a 2000 johnson 40hp is a 20" shaft. The cavition plate was almost dead even with the keel when i noticed the problem now it is 1 inch lower.
That's your problem, you need to raise your motor on the transom so that your Cav plate is at least an inch higher than the bottom of the boat.
But it never did it before mounted on the bottom hole. Does everybody else here have theirs mounted 2 holes up?
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Slickityd16t |
Posted on 03/08/12 - 7:08 AM
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I also wonder if it could the hydrofoil I have installed
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butchdavis |
Posted on 03/08/12 - 7:54 AM
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Yes, it could.
Butch |
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John Fyke |
Posted on 03/08/12 - 8:06 AM
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I'm not a fan of hydrofoils at all.
John Fyke
Re-Fit or Reef It
1979 15' Sport with Super Sport conversion and 70hp mercury. |
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Brooksinct |
Posted on 03/08/12 - 10:13 AM
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Why did you put a hydrofoil on it?
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John Fyke |
Posted on 03/08/12 - 10:30 AM
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If your motor is rigged right you will not need a hydrofoil. Period.
John Fyke
Re-Fit or Reef It
1979 15' Sport with Super Sport conversion and 70hp mercury. |
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CES |
Posted on 03/08/12 - 11:08 AM
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Slickityd16t wrote:
I also wonder if it could the hydrofoil I have installed
The back spray has everything to do with the hydrofoil you installed.
Once you give us all the information, we're more able to help you out with your problem.......instead of us having to peel back the onion and find out what's been going on.
If I were you, I'd take that thing off and set up your motor correctly and you'll be fine.
Cliff
1966 13' Sport with a 1993 40hp Yamaha 2 Smoker |
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thegage |
Posted on 03/08/12 - 11:17 AM
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Slickityd16t wrote:
I also wonder if it could the hydrofoil I have installed
Just like an episode of Car Talk: "Oh, did I forget to mention that the Check Engine Light is On?"
John Kittredge
1991 16 SL - 2013 E-TEC 90 |
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John Fyke |
Posted on 03/08/12 - 11:24 AM
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Just like an episode of Car Talk: "Oh, did I forget to mention that the Check Engine Light is On?
Exactly.
John Fyke
Re-Fit or Reef It
1979 15' Sport with Super Sport conversion and 70hp mercury. |
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