| Author |
Message |
    
jody ray
Member
Username: hd4ou
Post Number: 8
Registered: 03-2009
| | Posted on Sunday, August 30, 2009 - 07:12 pm: | 
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1999 25 hp Nissan. 1st issue. this engine has always been kinda funny acting. When i first launch it all is well. runs fine gets on plane as best it can. its no powerhouse as its on a 16 ft alumaweld boat. get to where I am going and tie up to fish. Now I can sit there for 15 mins or 5 hrs and when I restart it, it starts fine and runs ok but it will not get on plane at all. Any idea on this one?
2nd issue. pulled the prop and ordered a new shaft seal. After many bad 4 letter words finally got the old seal out. Now several weeks later as i am ready to put it back together i cant remember which way that brass piece between the prop and the gear housing goes in. can anyone tell me? |
Tohatsu Guru
Advanced Member
Username: tohatsu_guru
Post Number: 926
Registered: 06-2007
| | Posted on Thursday, September 03, 2009 - 02:59 pm: |
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The spacer on the prop has one side that nests inside the propeller. I would run the engine by a dealer and have it checked as there are many possible causes for that kind of problem. |
jody ray
Member
Username: hd4ou
Post Number: 9
Registered: 03-2009
| | Posted on Saturday, September 05, 2009 - 09:10 am: |
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does it sound like some type of electrical issue like a coil breakdown or something else? what kind of test can i do myself? |
Tohatsu Guru
Advanced Member
Username: tohatsu_guru
Post Number: 935
Registered: 06-2007
| | Posted on Monday, September 07, 2009 - 09:44 am: |
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It could be electrical, but "not getting on plane" is a broad symptom with virtually unlimited possible causes. You have three primary engine systems that have a variety of parts that can fail:
Ignition
Mechanical
Fuel
You pick one system, pull out your service manual and start testing that system for errors. I would start with the fuel system as 90% of problems are related to the fuel itself or the system the delvers it to the combustion chamber. |
jody ray
Member
Username: hd4ou
Post Number: 13
Registered: 03-2009
| | Posted on Monday, September 07, 2009 - 10:13 am: |
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there are probably several so called service manuals for this engine. would you mind suggestion which one and where to get it. dont mind spending a little more if its a better manual. |
Tohatsu Guru
Advanced Member
Username: tohatsu_guru
Post Number: 937
Registered: 06-2007
| | Posted on Monday, September 07, 2009 - 03:19 pm: |
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I would pick up the factory manual, which is available from any Nissan or Tohatsu dealer. |
dustin chisholm
New member
Username: dredd
Post Number: 1
Registered: 10-2009
| | Posted on Monday, October 12, 2009 - 03:44 pm: |
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mine was doing the same thing about 3 weeks ago. I figured out the spark plug wires would get wet when i would stop from water splashing back on the motor and making its way past the gasket on the lower cowling(mine is dry rotted). I replaced the wires and boots and sealed it all with spray electrical tape in a can. It has been about 3 weeks of using the boat every other day or so and I haven't had another issue. Start with the samll things first like checking your wires and coil for damage. I fixed my motor for less than 20 dollars when I originally planned to buy a new coil for 70 dollars that wouldn't have even solved the problem. |
