Evinrude E-NATION, for those dedicated to water, power, fishing and fun
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Captain
Posts: 41
Registered: ‎03-20-2014

Water temp?

97' 150 Fitch Ocean Pro: Will get up on plane and run fine, but when the motor is trimmed up the temp light comes on and motor begins to miss. Any ideas?
Highlighted
Admiral
Posts: 8,863
Registered: ‎07-14-2011

Re: Water temp?

If the HOT light is coming on, and the engine automatically slows to about 2500 rpm, then the motor is overheating, possibly from being mounted too high on the transom.

 

What is the engine model number?

 

 

 


"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.


Highlighted
Captain
Posts: 41
Registered: ‎03-20-2014

Re: Water temp?

E150fsleea
Highlighted
Admiral
Posts: 8,863
Registered: ‎07-14-2011

Re: Water temp?

Does the motor suddenly slow to about 2500 rpm when the TEMP light comes on or does the CHECK ENGINE  light illuminate instead?

 

 

 


"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.


Highlighted
Captain
Posts: 41
Registered: ‎03-20-2014

Re: Water temp?

No check engine...just water temp
Highlighted
Admiral
Posts: 8,863
Registered: ‎07-14-2011

Re: Water temp?

[ Edited ]

 

 

First thing is to make certain that it is an overheat condition in the engine and not a false warning.

 

Water pressure tests, temperature readings of the cylinder heads and the heat sensor and overtemp switch pockets, and testing of the temp sensor and the overtemp switch along with associated wiring have to be performed.

 

If the motor is actually overheating then  replacement of the water pump assembly and inspections of the cooling system parts are needed. Thermostats and springs need to be examined and tested and made sure that the thermostats are not sticking in the rubber seals in the cylinderheads. The bottom of the boat and any transducers or thru-hull fittings cannot be within about 17" of the engine centerline or the cause could be aerated water being ingested into the cooling system.

 

By the way, your motor is a1999 model, not a 1997 engine.

 

Troubleshooting is a process of elimination and inspections to determine the root cause of a problem. Your best bet is to have an experienced and trained FICHT specialist check over the engine for you.

 

 

 


"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.