cajuncook1
Chief Petty Officer
- Joined
- Sep 3, 2009
- Messages
- 559
Re: Evinrude/Johnson Engine Tuner
Re: Evinrude/Johnson Engine Tuner
Tromso , Norway weather Date: August 04, 2010 1900hrs
Weather forecast for Tromso, Norway
weather.yahoo.com
Hi 50
L0 42
Partly Cloudy
Currently: 43?F
The current climate you live in currently cool to cold. If you have no thermostat to maintain a powerhead running temp between 120 to 160, then the cold waters that you are running your motor in will accelerate the carbon/coking build up process in your powerhead, on top of your cylinders and around the rings. Your plugs will foul up in no time causing the problems that you are having now.
The thermostat stays closed until the temperature of the powerhead starts reaching about 130 to140F, then the thermostats starts to open to allow some water in to circulate around the water jackets to cool off the power head to maintain a good operation, again between 120 to 160F. So, the thermostat will open and close to help maintain operation temperature. It is within the 120 to 160F range that the optimal combustion of the fuel oil mix takes place.
If you have no thermostat in or it is faulty then water will circulate around the water jackets all the time and the powerhead will stay much colder. Colder powerhead temperatures will allow the unburned fuel oil mix to build up and slug up all over instead of being burned off or exiting the exhaust/water mix going out near the foot of the motor.
So, follow the instructions of the Evinrude Engine Turner that you got and take off the spark plugs and sprays some in the spark plug holes to soak the heads of the pistons some and replace the spark plugs.
A fellow antique/vintage restorer, who works as a certified Evinrude/Johnson mechanic in a Florida dealership states the Evinrude Engine Turner is a very good product.
So, please do yourself a favor, put a new thermostat in the motor, decarb with the Engine Turner product. Replace the spark plugs with J6C gapped at .030
Now remember, that motor is going to smoke a whole bunch, when you get it out on the water to run it. Run it until it stops a good bit of the smoking. All that smoke is the carbon/coke burning away.
Change to fresh new pair of plugs after the decarbing and re-torque the spark plugs when done.
This is what you posted first!
The whole time, your problem was your thermostat, because you stated it would run fine until the spark plugs foul up with carbon that built up!!
You replace your thermostat then your problems should go away too. Would not hurt to do a decarbing once a year. Good cheap insurance.
Good luck and hope you get back to fishing soon
!! Please don't think I was shouting at you with the bold words or large font size, I was trying to get your attention and focus on the apparent problem. That is all
I do sincerely wish you good luck!
Edit: I edited the font size, nwcove was right...too big
Re: Evinrude/Johnson Engine Tuner
Tromso , Norway weather Date: August 04, 2010 1900hrs
Weather forecast for Tromso, Norway
weather.yahoo.com
Hi 50
L0 42
Partly Cloudy
Currently: 43?F
The current climate you live in currently cool to cold. If you have no thermostat to maintain a powerhead running temp between 120 to 160, then the cold waters that you are running your motor in will accelerate the carbon/coking build up process in your powerhead, on top of your cylinders and around the rings. Your plugs will foul up in no time causing the problems that you are having now.
The thermostat stays closed until the temperature of the powerhead starts reaching about 130 to140F, then the thermostats starts to open to allow some water in to circulate around the water jackets to cool off the power head to maintain a good operation, again between 120 to 160F. So, the thermostat will open and close to help maintain operation temperature. It is within the 120 to 160F range that the optimal combustion of the fuel oil mix takes place.
If you have no thermostat in or it is faulty then water will circulate around the water jackets all the time and the powerhead will stay much colder. Colder powerhead temperatures will allow the unburned fuel oil mix to build up and slug up all over instead of being burned off or exiting the exhaust/water mix going out near the foot of the motor.
So, follow the instructions of the Evinrude Engine Turner that you got and take off the spark plugs and sprays some in the spark plug holes to soak the heads of the pistons some and replace the spark plugs.
A fellow antique/vintage restorer, who works as a certified Evinrude/Johnson mechanic in a Florida dealership states the Evinrude Engine Turner is a very good product.
So, please do yourself a favor, put a new thermostat in the motor, decarb with the Engine Turner product. Replace the spark plugs with J6C gapped at .030
Now remember, that motor is going to smoke a whole bunch, when you get it out on the water to run it. Run it until it stops a good bit of the smoking. All that smoke is the carbon/coke burning away.
Change to fresh new pair of plugs after the decarbing and re-torque the spark plugs when done.
This is what you posted first!
The whole time, your problem was your thermostat, because you stated it would run fine until the spark plugs foul up with carbon that built up!!
You replace your thermostat then your problems should go away too. Would not hurt to do a decarbing once a year. Good cheap insurance.
Good luck and hope you get back to fishing soon
!! Please don't think I was shouting at you with the bold words or large font size, I was trying to get your attention and focus on the apparent problem. That is allI do sincerely wish you good luck!
Edit: I edited the font size, nwcove was right...too big
