Engine won't start

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   ProTech is an engine management system that PCM developed in the early 90's.  ProTech came on fuel injected engines and carburetor engines.  The ProTech system controlled the spark / timing advance and monitored the engine for oil pressure and temperature.  A ProTech engine does not have a traditional distributor.  If your engine has the spark plug wires running to the rear of the engine into 4 rectangular "coil packs" then you have the ProTech system.  The ProTech system used a "trigger" or crankshaft position sensor that is located in the spot normally occupied by the distributor.  When the ProTech system fails (and it will eventually fail), you can replace the system with a traditional distributor.  Do a search here and you will find plenty of info about the ProTech retro-fit.

If you have a voltmeter, you may want to test your starter switch.  The switch is located at the rear of the engine.  Follow the fat red wire from the starter back to the switch.  The picture below shows how the switch is wired:

You should have power to the "S" terminal when the key is turned to the "start" position.  If not, you may have a bad starter switch or even a bay key switch.  

JQ

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Jonny Quest Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2974	Post Options Post Reply Quote Jonny Quest Report Post Thanks(0) Quote Reply Topic: Engine won't start Posted: August-14-2015 at 1:07am
	ProTech is an engine management system that PCM developed in the early 90's. ProTech came on fuel injected engines and carburetor engines. The ProTech system controlled the spark / timing advance and monitored the engine for oil pressure and temperature. A ProTech engine does not have a traditional distributor. If your engine has the spark plug wires running to the rear of the engine into 4 rectangular "coil packs" then you have the ProTech system. The ProTech system used a "trigger" or crankshaft position sensor that is located in the spot normally occupied by the distributor. When the ProTech system fails (and it will eventually fail), you can replace the system with a traditional distributor. Do a search here and you will find plenty of info about the ProTech retro-fit. If you have a voltmeter, you may want to test your starter switch. The switch is located at the rear of the engine. Follow the fat red wire from the starter back to the switch. The picture below shows how the switch is wired: You should have power to the "S" terminal when the key is turned to the "start" position. If not, you may have a bad starter switch or even a bay key switch. JQ
	Current 2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum

willok Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: August-12-2015 Location: France Status: Offline Points: 4	Post Options Post Reply Quote willok Report Post Thanks(0) Quote Reply Posted: August-13-2015 at 6:00am
	Thank you for your answer Jonny Quest. When I say that it won't start, it doesn't make any noise at all, not even the noise of the starter engaging. That is why I thougt that it could exist a piece that won't allow the engine to start when it's too hot.

willok Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: August-12-2015 Location: France Status: Offline Points: 4	Post Options Post Reply Quote willok Report Post Thanks(0) Quote Reply Posted: August-13-2015 at 5:55am
	The engine doesn't cut out when driving and maintains itself at 160 °F approximately. But when i leave the boat for two or three hours under the sun, the temperature goes up to 190/210 °F, and at this temperature, the engine doesn't start. I dont think that the coil packs are getting hot... What is a protec set-up ? I bought the boat not long ago and I'm not really an expert yet.. Can it be linked to the calorstat ? Thank you in advance for you answers

Jonny Quest Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2974	Post Options Post Reply Quote Jonny Quest Report Post Thanks(0) Quote Reply Posted: August-12-2015 at 7:15pm
	What does "too hot" mean? If you are having to cool the engine DOWN to 160 degrees, then you have problems. The warmest thermostat that you should be running is 160 degrees and if the engine is running hotter than that, you should be looking at other cooling system problems. If your system has the ProTech "ticking time-bomb", then a too hot engine could easily adversely impact the ProTech coil packs. I've not heard that the ProTech system shuts off power to the starter or related systems. When you say "nothing happens" what does that mean? Does the starter engage and turn the engine, but that the engine won't catch and start? Or does that mean that the the system acts like there is no battery hooked up to the starter? Does the starter solenoid engage? Perhaps a few more details may help us diagnose the problem. JQ
	Current 2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum

JPASS Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: June-17-2013 Location: Orlando Status: Offline Points: 2283	Post Options Post Reply Quote JPASS Report Post Thanks(0) Quote Reply Posted: August-12-2015 at 8:35am
	Does the engine cut out when driving it or does it run fine, then you shut it down and she won't start? Do you have the protec set-up on this boat? Coil or coil packs getting hot when she won't start? What is the temp when she no longer starts?
	'92 Correctcraft Ski Nautique

willok Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: August-12-2015 Location: France Status: Offline Points: 4	Post Options Post Reply Quote willok Report Post Thanks(0) Quote Reply Posted: August-12-2015 at 6:48am
	Hi everyone, I have a Correct Craft Ski Nautique from 1991 and it seems that my engine (PCM) won't start when it's too hot. When I turn the key, nothing happens. I have to open the motorbox to cool the engine and when the temperature is at 160 °F, the engine will start. Do some Correct Craft have an alarm that does not allow the engine to start when it's too hot ? Thank you for your answers !

Engine won't start

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