HELP!!!NO Spark on my 440, I have 12v+ to the coil, HELP!!!!
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- alexander38
- Ultimate User
- Posts: 3179
- Joined: Sat Sep 27, 2008 6:48 am
do you have safety fuse's on your helm. my boat has them port and stbd. upper and lower. Blew one once and it took me awhile to remember they're there.
Carver 3607 ACMY 454's Merc's
10' Dinghy 6hp Merc.
La Dolce Vita
Let's hit the water !
http://s852.beta.photobucket.com/user/t ... 8/library/
10' Dinghy 6hp Merc.
La Dolce Vita
Let's hit the water !
http://s852.beta.photobucket.com/user/t ... 8/library/
I've checked all the fuses and looked for any wired in fusable links I could find.alexander38 wrote:do you have safety fuse's on your helm. my boat has them port and stbd. upper and lower. Blew one once and it took me awhile to remember they're there.
79' Carver 28' Mariner
I want another Trojan, preferably a Tri Cabin
I want another Trojan, preferably a Tri Cabin
- prowlersfish
- 2025 Gold Support
- Posts: 12725
- Joined: Sat Nov 05, 2005 6:56 pm
- Location: Lower Chesapeake Bay ,Va
You have low voltage at your resistor correct? Check the main harness plug at the engine . if thats OK check the voltage at the switch , If you have 12 volts at the switch and low voltage at the rester you have high resistance in the wiring or something shorted in the ignition system pulling it down.
you can try using a fused jumper wire from a good 12 volt source to the resistor and see if you get spark , if you do then you have a wiring issue .
again recheck the connector at the engine
you can try using a fused jumper wire from a good 12 volt source to the resistor and see if you get spark , if you do then you have a wiring issue .
again recheck the connector at the engine
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat

Well I figure out what it was.....
I ended up swapping the distributors out from the good motor to the bad motor. It started up immediately. I put the bad distributor in the good engine and it didn't start. So I went and ordered a new one and will install it today. Although I have not idea what could have broken in the other one.
I ended up swapping the distributors out from the good motor to the bad motor. It started up immediately. I put the bad distributor in the good engine and it didn't start. So I went and ordered a new one and will install it today. Although I have not idea what could have broken in the other one.
79' Carver 28' Mariner
I want another Trojan, preferably a Tri Cabin
I want another Trojan, preferably a Tri Cabin
- Stripermann2
- Ultimate User
- Posts: 3027
- Joined: Fri Jan 19, 2007 9:11 am
- Location: Solomon's Island, MD
Well I'm glad you figured it out. The pick-up probably went south.jwrape wrote:The distributors are only 5 years old. They should be in good shape.Stripermann2 wrote:Not concerned with the cap or rotor, without either of these two, you will still have spark from a coil.
Now, the reluctor, if equipped, is below the rotor and is held onto the shaft by one, sometimes two vertical roll pins. When this turns with the shaft, it creates and breaks the magnetic field with the pick-up, or magnet which is mounted on the breaker plate. Any problem here, you will not have seconday ignition output from the coil. It's also possible that you have a breaker plate issue which has moved the pick-up too far or out of alignment from the reluctor wheel.
Disconnetc only the tach wire from negative side of coil to eliminate any short to ground. The electronic box recieves signals from the timing, opening of the magnetic filed of the reluctor and pick-up and will pulse a ground to the coil. This produces the spark. You cannot ground the coil fast enough to produce the spark you need by grounding the wires from the negative side of the coil.
Does this help you understand the system a little better?
Jamie
1985 F-32 270 Crusaders
1988 Sea Ray 23 350 Merc.
Trojan. Enjoy the ride...
-I don't wanna hear anyone whine...Anymore!
-You might get there before me, but you still have to wait for me, for the fun to start!
1985 F-32 270 Crusaders
1988 Sea Ray 23 350 Merc.
Trojan. Enjoy the ride...
-I don't wanna hear anyone whine...Anymore!
-You might get there before me, but you still have to wait for me, for the fun to start!