No spark 55 HP Evinrude triumph 1969

[sad boater]

Let me start by saying that the boat prior to a burnt connection to the stator it was running great. I was a mechanic of car and stuff but honestly boats confuse me a little.. I do have the repair manual but I don't own the tools needed for the tests. So what I have found was the stator short overloaded the rectifier and ignition coil causing cracks in both. My question is about the amplifier is there a way to test it with modern equipment? It is a 3 wire amplifier and I do have the 12v incoming voltage. I was able to do the ohm check for the stator I got 1.0 ohms and no sign of short to ground. Second question what else should I check? I'm kinda lost on this.....

Thanks for any help, the sad boater

 

[Crosbyman]

deleted

 

[sad boater]

Correction, amplifier has 4 wires. Any help would be appreciated. 1969 Evinrude 55 HP triumph

 

[Crosbyman]

post exact mdl ans ser#... if the kill circuit is not the cause the " amplifier" is suspect according to Chat...

this may.. help but if you have no tools to test ....shop time may be on the horizon. techs for 1969 engines are getting rare..and $$$$

 

[sad boater]

No this doesn't help it's a completely different system than the video shows. From what I can tell there is no kill switch circuit on my boat. Never has been. That was the first thing I searched for. The model number is 55973A serial number J11067. It ran before the stator wires burned up, bad connection. After that I found both my rectifier and ignition coil cracked. I'm assuming I fried everything. I replaced the rectifier and ignition coil. I get 12v to the amplifier but only 5v coming out going to the points. The attached file does give me a couple ideas to check. I did all the tests I could in the book. There is no signs of stator overheating or short. It has 1.1 ohms when I checked the two yellow wires and neither showed short to ground.

Thank you

 

[sad boater]

post exact mdl ans ser#... if the kill circuit is not the cause the " amplifier" is suspect according to Chat...

this may.. help but if you have no tools to test ....shop time may be on the horizon. techs for 1969 engines are getting rare..and $$$$

The only thing I can't check is the amplifier. It is available but cost is $400 not trying to throw $400 darts at y boat.....lol I was a diesel mechanic for 20 years but honestly that means nothing when I look at the electrical system on this boat motor.

 

[racerone]

Is there spark out of the coil?

 

[sad boater]

No. Not that I can tell. I did the test in the book and I have no visible spark from the coil. It is new as is the rectifier. I was really hoping that was all it would be. I'm not that lucky. It ran great when I had it out.... until it didn't.

 

[racerone]

The stator and rectifier are only part of the battery charging circuit.---Anti reversing spring checked?----Part # and source of coil?

 

[sad boater]

No I haven't pulled the flywheel off and checked anything underneath it. I was hoping to avoid that. Marineengine.com part number 0502882. The day the wires burnt it only started for a second then died. Still cranks just fine. The battery is new.

 

[Crosbyman]

wild guess again ( I admit not knowing your engine but yout mdl # shows it to operate with a break point)

reading other sources indicates that if you simply tap a quick GRD on the wire from the breaker point the"amplifier" should fire the ignition coil and you should
see spark. all the breaker does is provide ground pulses to fire the coil.


?? is this your engine......the main ignition coil should at least show a HV sent over to the distributor if plugs are to fire. It happears to be the main origin of high voltage.
if you don't see HV there I would work backwards. Pulling the FW may show something.

did you inspect and clean up all connections in the fat red connector ??

https://maxrules.com/graphics/omc/wiring/1969-OMC-55-Wiring.jpg

 

[Crosbyman]

see document