1984 140 johnson sensor coil

[fast525]

Does anyone know where I can purchase a sensor coil ? I performed all the manuals test on mine and it tested faulty .

 

[rickdb1boat]

Re: 1984 140 johnson sensor coil

JHM,<br />Try Here:<br /><br /> web page

 

[Mumblerone]

Re: 1984 140 johnson sensor coil

www.theoutboardwizard.com Great site and people to do business with...10% discount on OMC parts and they'll probably have it in stock! The wizards name is Ralph.

 

[fast525]

Re: 1984 140 johnson sensor coil

Alright guys ,I'm beating my head against the wall with this 140 . Here's the rundown ;model# J140TLRCD 1984 140 , the top two cyls. are'nt firing . I thought power pack so I swapped them , no dice . Had an extra sensor coil (good) so I replaced it . Nope . replaced charge coil ,(I have a complete motor w/ a bad lower unit thus the extra parts)and that did'nt work . Would the timer base cause just the top two cyls. to not fire ? I am at a loss here .

 

[fast525]

Re: 1984 140 johnson sensor coil

^

 

[Joe Reeves]

Re: 1984 140 johnson sensor coil

JHM..... Are you saying that you have no spark on the two top cylinders, or that you simply have no response on those cylinders?<br /><br />There are two sensors, one fires cyls 1 & 3, the other fires 2 & 4. There is no way a faulty sensor can affect cylinders 1 & 2 (the two top cylinders).<br /><br />That engine (with the spark plugs removed) should have a strong blue flame on all cylinders at cranking speed that will jump a 7/16" gap. Does that spark exist?<br /><br />If you have spark, I would suspect that the top carburetor is fouled and needs removing, cleaning, and rebuilding.

 

[fast525]

Re: 1984 140 johnson sensor coil

Thanks Joe , There is 'nt any spark . I'm using a spark tester and getting a good spark on the bottom two just not getting anything on the top two .

 

[clanton]

Re: 1984 140 johnson sensor coil

Odd that 1/2 would misfire and 3/4 would fire. You sure the wires are in the correct place. This engine has a system that fires the left bank and the right bank, the only connection between the 2 is the kill wire. What happens when you disconnect the kill wire between the 2 packs?

 

[fast525]

Re: 1984 140 johnson sensor coil

I'll check that first thing in the morning . My wife says I can't play with my toys anymore tonight . As soon as I try it I'll get back and let you guys know . If you can think of anything else that I might can try let me know . We actually have managed to get all five kids out of the house for a whole night , so my wife wants to spend the night with me and enjoy not hearing MOM !!! every two minutes . Have a good evening guys. And thanks again , Jeff

 

[fast525]

Re: 1984 140 johnson sensor coil

I unplugged the kill wire and tried it and still got the same thing . I can unplug the port side powerpack and the bottom two cyls. stop firing,so I have it isolated to the starboard side at least , but after switching power packs it still does the same thing so I know it's not the powerpack . I don't have the right setup(multimeter) to do all the test in the manual , so basically all I can do is resistance test, no peak output . I have sperry digital and analog multimeter so if theres something I can try with them that you know of please let me know .

 

[clanton]

Re: 1984 140 johnson sensor coil

If you can disconnect the one pack and the bottom 2 cylinders stop firing, you have a wire/s in wrong place, one pack should fire port bank or stb bank. The pack on the stb side should fire the stb cylinders 1 and 3. The port pack fires the port cylinders 2 and 4. Check the wires from pack to coil.

 

[fast525]

Re: 1984 140 johnson sensor coil

what wires ? The coil wires are still in a wire loom and the only wires that I can see that might could be swapped are the two yellow wires from the stator to the terminal block and according to the wiring diagram I've got them on correctly . Am I misunderstanding what your saying Clanton ? Thanks for your patience , Jeff

 

[clanton]

Re: 1984 140 johnson sensor coil

You have green coils with one orange and one black wire, or black coil no wires, only connector for spark plug wire and primary coil wire?

 

[fast525]

Re: 1984 140 johnson sensor coil

orange primary , black ground , black coil

 

[clanton]

Re: 1984 140 johnson sensor coil

You should have a pale green ignition coil with one black wire, one orange wire, and a termial for a sparkplug wire. The orange wires from cylinder 1 and 3 which are on the stb side of engine must go to the power pack on stb side of engine, the number one cylinder coil orange wire should connect to the power pack connector pin that has orange/bluestripe wire. The port side same, except coil wires connect to port side pack, and cylinder number 2 connects to pack connector pin with orange/bluestripe. If the wires have not been cut and spliced, the problem is in the connector that connects coil to power pack. Check the pins in the coil to power pack connectors.

 

[clanton]

Re: 1984 140 johnson sensor coil

Black coils wired same as green coils, except black coil has grounding strap instead of wire. You can e-mail me clanton@atlantic.net, but you must post final repair on Iboats.

 

[fast525]

Re: 1984 140 johnson sensor coil

Thanks Clanton , Your gonna love this , the pin on the coil to pp connector for the top coil was bent so it was'nt going into its' socket on the starboard side . straightend it out and wammo we have cotact . I have got to remember the basic K.I.S.S. method (keep it simple stupid). Done a continuance test on each side of the connection , which is what I should have done four days ago . Would'nt have thought of it until you said it might be the pin connection . Thanks a million. Maybe I can go run it Monday .

 

[Hooty]

Re: 1984 140 johnson sensor coil

clanton is tha man!<br /><br />c/6<br /><br />Hooty