Re: Super C iginition woes Part Deuce

Posted by John T on November 27, 2005 at 15:00:09 from (66.244.90.98):

In Reply to: Super C iginition woes Part Deuce posted by Tom Yaz on November 27, 2005 at 14:15:58:

Tom, from what you say, it appears theres voltage getting to and through the coil at least. I dont quite understand about that tightening the condensor down n if or when she sparked though. I wonder about a short in the points or its wiring or else the distributor isnt gettign a good ground??????? or maybe the poinst are closing tight??????? or theres not a good ground???

NOTE this assumes (from your talk of spark??)you for sure have good n sufficient voltage getting to the coils high input (NOT to distributor) terminal, if not, that can be the problem. I would feel safer in what I say below if all you said still holds true IF YOU HOT WIRED THE COIL (try that to be safe). Ifffffff she still acts the same, then proceed as below and remember THIS ASSUMES GOOD VOLTAGE TO THE COILS INPUT. YOU GOTTA HAVE SUFFICIENT VOLTAGE THERE FIRST!!!!!!!!! Theres not any external Ballast Resistoir is there???????? Whats the battery and coil voltages??????

Soooooooo, if theres good voltage to the coil:::

The wire from the coil to the distributor CAN NOT BE SHORTED TO THE DISTRIBUTOR there where it goes through that plastic thingy on the side you know !!!!!!!!! A cheap batery powered light continuity checker or an ohmmeter would test that so easyyyyyyyyyyyy.

I was really worrying about a short in the points assembly spring or in the condensor or it or the points wiring, but if you removed the condensor wire from the points that should have taken it completely out of the circuit, so it dont sound like a bad/shorted condensor is the problem for now at least. That would leave either a shorted points/spring assembly or a short eleswhere. IFFFFF the distributor and points frame end are gettign good grounds???????

Okay, when the points are closed (which they more often are) a test lamp or voltmeter on the low (to distributor) side of the coil (same electrically as on the points terminal) SHOULD NEVER GLOW AND/OR READ NEAR ZERO VOLTS (when points closed) cuz if the points are good n closed, that should have that location dead grounded. HOWEVER, if a test lamp or meter on the coils low side or points terminal NEVER GOES OUT AND/OR STAYS NEAR BATTERY VOLTAGE, the points arent closing down for good contact or the distributor plate isnt getitgn a good ground to the tractor. YOU SURE THE POINTS ARE CLOSNG TIGHT??????

A cheap simple test lamp on the coils low (to distributor) terminal MUST flash ON when the points are closed, but go OFF when they are closed, OR SHES NEVER GONNA FIRE.

Again, if it stays on n never goes OFF, points arent good or not closing or the dist or points arent grounded (are points mounted tight??) or the wires open from coil to points.........If its OFF n stays off (as engine is cranked n points open) the wiring from the coil to the points is shorted (maybe the pass thru stud),,,,,,,,,or the points are shorted,,,,,,,,or wiring to points or the condensor is shorted,,,,,,,,,or condensor is shorted.

Nowwwwwwww to see of the coil itslef is capable of sparking totally independant of any distributor or points etc problems,,,,,completely remove ALL wires from the coils low (to distributor) terminal,,,,,,,,,,,turn the ignition on,,,,,,,,have the coil wire removed from the distributor (leave coil end intact) and its bare end to within 1/8 inch of tractor steel,,,,,,, and use a lil jumper wire n screwdriver or metal probe etc to momentarily short then remove the lil terminal to and off frame ground,,,,,,,, EACH TIME IT WAS SHORTED TO GROUND N THEN REMOVED THE COIL WIRE SHOULD FIRE ???? Does it, if so the ignition switch n coil etc is good sooooooooooooooo you know the problem is in the points or distributor like a short or an open wire as described above.

Check the wires from coil to distributor and inside the distributor and the points for closing and for any shorts like the pass thru wiring stud or the points spring,,,,,,, then see if the problem is a test lamp on the coils low side stays on or off as shes cranked over,,,,,,,then test the coil as described above,,,,,,,,then based on the theory I laid on ya you ought to be able to figure out what the problem is.

Lemme know,,,,,,,,,thanks for the update, good luck n God Bless

John T

Replies:

• Re: Super C iginition woes Part Deuce Tom Yaz 17:37:42 11/27/05 (1)
  • Re: Super C iginition woes Part Deuce John T 20:05:23 11/27/05 (0)

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