New here w/ Ford 861

[Soundguy]

are yuo saying that you are getting spark fromt he coil secondary over to one of the primary contacts on the coil?

 

[jeff pk]

Just when I pulled the plug wires from the cap and sparked them through the open connection. Then I noticed light sparking on the coil from the secondary connection to the long ignition wire that runs to the terminal block

 

[Soundguy]

it should only do that if there is no other more convienient path to ground.

check for cracks inthe coil top and or carbon tracking.

 

[jeff pk]

Yes, it looks like there might be some cracks around the BAT terminal. Will replace the coil. Could this cause the surges after running for an hour?

 

[Soundguy]

if the coil is overheating and cracking.. could be thermally breaking down.

if she is 12v.. get a napa ic14sb and use no resistors..

 

[jeff pk]

6volts. I like original---though I'm going to spend an extra $10 and get an oil-filled coil. Don't know if it really matters...

Thanks.

 

[Soundguy]

it does.. oil potted coils exhibit superior heat disipation characteristics.

 

[jeff pk]

Soundguy, posted this on that other board:


Bought a new coil and want to be sure I connect it properly. It's going on a 1957 6v 860-positive ground. The old coil is marked BAT and DIST; new is marked - and +. Which terminal goes where? + to dist, or to battery????

My guess is negitive goes to BAT and positive to dist... Just want to be sure.

 

[Soundguy]

match coil polarity to battery polarity.

if bat + is on chassis.. then + on coil goes to distribuitor, thus points.. thus ground.. which is what chassis is common to.

 

[jeff pk]

Soundguy, will this early 2000 PTO cover match up to my 57 860 PTO cover? The one on the tractor has a messed up (loose) lever and I want to sap these out if possible. Outside looks the same, but I haven't taken off the cover to check if the inside is the same and thought you might know. Don't know exact year of the 2000---just said it's "early".