Ford Buzz Coil Wiring/ How much resistance

[Ray Cardoza]

At the swapmeet last week I bought a model t coil and I forgot which post is +
- and the sparkplug. I also would like to know how much resistance it should have. I think it has a bad secondary or primary coil should I also have a condensor in line or does the coil have one built in. Does any one have a wiring diagram they can post for me. Thanks

[BobRR]

Ray the top side and bottom posts are for the battery and the lower side post is the plug.It is best to alternate the battery connection helps the points last longer?There is a condenser inside .BobRR

[Dick Graybill]

Go to Harrys home page at bottom click ignitions and buzz coils .Dick.

[Ray Cardoza]

Like this?
http://albums.photo.epson.com/j/View...041&p=73139492

[Ray Cardoza]

Thanks guys

[BobRR]

Ray first clean the points and all the spots the screws and nuts make contact. I have found that most times that it is a corroded contact that stops these from working.BobRR

[Ray Cardoza]

Will do. I spent most of this morning cleaning the points up. One side was badly pitted. I'll clean the contact screws tommorow. Thanks for the cleaning tip

[BobRR]

Ray make sure and ground the spark so it doesnt try and arc inside.When testing.BobRR

[Ray Cardoza]

Will do.

[PaulGray]

Ray- The secondary coil should show 3-4k ohms. The primary should show 0.2-4 ohms. The condenser sits on the bottom of the coil opposite the HT leadout. It is about 4" long x 1.2 x .5" If you replace it, make sure it is rated at 0.2-0.4 microfarad at 400-600 working volts. Do not use electrolytic caps as they will fail. A good modern condenser for a lawnmower or older car will work AOK. I have rebuilt ~60 of the darn things over the years. Very important is that the moveable contact have a bit of play- that allows the field to build up before it snaps open. The model T ford club sells an excellent book on the subject of coil rebuilds.

[Ray Cardoza]

Ok. I'll have to go get a condensor because this one oddly enough doesnt have the condensor in it dont know why but when I poked around in it there wasnt any condsnsor sitting in there.

[Doug Kimball]

Ray,
The condenser is usually separated from coil by a glass insulator. The condeser looks kind of like a folded wad of aluminum foil about 3"long with thin wires connecting it.

[Ray Cardoza]

Ok. Darn I'll have to get a new one the original is bad. I gues I should have looked closer

[BWegher]

Almost all of the original Ford coil condensers have failed by now. Most fail OPEN.
So the simplest fix is to attach a modern condenser on the outside, near the base of the points. One lead to each side, polarity does not matter.
That will fix almost every Ford buzz coil.

[Ray Cardoza]

Thanks I'll get a new one and see what goes down with it.

[Bill Miller]

What is the proper way to hook up the condenser on the outside of the
t-coil?
Thanks,Bill

[Ray Cardoza]

Good question I dont know but I know someone else has to know how it goes.

[BobRR]

Dont forget the Archives BobRR

[Ray Cardoza]

Thanks for reminding me I forgot about those ones