I purchased a new BOSCH coil because the secondary resistance was high on my original coil.

The new coil is further out of spec than the original !!
Doesn't this specification limit the power through the distributor and to the plugs?

What, if anything, is getting cooked?

Bosch Coil - OLD, 1988 - (0 221 122 345)
-primary - across terminals 1 and 15 - 1.1 -1.3 ohm
(spec. 1.1 -1.3 ohm)
-secondary - across terminals 1 and high tension
(ignition cable) terminal - 12.18 kohm @ <68 F
(spec. 9.6 -11.6 kohm)

Bosch Coil - NEW, 2010 - (00059) (0 221 122 345)
-primary - across terminals 1 and 15 - 1.1 ohm
(spec. 1.1 -1.3 ohm)
-secondary - across terminals 1 and high tension
(ignition cable) terminal - 13.5 kohm @ 68 F
(spec. 9.6 -11.6 kohm)

1988 244 DL

After some inquires to someone that does stock car racing and talking to Bosch, the resistance specifications for the coil do not mean much.

Bosch's response is that if the car runs the coil must me okay. The specifications they list for the vehicle do not match the coil they sell for it.

There is something called a "spark plug tester" that will measure how well the spark plug fires and that is the end result desired. No one knows how this impacts the rest of the electrical components like battery, ignition wires and distributor.

So ... now I have an unnecessary new coil.

1988 244 DL

High,


I would say that the effect of a cheap conductor would cause the situation you are describing. That the windings in themselves are defective only because they are made from impurer and impurer copper as the time passes, as the effect of globalization eviscerates any scope of satiation, for every cheap thing, as it ages, becomes cheaper.


Goatman

Let’s try windings of pure silver next time, OK?