Dead coil but measured to be 100%?

hobieboy · Post by **hobieboy** » Sun Aug 20, 2006 4:22 pm

I'm puzzled - one of my coils is not working. When I use it, the car won't run.

Took it off. Measure the inductance, primary & secondary resistance. Everything is in spec.

How can a coil measures ok but doesn't work?

dooveeboy · Post by **dooveeboy** » Thu Aug 24, 2006 1:11 am

Hi Hobieboy
Yeah funny things coils.
Cans of oiled paper that borrow voltage
then give it back in a big rush ,,hehehe
Substitution being the best test process I feel.
Lots to do with back emf and magnetic flux ,
static tests can not effectivly show us health
or performance breakdown issues hidden inside.
Buy a pair of good high quality replacements and
you wont look back .
I've just fitted a new Bosch gt40rt to my car
to put my 8mm leads to goodwork

(got to love that good aussie Bosch gear.)

mentalvmaxrider · Post by **mentalvmaxrider** » Sun Feb 11, 2007 3:40 pm

yep.i get them at the shop alot on bikes.I had an acura integra that lost spark.coil tested good,but was dead.....