Haynes spec for ignition coil - is it wrong?
Posted: Sun Dec 08, 2013 6:46 pm
Sorry if this is the wrong forum...
My Haynes tells me the resistance on the secondary (HT) winding on the coil (transistorized system) should be 2.4 to 3.5 Ohms - is this right or a typo? Given the step-up ratio I would expect it to be higher.
Mine measures about 3075 Ohms, the primary (LT) is about 0.9 Ohms, which is a little bit higher than the 0.52 to 0.76 quoted, but values as low as that are subject to inaccuracies brought about by the connection between the meter and the item being tested, I get 0.2 Ohms when I connect the multimeter probes together, which would put the primary reading in range if subtracted from the initial reading.
My Haynes tells me the resistance on the secondary (HT) winding on the coil (transistorized system) should be 2.4 to 3.5 Ohms - is this right or a typo? Given the step-up ratio I would expect it to be higher.
Mine measures about 3075 Ohms, the primary (LT) is about 0.9 Ohms, which is a little bit higher than the 0.52 to 0.76 quoted, but values as low as that are subject to inaccuracies brought about by the connection between the meter and the item being tested, I get 0.2 Ohms when I connect the multimeter probes together, which would put the primary reading in range if subtracted from the initial reading.