rottenlungs
Member
Hi. My usually reliable Elegant Thirsty Dinosaur (75 3500) has started misbehaving following a bit of a lay-up. It was off the road for about 9 months. Now, there is an intermittent fault with the ignition. Large hesitations occur. They are abrupt and the tachometer jumps down to zero and back up.
My diagnostic train of thought so far is this.
1) its not a fuel issue, as fuel delivery problems always come on progressively as one then the other carb runs out of fuel.
2) The tachometer jumps down to zero and back up. This behaviour supports my theory that that it is not a fuel problem and is a likely to be low tension issue rather than a high tension problem.
3) It seems to get worse as the car warms up - this can suggest a coil problem, right?
4) I have an accuspark electronic ignition module fitted. It is probably about 6000 kms (and 5 years) old. What is the reliability of them like?
5) I have wiggled all the low tension connections to the coil and the distributor with no obvious effect
I suspect a loose connection somewhere, however, it could be either the coil or the accuspark giving up the fight.
Its a suffix E RHD car. I`m struggling to understand the wiring diagram as to what fuses / circuits supply the low tension from the battery to the coil? Can anyone point me towards any circuitry I can follow to find the supply to the coil (I`m guessing from the ignition switch somewhere?)
Thanks
James
My diagnostic train of thought so far is this.
1) its not a fuel issue, as fuel delivery problems always come on progressively as one then the other carb runs out of fuel.
2) The tachometer jumps down to zero and back up. This behaviour supports my theory that that it is not a fuel problem and is a likely to be low tension issue rather than a high tension problem.
3) It seems to get worse as the car warms up - this can suggest a coil problem, right?
4) I have an accuspark electronic ignition module fitted. It is probably about 6000 kms (and 5 years) old. What is the reliability of them like?
5) I have wiggled all the low tension connections to the coil and the distributor with no obvious effect
I suspect a loose connection somewhere, however, it could be either the coil or the accuspark giving up the fight.
Its a suffix E RHD car. I`m struggling to understand the wiring diagram as to what fuses / circuits supply the low tension from the battery to the coil? Can anyone point me towards any circuitry I can follow to find the supply to the coil (I`m guessing from the ignition switch somewhere?)
Thanks
James