1970FuryConv
Old Man with a Hat
I have a 1973 Dodge Monaco coupe, 360 V-8, 727 trans, 5 prong ECU with dual ballast resistor (IOW, ORIGINAL IGNITION SET UP). I have tried 2 different dual ballast resistors and replaced my original distributor with a rebuilt unit from Halifax hops.
My problem is that when the engine is cold, i.e. sat overnight, the engine doesn’t start when I turn the key to the start position. It only starts, as I release the key from start to run. By contrast, when the engine is hot, the car starts instantly in start position. Either way, the car runs excellent as soon as it started. It’s a pleasure to drive.
Ignition Switch: battery voltage going into the ignition switch is 12.45 V. Cold resting voltage at the battery itself is 12.57 V, so there’s almost no loss through the bulkhead connector. By contrast, when the key is turned to START, the brown start wire has a voltage of 10.9 V at the ignition switch which yields of voltage of 10.6 V at the ballast resistor and coil positive during cold start. (These voltage readings increase to 11.2 when the engine is warm)
My question is: has anyone experienced a tilt steering column ignition switch performing poorly when the engine is cold and perfectly once some current has been flowing through? Dirty Contacts?
As I understand it the tilt columns are made by Saginaw, so they are an adapted GM product.
My 2nd question is: what is the correct Delco part number for this ignition switch or is it a Mopar part number?
Thanks. All help appreciated.
Ignition Switch
Tilt Column
My problem is that when the engine is cold, i.e. sat overnight, the engine doesn’t start when I turn the key to the start position. It only starts, as I release the key from start to run. By contrast, when the engine is hot, the car starts instantly in start position. Either way, the car runs excellent as soon as it started. It’s a pleasure to drive.
Ignition Switch: battery voltage going into the ignition switch is 12.45 V. Cold resting voltage at the battery itself is 12.57 V, so there’s almost no loss through the bulkhead connector. By contrast, when the key is turned to START, the brown start wire has a voltage of 10.9 V at the ignition switch which yields of voltage of 10.6 V at the ballast resistor and coil positive during cold start. (These voltage readings increase to 11.2 when the engine is warm)
My question is: has anyone experienced a tilt steering column ignition switch performing poorly when the engine is cold and perfectly once some current has been flowing through? Dirty Contacts?
As I understand it the tilt columns are made by Saginaw, so they are an adapted GM product.
My 2nd question is: what is the correct Delco part number for this ignition switch or is it a Mopar part number?
Thanks. All help appreciated.
Ignition Switch
Tilt Column