Re: High Torque Fields Starter Conversion

Posted by Tim Cole On 2019/5/1 15:32:58

The Cadillacs are notorious for hot starting problems. Once they get hot they don't crank.

What isn't discussed is how to go about testing the system. Connect a voltmeter in parallel and through the cables and at each connection point. While cranking the engine. The maximum total voltage difference (or drop) in each side of the circuit should be less that .2 volts. This tests the cables and connections. I've seen Packards losing .75 volts through the engine block alone and there is a bulletin from Packard about this problem.

I never ran into a need to modify Packard starters, but I did run into a need for OEM specification cables. The cables being made up from the well regarded wiring houses make a big difference. Of course you can make your own using the proper cable and a solder pot, but in the end you will still be spending more than what they are building.

If you like tinkering voltage drop testing is a great way to "tune up" the starting system. Of course make sure you have a fully charged battery.