Re: Jump Starting?
The starter spins much faster with a STRONG 12 volts. The engine will also get a stronger spark. Also a set of 12 volt jumpers are usually very small wire size. The heat you feel in these cables is like a resistor and causes a voltage drop so you don't get 12 volts any way. Solution,12 volt battery pack with a built in switch, no current to the cables until the switch is turned so you can hook it up to the starter and a good ground, turn the ignition switch on THEN turn the battery pack switch to spin the starter. Even with a low 6 volt battery there should be enough voltage to fire the coil as the coil volyage is not being pulled down by the starter. The engine will start with a crank, pushing by hand or coasting down a grade for the same reason, no voltage drop from the starter load. More fuel will also be pumped spinning the engine on 12 volts. You can also check the oil pressure spinning on 12 volts, mechanical gauge, remove the plugs and the oil pressure you see will be the oil pressure driveing downthe road. G.M.
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