Most of the old 6v regulators were adjustable- were stock set to put out about 7.5 volts to charge 6volt batteries close to discharged, run at about 6.2-6.8 volts charged battery. IHC and VWs needing cold weather start would get a 8volt battery and the voltage regulator reset to peak about 8.5/9.2 volts and run about nominal 7.8/8.2 volts. Unset regulators that had been peaking at 7.5 volts usually maintained at about the 7.5 to 8.0 voltage- battery could 1/2 discharge over time but usually started vehicle. A 12volt trickle charger-2amp or so- once a month in winter could maintain full battery charge a long time. Old VW bus got the battery only one winter, 2 trickles over winter and VR reset the next spring to run fine (or as good as a 1200 engine could run) the next winter. Shop that readjusted regulator said they did a few tractors a year same way, were aware of procedure to help tractors start in Wisconsin winters. RN.
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Today's Featured Article - Tuning-Up Your Tractor: Secondary Ignition Wires and Distributor - by Curtis Von Fange. In our last episode we spent the entire day checking out the spark plugs. Is that efficency? Actually, it took more time to explain than it really did to do the inspection. At any rate we decided that a compression test was in order so we could verify the internal engine status. That way we wouldn't buy any tune up parts until we were sure that the engine was in reasonable mechanical condition. Our tests showed a fictional compression reading of 85, 80, 82 and 86 psi. That is well within a
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