dodgebomb Posted February 4, 2009 Report Posted February 4, 2009 I'm working on a 41 desoto into which someone put a later model Gyro-matic tranny. Now dont freak out on me, but I was considering a switch to 12 volts and was wondering if the electronic components on these (solenoids, governer etc.) will need or even accept those little reducers that are used on say, dash guages for the same thing. I'm not necessarily switching as I see nothing wrong with 6 volts, but if anyone has done this I'd like to know my options. Thanks. Quote
Don Coatney Posted February 4, 2009 Report Posted February 4, 2009 Contact George Asche (his phone number is in the links section) as I believe he can supply you with the 12 volt equivelents of your 6 volt coils. Quote
PatS.... Posted February 4, 2009 Report Posted February 4, 2009 The transmission electrics are run from the 6 volt coil. To run 12 volts, you need a ballast resistor to reduce coil voltage to the ignition, so just hook up the transmission electrics after the ballast resistor to continue running the transmission on 6 volts. I'm pretty sure it doesn't care whether it's positive or negative ground. Quote
dodgebomb Posted February 6, 2009 Author Report Posted February 6, 2009 thanks for the replies. on yhe matter of running a resistor from a 12v coil, what if I used one that has an internal resistor. Would that serve the same purpose? Quote
PatS.... Posted February 6, 2009 Report Posted February 6, 2009 As long as the transmission only gets 6 volts, I think you'll be OK. Quote
Don Coatney Posted February 6, 2009 Report Posted February 6, 2009 The transmission electrics are run from the 6 volt coil. To run 12 volts, you need a ballast resistor to reduce coil voltage to the ignition, so just hook up the transmission electrics after the ballast resistor to continue running the transmission on 6 volts. I'm pretty sure it doesn't care whether it's positive or negative ground. Pat; I dont think your suggestion is a good idea. A ballast resistor is designed for a small pre set amp load. I dont think it would work well with multiple functions. Quote
PatS.... Posted February 7, 2009 Report Posted February 7, 2009 Don; It is what I was going to try on my 49 M6. The coil is the source of power for the M6 transmission. so I though that's as good a place to start as any. It only gets momentary power, so may work just fine BUT, I haven't gotten to that point on mine to try it yet, so you may very well be correct. Here's the wiring diagram...coil is top left...there are other solutions for sure to allow 6 volts to power the M6. I suppose any keyed 6 volt source would work. It could also be that, like the starter, the M6 won't care about the momentary application of 12 volt either. Quote
dodgebomb Posted February 7, 2009 Author Report Posted February 7, 2009 setting aside the coil for a moment, wouldn't it be possible to use voltage reducers on those components of the m6? If so, which ones would they be? Quote
PatS.... Posted February 7, 2009 Report Posted February 7, 2009 setting aside the coil for a moment, wouldn't it be possible to use voltage reducers on those components of the m6? If so, which ones would they be? Everything runs from the coil so only one voltage reducer would be required at the beginning. Quote
dodgebomb Posted February 7, 2009 Author Report Posted February 7, 2009 ok, now were getting somewere. The voltage reducer would just run anywhere from between the coil and the trans. Got it thanks! Quote
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