The Ford Barn

daveymc29 · 07-01-2018, 08:52 PM

I have an alternator on my roadster that has what I had believed to be a static suppressor. That is what some really savvy people suggested it might be, but they weren't sure of that either. During my decent of the 8000 foot Sierra Nevada Range, back to near sea level in Tracy my roadster performed quite well, as it had also on the assault on the upslope of that very same pile of granite. Between Tracy and my home there is a long steady incline to about 1100 feet, + or - a car length. Just the thought of going up again seemed to put the car into rebellion and myself into shock, then panic. I made it to a side road that goes a bit farther, but means much less grade to pull and eventually got home, after a lot of sputtering and backfiring. I also noticed that the ammeter seemed to wiggle it's little arm at me whenever the engine ran amuck. Once home and rested I took the alternator off the car and took the suspicious device off the alternator for the first time since 1993. Looking closely it has the name "TRANSPO D710 6V on it. I suspect it may be something more like a regulator than a static suppressor.
Since the symptom seemed to be a gas problem I have immediately dismissed that thought, and am very suspicious of some electrical fault. Anyone able to disagree or even if you agree, give me your opinion? I have no concept of how to send pictures but said D 710 is a metal box(1 1/8 in. by 1 1/2 in by 1/2 inch deep) with a red wire and black wire coming out of it the red connected to the outgoing wire and the other going to a second post (ground?) on the alternator. The backside is shiny plastic and has a plastic male plug that holds two brass blades that when it is plugged onto the alternator make contact with two brass blades that I suspect mean it is an external regulator, possibly there to convert a 12V Alternator into a 6V. Is that a possibility? Maybe even a rectifier? Tomorrow I will install a spare alternator and test drive, but this has me guessing. I'd like to have it explained to me so I can laud my knowledge over both of my friends.

07-01-2018, 08:52 PM	#1
daveymc29 Senior Member Join Date: Sep 2010 Location: Danville, CA Posts: 1,554	"Ace Electrician" not! I have an alternator on my roadster that has what I had believed to be a static suppressor. That is what some really savvy people suggested it might be, but they weren't sure of that either. During my decent of the 8000 foot Sierra Nevada Range, back to near sea level in Tracy my roadster performed quite well, as it had also on the assault on the upslope of that very same pile of granite. Between Tracy and my home there is a long steady incline to about 1100 feet, + or - a car length. Just the thought of going up again seemed to put the car into rebellion and myself into shock, then panic. I made it to a side road that goes a bit farther, but means much less grade to pull and eventually got home, after a lot of sputtering and backfiring. I also noticed that the ammeter seemed to wiggle it's little arm at me whenever the engine ran amuck. Once home and rested I took the alternator off the car and took the suspicious device off the alternator for the first time since 1993. Looking closely it has the name "TRANSPO D710 6V on it. I suspect it may be something more like a regulator than a static suppressor. Since the symptom seemed to be a gas problem I have immediately dismissed that thought, and am very suspicious of some electrical fault. Anyone able to disagree or even if you agree, give me your opinion? I have no concept of how to send pictures but said D 710 is a metal box(1 1/8 in. by 1 1/2 in by 1/2 inch deep) with a red wire and black wire coming out of it the red connected to the outgoing wire and the other going to a second post (ground?) on the alternator. The backside is shiny plastic and has a plastic male plug that holds two brass blades that when it is plugged onto the alternator make contact with two brass blades that I suspect mean it is an external regulator, possibly there to convert a 12V Alternator into a 6V. Is that a possibility? Maybe even a rectifier? Tomorrow I will install a spare alternator and test drive, but this has me guessing. I'd like to have it explained to me so I can laud my knowledge over both of my friends. Last edited by daveymc29; 07-01-2018 at 08:58 PM.