LM317T Voltage Regulator with Pass Transistor

Direct link to Voltage Regulator - mercedessource.com You may be surprised to see what Kent found was the cause of the starting problem he was having on his 1990 190E 2.6. The car would start and then quit. Or it would start and round weak and rough for a minute before coming to live. It would also idle too low during cold startup. The problem turned out to be a simple and inexpensive fix. This would apply to the 190E, 300E, 300CE, 300TE and other gasoline engined Mercedes during that same period.



http://www.youtube.com/watch?v=4sLoOpBaySU&hl=en

I built a "field" ballast for the generator in my 1963 Ford Galaxie so I can control the constant overcharging problem I had with that car. When I took out the bench seat and put in bucket seats I had this nice big space between the seats. So I built a console with my CB, scanner, stereo and alarm system in it, I also had a voltmeter in the console that I could monitor and if the battery started to overcharge, I just flipped the switch to put the ballast in the circuit. The "ballast" was 2 20 watt resistors in paralell for a total of 10 ohms as I recall.(going from memory) The relay and the resistors was under the hood and it was controlled by a switch on the console.



http://www.youtube.com/watch?v=zsbdBW33-p8&hl=en