What a great website. I made reference to a 9 month old thread, and immediately got feedback. Twice before I have also been able to fix problems that were beyond my skill level, thanks to other members.
With regard to the Mahindra 2015 and 2615 glow plug conversion, I was able to pull up Mahindra Parts Information Bulletin # 15-E/08/2005 which gives information and pictures of the kits which convert these tractors from a 3second to 10 second glow cycle. You basically get a new timer, glow plugs, and what looks like a short(approx. 5") wiring harness with 1 or 2 plugs on each end. I assume the old existing plugs connected to the tractor wiring do not match the plug recepticles or pins on the new timers, and this adapter/harnesss allows you to make the connection. This is what I am not sure of, and was hoping someone could clarify.
The suggestion of repeatedly turning on the key to repeat the 3 second glow cycle to get more heat, doesn't seem to work with my tractor. After the first 3 second glow, it won't immediately give you another 3 seconds if you turn the key off and on. I think I need a timer and plugs anyway. The timer seems to be really inconsistent, and when I removed the plugs and hooked jumper cables directly to them, two do nothing and the third only gets warm after 30 seconds. Maybe the timer burned them up? Any input would be appreciated. Thanks again.