Hello, I am new to the forum, but it looks like there are quite a number of knowledgeable, helpful people here. The internet is such a great place to meet, I wish it had been around 60 years ago. Amazing technology! Anyway, to my problem: the problems started when I decided to replace a defective ignition switch on my 318 loader tractor. I got an aftermarket switch (Indak brand) off ebay. I had to take the seat off to enlarge the dash hole for the new switch, so I decided to replace the worn out seat as well. Had to wait to get the seat, so I took the seat mounts off to clean up and repaint. Also,decided to incorporate ROP when I put the seat mounts back. That thing gets a little scary on a 20% grade with a bucket of gravel. Went to start up a week after switch install and blew the main 20amp fuse...three times. Obviously, a problem. Long story shortened, the aftermarket switch is shorted to ground when in the run or start positions. Installed an OEM switch and it stopped blowing fuses.However, now the battery light just flashes when the key is turnedon, and the ignition is dead (oil light stays on.) I cleaned up a whole lot of corroded terminals, and when I initially put it back together, I was able to start up and run normally.....once. Turned it off and now short flash of battery light. I have bypassed (to check) the interlock switches, they all check out. Cleaned more corroded connections. PO had jumpered the seat switch, and, somewhere along the way, somebody put a starter improvement kit on it. Since the battery light flashes for a second, I am thinking the Time Delay Control Module or a broken wire somewhere in an interlock circuit. Problem is, it has run fine for years, so broken wire is not too likely. All I messed with was behind the dash to replace the ignition switch and the seat mount(including bypassed seat switch wire). Could the short have caused avoltage spike that fried some electronics? The ignition circuit comes up, but only momentarily. Any ideas? I have wiggled connections while the ignition is on....not even a flutter. Thanks for your anticipated input.