Discussion Starter · #1 ·
When I first got my 318 the ignition switch was acting up. I installed a new switch and it helped for a while, but the problem returned. I looked at the schematic and in the "run" position they have a 3 amp and 20 amp fuse feeding the tractor circuits. This seems like a lot of current to be passing thru the switch contacts. I installed a relay which has a contact rating of 30 amps. I installed a wired socket that matches the relay. Now the ignition switch "run" only activates the relay coil. One of the contacts of the relay connects to the 25 amp circuit breaker and the other contact connects to the 3amp and 20 amp fuse that used to connect to the ignition switch.