[Z-linkCobra]

Im with Joyridin' on that one. The alt. should be hot after you have been driving. The temp will depend on how much load you have on it i.e. stereo, fans etc. Staying hot after being shut off sounds like an internal short to me as well.Make sure your alt. is grounded well. Just because its grounded to the motor does not mean its grounded internlay to the case...Ive had that happen in the past.

As far as having no power at anything after you replaced that main fuse...thats interesting. Start at the begining...at the battery and work your way out from there.

If you didnt live so far away i would offer to help...lol. I like wiring.