Re: Multiple problems. Ticking ( probably lifter ) and screeching noise with low battery.
The loud belt screeching at startup is probably caused by the heavy load from the alternator, which is working hard to try and charge the battery back up from the heavy current load you just created by using the starter. After a minute or two, the load on the alternator decreases and the screeching diminishes somewhat. Still, as stated, you've got a bad belt or tensioner.........
For the ticking noise, I would maybe try some engine flush. This usually goes into oil, then you run engine for a bit (like 15 minutes or so), then drain oil, changing filter as well. This would be the cheapest and easiest thing to try, and I know it works. It fixed a sticking lifter I had in a '88 Lincoln LSC Mark VII and I got another 40,000 miles out of that baby.
Dave F. in Rhode Island
'68 Camaro SS Accel DFI 454 (SOLD - I'm a boring Corvette owner now)
Bought my first big-block Chevy in 1970