engine dies!

[CharlesAFerg]

Recently it's been quite difficult every 10 or so times to start the car, repeated turns do nothing for about a minute or two.

Yet, today, while I was driving, i braked for a guy slowing down in front of me, engine dies - electrical is still on, but it died.

Restarted without an issue, happened again 30 seconds later.

I don't want to risk it, and I'm really curious now - because I just got new spark plugs, but I need a few more starter system parts.

Also, I think it is the alternator, but my m20 has s squealing belt right up front, and tightening the belt doesn't help. Sounds like squeaky bearings, and it's always there - but loudest when cold. Recently it's been silent, then after about 10 seconds of running the car it starts, but EXTRA loud.

I think the cold weather is getting to my car again.

suggestions?