First of all, you probably need a new chain. If you broke a chain 4 times, you've probably stressed, twisted, or otherwise damaged a number of links, and will continue to experience more breakage. Also, if you didn't properly repair the damage with either a new closing pin, or master link, your repair is likely to fail.
When you're ready to replace the chain, hang both chains adjacent to each other, and let them stretch out under their own weight. If the old chain is more than 1/2" longer for the same number of links, there's a good chance that the chainring, (and possibly the cassette) is toast.
Another check is to install the chain, and lift it away from the ring at the 3 o'clock position (front). The top and bottom sections will slide forward as you do so. If you can lift the chain clear of the teeth, either the chain or chainring or both are shot. If this happens with a new chain, it's definitely a dead chainring.
Next step is to deal with the chain suck which is your other problem. If new chain and (maybe) chainring cure it, so much the better. otherwise consider changing to a heavy wet chain oil, which will keep water and silt out of the chain, keeping it supple and preventing chain suck.
When you're ready to replace the chain, hang both chains adjacent to each other, and let them stretch out under their own weight. If the old chain is more than 1/2" longer for the same number of links, there's a good chance that the chainring, (and possibly the cassette) is toast.
Another check is to install the chain, and lift it away from the ring at the 3 o'clock position (front). The top and bottom sections will slide forward as you do so. If you can lift the chain clear of the teeth, either the chain or chainring or both are shot. If this happens with a new chain, it's definitely a dead chainring.
Next step is to deal with the chain suck which is your other problem. If new chain and (maybe) chainring cure it, so much the better. otherwise consider changing to a heavy wet chain oil, which will keep water and silt out of the chain, keeping it supple and preventing chain suck.
