Hey Z people, I just put in a new altinator and regulator (cause the last one wasn't working) on my 72 240 and it worked just fine for a few weeks.... but.... now it seems to not work when it gets cold (which is only at night cause I live in California :laugh: ) as soon as it heats up the altinator starts working again. I know it works because of the amp meter. When it works amp meter is in the + ... not working -

I checked the main ground and it seems to be solid. Any suggestions?

Thanks, Matt-

could be a bad battery(?)... my alternator was doing that occasionally but it was worse than your case.. i replaced my alternator and it was all smooth sailing from there. sooo, sorry not to give you any false hope that i know what's happening, but maybe you should take your alt and battery to your local autozone and get them checked..