Help needed with sb 318

Me again Margaret.

Time for an update. Beast has pretty much been running without incident until this year. First day in use......ran....but something was not right.....had no torque and would not pull a load. She eventually died.....and would not start. Ran battery down trying. Then more issues piled up. Awkward as we had 400 bales on the ground.

Next day we went looking for source of trouble. What we quickly found out was clips on distributor cap were not clipped down. It was just floating on distributor loose. How clips came undone and why it ran at all both beyond me. But clipped it down and back to normal. Except now the alternator is not charging. That comes off and goes in for test and maybe replacement.

But all that is not why I'm back. The entire time I've had her and been running her, if she dies when hot, she will not start again until engine cools down. I sense vapor lock. To prevent a hard (or no) hot start, I have read where the Carter BBD has some type of vapor vent that has to be "to specification", whatever that is. The service manual I've read does not say how. Or if it does, I've not found it.

Is this vapor vent problem an easy adjustment on an early 70s era Carter BBD? If so, how?