How to do an engine assessment on my wifes 81A?

[Talkwrench]

I too think that sounds normal. Yes do a compression check as you stated, attach a vacuum gauge as well. If you haven't seen the oil in it yet then drop it. Reliability as stated above, Lawrie has done a few miles and you will see his issues where minor, he was even towing. Silly things can still happen, I rebuilt my trans only to have a bearing fail a few months later pfft what do you do ??!