After reading all of the 'nuts' comments, I thought, well. I need to check my
nuts,..........sure enough, .... I had loose nuts too......
Put a dab of Locktite on each one, & am hoping for the best......
Since this was mentioned, I started looking at all of the other hardware & other parts on the clamshell, & all look good & tight.......
Note: Some of the vent fittings were just finger tight, & I never even thought of looking at them until I read this forum....
.....This WAS a good find, so all of you need to check yours.....
Casper