For Chrysler 318 360 owners:
If you've messed with these things (and if you haven't, you may yet) then it's important to understand how these "swivel elbows" work. Between the two sections are O-rings that "supposedly" keep the water out. If they don't, water runs down and enters your last cylinder, which is not good.
If you're not a moron like me, you'll read and follow the instructions that come with new parts. To wit: Remove (with acetone) the primer at the O-ring seats before assembling. Since I stupidly did not, the O-rings started leaking after ten hours or so, and I was right back in the same mess! But if rust overtakes an old O-ring, then it will leak as well. Had that problem, too. The solution to that is to epoxy the whole mess together.
Not wanting another leak, I made up a pressure testing rig as shown. The assembly is filled to the top with windshield wiper fluid (thin and blue for identifying leaks). Next, 15 psi of air pressure is applied. At the lower drain (an 1/8 pipe fitting at the bottom of the elbow, where exhaust comes out) I stuffed a white paper napkin. No blue color appeared after an hour, so it's ready to re-install.
Jeff
PS: The rubber plug in the lower photo plugs the exhaust opening. This test setup is available to anyone who wants to borrow it.
Fastjeff attached the following image(s):
I'm STILL waiting for my bailout!
