Out with the old, in with the older, SS exchangers replacing '75 crapola Options

[rjames]

Finally got the old exchangers off. What a gigantic PITA. I figured they'd fall right off after removing the exhaust stud bolts, but noooooooo. It took about 1 hour of coaxing per side (and a ton of cursing) before they let go.

Here's the old: (IMG:style_emoticons/default/icon8.gif) (IMG:style_emoticons/default/barf.gif)

[rjames]

Those HEs were a nice snag. They look like the last version with stainless flanges at the muffler. The earlier ones were all stainless except for those flanges....

Yup, did the magnet test, and it didn't stick to any part of those babys! (IMG:style_emoticons/default/smilie_pokal.gif)

And thanks for the link, explains it all perfectly!

A couple of other questions:

1) Should I attempt to replace the exhaust studs, or just leave them alone? I am a little afraid to try and remove them for fear of breaking one off. I already have one that is stripped that I'll have to replace- a job I'm not looking forward to.

2) How much, if any, of the j-tubes/ductwork should I attach to the exchangers before installing? I was able to pull my old ones out with everything attached (thankfully because it was all rusted together), but it wasn't easy.

3) How tight should the exhaust stud nuts be- I thought I read somewhere that it should be tighted to 25lbs?

Thanks!