I rebuilt the heater tubes (that connect from the heater exchanges)
(Found this great site with most of the info - Thanks Jonathan!)
http://www.jonathanstiles.com/HeaterTubeRefurbish.htm
1. Cleaned and remove all the inside parts of the old tubes. They could contain asbestos - so I soaked the inside with water - then unscrew the tubes - and removed the inside parts (with care - follow what Jonathan shows on his site!)
You may be able to keep the inside metal tube if not rusted. I found it rusted and falling apart so I'll need to make some of those also.
2. purchased metal mesh, pipe insulation and foil tape from Lowes or Home Depot
and I ordered (4) rubber sleeves from cip1.com:
RUBBER SLEEVE BETWEEN BODY TUBE & HOSE
3. Rebuilt inner metal tube with mesh and foil tape.
I made this about 11" long and used the heater exchanger to know how large the diameter should be.
Also created (4) collars to be used on each end (to go under the rubber sleeves)
(I also cut the collars tube (see picture) - so they could be installed around the pipes easier.)
4. Wrapped the metal mesh tube with insulation (pipe insulation)
5. Put tubes back together and made sure they mounted ok.
6. I put the collars on first - then the rubber sleeve:
Now I hope all of that works!!!
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