Plenum Repair, Solder? Braze? Weld? Epoxy? Magic? Options

[ctc911ctc]

I have been chasing a vacuum problem. Found 2 likely culprits so I started a new thread.

1. BOTH plenum support columns at the top are leaky. I just tried soldering and then brazing, both did not work. I am reluctant to weld because of the gage of the material and the skill of the welder......grin

2. The control shaft in the Throttle Body is leaking as well, is there any way to fix this without milling and new sleeves inserted?

Also, as luck would have it, my son cleaned and painted the unit PRIOR to me having time to test it........

Thank you,

CTC911CTC

[ctc911ctc]

*********UPDATE*******

Used fast set Marine Epoxy, chemically the same as JBWeld, after a few hours I tested the plenum and it held vacuum, also I pulled the control rod out of the Throttle body, put some white Lithium Grease on the shaft.

Seems to hold..... (IMG:style_emoticons/default/beerchug.gif)

After it sets firm (tomorrow) will try the pressure test.

[Mark Henry]

*********UPDATE*******

Used fast set Marine Epoxy, chemically the same as JBWeld, after a few hours I tested the plenum and it held vacuum, also I pulled the control rod out of the Throttle body, put some white Lithium Grease on the shaft.

Seems to hold..... (IMG:style_emoticons/default/beerchug.gif)

After it sets firm (tomorrow) will try the pressure test.

I welded a surge tank to my VW bug gas tank, no matter how hard I tried I couldn't stop all the leaks.
I used a quality marine epoxy and it sealed right up. Been in use about ten years now. They make fiberglass fuel tanks, I believe all underground tanks for gas stations are fiberglass.