6BTA Heat Exchanger End Cap

[John]

Getting ready to replace a slightly leaking end cap on HX. New cap and gasket purchased from Seaboard. After cleaning edge of HX tube, and a light sanding with 1000 grit wet/dry, should I spread a VERY THIN coat of some gasket sealer on the edge of the tube before installing gasket and cap? Some non-permanent sealer from Permatex or Loctite?

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[Stephen Oliver]

I was a bit more brutal and cleaned the end caps and the HX ends up with a wire wheel on a drill.. didnt seem to harm them, made sure they were cleaned and then assembled using SBMar gaskets which are really soft so seal all the imperfections well. No leaks and no sealant used.

Steve

[Author]

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