Forum Discussion
OBSPowerstroke
Apr 10, 2017Explorer
Thought I'd give you all a progress update. Over the weekend I replaced the melted tank sensor wiring harness and verified I now have working tank sensors again. I also rebuilt the underbelly tray for the fresh water tank.
Knowing that it's inevitable water will leak into the underbelly due to all the holes in the frame around the fresh water tank, I decided to use foil insulation secured with headliner glue and waterproof aluminum tape instead of batt fiberglass. I also picked up an EPDM truck canopy gasket that I'll use to seal up the underbelly instead of caulking to make removal of the underbelly easier the next time around should anything in there need to be serviced. All the materials used won't be impacted by any water leaking in, so that means even though foil insulation doesn't have that much R-value, it's still going to be much more effective than the soaked fiberglass that was in there. I haven't reinstalled the underbelly yet, as I'm also installing some new auxiliary backup lights and need to run the wiring through this area. Below is a pic of the new underbelly next to the old one.

Hope everyone had a great weekend!
Knowing that it's inevitable water will leak into the underbelly due to all the holes in the frame around the fresh water tank, I decided to use foil insulation secured with headliner glue and waterproof aluminum tape instead of batt fiberglass. I also picked up an EPDM truck canopy gasket that I'll use to seal up the underbelly instead of caulking to make removal of the underbelly easier the next time around should anything in there need to be serviced. All the materials used won't be impacted by any water leaking in, so that means even though foil insulation doesn't have that much R-value, it's still going to be much more effective than the soaked fiberglass that was in there. I haven't reinstalled the underbelly yet, as I'm also installing some new auxiliary backup lights and need to run the wiring through this area. Below is a pic of the new underbelly next to the old one.

Hope everyone had a great weekend!
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