Crazy thought, but will it work ?

[RangerRico]

I've about used up my last nerve here. I replaced the heater core in my truck a month or so back, it had sprung a leak. Prior to this, it rattled to beat all hell inside the plastic housing that covers it behind the glove box. When I removed the hoses under the hood, it basically fell out into the floorboard. The rubber gasket that the inlet/outlet nipples on the core sticks through the firewall had completely deteriorated and appears that is all that suspends the core on the interior. I cut up some old rubber hosing to "Obama-rig" a new rubber gasket, installed the new core and put all interior parts back on.

Still rattled.... No where could I find any mounting strap or anything that would hold it secure in its mounting area, and I have shimmed and crammed different things in the housing to try and stabilize it to keep from rattling, all without success. It gets hotter than hadeas, so anykind of flammable or meltable material is out of the question.

I'm down to one last thought. WOULD, and I use the word WOULD cautiously, it hurt anything that anybody knows of, if I crammed a double helping of either that yellow or pink fiberglass home insulation material all up inside there to cushion and stablize this thing to keep me from going totally postal here ?

 

[martin]

I doubt it would hurt anything, however I seem to recall that mine was held in place by a metal strap. It has to fit in a stable position or the air will flow around it instead of through it.

 

[Mark_88]

not sure what the heat rating of fiberglass insulation is, but you might check that out at a hardware store or even do a google search...but my suggestion would be instead of fiberglass, get some of that aluminum duct wrap and use just enough to pad it all the way around the core or wherever it may need it to keep it in place...

I can't remember what it looked like either because I did mine about four years ago...but what I can recall is there was a rubber-like strip all around mine...

I used the aluminum wrap to replace the insulation between the front fender and the frame...there was a piece of fiberglass or something inside a plastic baggie originally...but that was also deteriorated...

 

[AllanD]

I'd buy some double stick bed cap mounting tape and put a pass all
the way around the heater core.

Sadly, I don't have your problem, I'm running an aluminum Gen2
heater core in my Gen1 interior heater box.

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