I'm going to put the blower motor back in my Evap box, but can't seem to find just the singular gasket. It looked like it was some sort of caulking when I took the blower motor off, but if you look at the "gasket kits" sold at Parts Place/OPGI/etc, there shows a gasket. So, I guess the first question would be-is there anywhere that sells JUST that gasket? I don't need a gasket kit for a non-AC box. Second, do I even need the gasket, or can I just use strip caulking on it like I do to seal the Evap box to the firewall.

Thanks in advance.

 

I'd use strip caulk.

 

x2 strip caulk.

 

Strip caulk from 3m is a good option, but if you want a physical option, consider getting some closed cell dense foam or a U channel product and cutting a gasket that will fold the way you want it to. A carefully cut gasket looks cleaner if you cut it right.

Have a look online at Trimlok products to see if there's something they make that will work for your application.

If it were me, I'd be looking for a 1/8" to 3/16" thick small U shaped seal to mount on the part that sits outside of the part that slips into it. If it's an extruded product, you'll need to notch the corners to make 90° turns, but that's a few minutes and an Xacto knife to learn. Pretty fun. Suggestion: Put the join between the start & end of the seal at a lower corner and have any notches on the upper corners of the joint.

I love strip caulk, but it's messy. Plus when you look at what it's sealing from the outside, it doesn't always yield a clean straight line like GM did. If you use strip caulk, be aware it has its own solvent for cleaning up the mess. It also responds well to a heat gun for spreadability. But don't use a heat gun near flammable stuff... Use a bunch of disposable gloves when shaping strip caulk to your mating surfaces, when it's warm, it's gooey as sh*t and gets on everything you're wearing. Just to put a final word supporting strip caulk, I recently bought a glue pot from Amazon for the next time I have to use the goop. It's my go-to for replacing ~60 year GM goop to seal stainless steel rain gutter and weatherstrip channels to the car body. But I sure have used in in my '66 AC system too.

Hope that helps
Chris

Hope that helps
Chris

 

I store strip caulk in the fridge now. I used to just leave it in the garage, but in a TX summer it did turn to goo. Tried just keeping it in the house and it still got messy. So now it's next to the beer. No problems since!
In this case I put the strip caulk on the face of the fan so it's smooshed between the fan and the case, just like a gasket. Don't see it.

 

Strip calk.