Carpokes Porsche Forum

Darwin wrote: Tue May 31, 2022 5:04 am

johnb wrote: Sat May 28, 2022 2:49 pm Thanks guys, I got that stuff from Amazon. So anyway, here's why I wanted to pull the blower motor assembly:



20220528_172357.jpg



Looks like the car is falling apart with rust, right? That's what I thought too. But then...



20220528_173406.jpg


Tada! Gone. Years ago I had a really badly rusted battery tray and I had to get some serious repair work done there. The guy did some kind of media blasting. I'm not sure what he used, but it looks like a lot of it accumulated behind the blower and eventually turned into that rust colour. But it also hardened into these solid chunks that perfectly mimic a rusty body. A couple of minutes of gentle scraping and vacuuming and it's as clean as a whistle.

Next question: any suggestions for what to use to replace the foam around the evaporator? It looks similar to the stuff used to seal the intercooler. Years ago I replaced that stuff with foam tape, but it would be tricker to do a clean job on this with the same tape. If anyone has done this before, I'd love to know what you used!

@Tom What was it that you were using when you were R&R’ing your heater box during your dash swap?

Tom wrote: Tue May 31, 2022 12:44 pm

Darwin wrote: Tue May 31, 2022 5:04 am

johnb wrote: Sat May 28, 2022 2:49 pm Thanks guys, I got that stuff from Amazon. So anyway, here's why I wanted to pull the blower motor assembly:



20220528_172357.jpg



Looks like the car is falling apart with rust, right? That's what I thought too. But then...



20220528_173406.jpg


Tada! Gone. Years ago I had a really badly rusted battery tray and I had to get some serious repair work done there. The guy did some kind of media blasting. I'm not sure what he used, but it looks like a lot of it accumulated behind the blower and eventually turned into that rust colour. But it also hardened into these solid chunks that perfectly mimic a rusty body. A couple of minutes of gentle scraping and vacuuming and it's as clean as a whistle.

Next question: any suggestions for what to use to replace the foam around the evaporator? It looks similar to the stuff used to seal the intercooler. Years ago I replaced that stuff with foam tape, but it would be tricker to do a clean job on this with the same tape. If anyone has done this before, I'd love to know what you used!

@Tom What was it that you were using when you were R&R’ing your heater box during your dash swap?

@dr bob loaned me some foam tape that was maybe 3 or 4mm thick. I used that to seal the flaps inside, and have most of it left-over -- so happy to forward that to the next Carpokean in need. On the outside of the box, i just used a home depot open-cell weather stripping foam 3/4' x 3/4"... I might be inclined to use something stronger for the blower box though -- i.e., a denser foam that would withstand that environment better.

johnb wrote: Sun May 22, 2022 7:16 pm Is it the same as the stuff used to hold the plastic cowl in place over the blower motor?