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Blower motor gasket

Posted: Sun May 22, 2022 7:16 pm
by johnb
Does anyone know if you can reuse this (late models)? I'm fixing my fan resistor wiring next to the blower motor and there's a lot of crap I'd like to clean out from around the blower motor while I have the cowl off. But I don't know if I want to remove the blower assembly and risk damaging this seal. The PET describes it as a "sealing cord".

Re: Blower motor gasket

Posted: Sun May 22, 2022 8:33 pm
by Darwin
johnb wrote: Sun May 22, 2022 7:16 pm Does anyone know if you can reuse this (late models)? I'm fixing my fan resistor wiring next to the blower motor and there's a lot of crap I'd like to clean out from around the blower motor while I have the cowl off. But I don't know if I want to remove the blower assembly and risk damaging this seal. The PET describes it as a "sealing cord".
It’s just butyl tape. Same stuff that the tail lights use to seal to the body. Around where I live, you can get it at autozone. It doesn’t harden or dry, so you may be able to reuse it, but it isn’t a guarantee.

Re: Blower motor gasket

Posted: Mon May 23, 2022 4:51 am
by johnb
Darwin wrote: Sun May 22, 2022 8:33 pm
johnb wrote: Sun May 22, 2022 7:16 pm Does anyone know if you can reuse this (late models)? I'm fixing my fan resistor wiring next to the blower motor and there's a lot of crap I'd like to clean out from around the blower motor while I have the cowl off. But I don't know if I want to remove the blower assembly and risk damaging this seal. The PET describes it as a "sealing cord".
It’s just butyl tape. Same stuff that the tail lights use to seal to the body. Around where I live, you can get it at autozone. It doesn’t harden or dry, so you may be able to reuse it, but it isn’t a guarantee.
Is it the same as the stuff used to hold the plastic cowl in place over the blower motor?

Re: Blower motor gasket

Posted: Mon May 23, 2022 7:14 am
by Darwin
johnb wrote: Mon May 23, 2022 4:51 am
Darwin wrote: Sun May 22, 2022 8:33 pm
johnb wrote: Sun May 22, 2022 7:16 pm Does anyone know if you can reuse this (late models)? I'm fixing my fan resistor wiring next to the blower motor and there's a lot of crap I'd like to clean out from around the blower motor while I have the cowl off. But I don't know if I want to remove the blower assembly and risk damaging this seal. The PET describes it as a "sealing cord".
It’s just butyl tape. Same stuff that the tail lights use to seal to the body. Around where I live, you can get it at autozone. It doesn’t harden or dry, so you may be able to reuse it, but it isn’t a guarantee.
Is it the same as the stuff used to hold the plastic cowl in place over the blower motor?
Honestly I’m not sure. When I removed mine, it didn’t seem like it was the same stuff. When I removed my tail lights, it was still pliable and tacky. Whatever they used on the cover seemed to have actually dried and was hard/brittle.

Re: Blower motor gasket

Posted: Mon May 23, 2022 11:56 am
by 355
Yes, it really is the same sticky, black butyl rope that comes in rolls for installing windshields and such. It usually stays soft and tacky but will harden with age and weathering. I just replaced mine with some I had left over from an old windshield project on another car and it worked perfectly.

Re: Blower motor gasket

Posted: Mon May 23, 2022 2:06 pm
by four0four
I used exactly this (3/8ths butyl tape) to reseal my old NA's blower. The original stuff looked to be the same, except where the seal failed (maybe I wasn't the first to remove the blower) and/or where it oxidized and hardened.

Re: Blower motor gasket

Posted: Mon May 23, 2022 3:37 pm
by 355
four0four wrote: Mon May 23, 2022 2:06 pm I used exactly this (3/8ths butyl tape) to reseal my old NA's blower. The original stuff looked to be the same, except where the seal failed (maybe I wasn't the first to remove the blower) and/or where it oxidized and hardened.
That’s the stuff I used too. It’s exactly the same as what was in my car and my box lid had never been off before.

Re: Blower motor gasket

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


20220528_172357.jpg
20220528_172357.jpg (441.29 KiB) Viewed 2183 times


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


20220528_173406.jpg
20220528_173406.jpg (225.4 KiB) Viewed 2183 times

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!

Re: Blower motor gasket

Posted: Tue May 31, 2022 5:04 am
by Darwin
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?

Re: Blower motor gasket

Posted: Tue May 31, 2022 12:25 pm
by johnb
I was thinking of using something like this for the foam gasket:

https://www.amazon.com/Insulation-Neopr ... HJ1ZQ&th=1