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Old 09-17-2010, 12:53 AM   #1
dlisabeth
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Heater Box seal installation

This feels like a stupid question but it has me stumped!

I am working on re assembling my heater box in preperation for paint and have run across an issue. I purchased a 6-piece seal kit from Classic Industries but can only figure out how to use 2 of the seals. The previous owner had used silicone sealant so I did not remove any seals during disassembly which I could use as a guide. Below is a photo of my heater box along with a photo of the 4 seals which I cannot figure out. The other photo is of the 2 seals that are obviously installed at the heater box and firewall connections. Can someone please provide me with some insight as to which seals go where?

Also is there supposed to be a seal between the fan and heater box?

Thanks,

Derek
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Old 09-17-2010, 01:09 AM   #2
Captainfab
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Re: Heater Box seal installation

I can't help you with those 4 seals. They don't look like anything I've seen on these trucks in over 30 years of working on them. As for a seal between the fan and the heater box. I've seen some with a butyl type of caulking on them and some without anything. I'm not sure what was done at the factory. I would say that some sort of seal wouldn't hurt.
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Old 09-17-2010, 01:38 AM   #3
dlisabeth
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Re: Heater Box seal installation

Quote:
Originally Posted by Captainfab View Post
I can't help you with those 4 seals. They don't look like anything I've seen on these trucks in over 30 years of working on them. As for a seal between the fan and the heater box. I've seen some with a butyl type of caulking on them and some without anything. I'm not sure what was done at the factory. I would say that some sort of seal wouldn't hurt.
I am glad I am not alone. :-)

Here is a page out of LMC's catalog that shows the same kit.

If you haven't used these seals, what have you used and in what areas of the box?
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Old 09-18-2010, 12:39 AM   #4
Captainfab
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Re: Heater Box seal installation

I've not bought the seal kit. If I needed a new seal, I've just made my own, and just the two you already figured out.

Quote:
Originally Posted by dlisabeth View Post
I am glad I am not alone. :-)

Here is a page out of LMC's catalog that shows the same kit.

If you haven't used these seals, what have you used and in what areas of the box?
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Old 09-17-2010, 05:51 PM   #5
dlisabeth
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Re: Heater Box seal installation

Does anyone have anymore info on this? Has anyone else bought this seal kit?
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Old 09-18-2010, 02:14 PM   #6
tapeworm
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Re: Heater Box seal installation

I'm glad I bought that kit as well.

And I was thinking, "wow, what a complete kit"
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