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12-08-2014, 01:46 AM
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#1 |
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Registered User
Join Date: Aug 2014
Location: Sacramento, CA
Posts: 11,030
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Blower Air Inlet Assembly Gasket or RTV or Nothing.
Hope you can help me. When I removed the blower air inlet assembly off my '74 GMC half ton (non AC truck) I did not find much in the way of a gasket between it and the firewall, and I don't see anything on LMC Truck site for it, nor could I find anything at AutoZone or NAPA.
So should there be a gasket there of some sorts, do I make one out of cork, or do I use RTV? Please advise |
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12-08-2014, 01:56 AM
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#2 |
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Registered User
Join Date: Jul 2009
Location: cleburne texas
Posts: 174
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Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.
SILICONE
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12-08-2014, 05:38 AM
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#3 |
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Registered User
Join Date: Aug 2009
Location: S.C.
Posts: 1,593
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Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.
I used seam sealer, though iirc, there wasn't anything on there.
Personally, I wouldn't use silicone on the body panels. Everyplace the PO did use it, it rusted, though it may take years for it to show up.
__________________
'86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold  )I'm kinda like duct tape- no real purpose, but handy to have around. |
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12-08-2014, 05:45 AM
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#4 |
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Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.
Yeah seam sealer will last the longest their.
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12-08-2014, 06:34 AM
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#5 |
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Registered User
Join Date: Jul 2007
Location: Tucson, AZ
Posts: 3,199
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Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.
My 83 had a urethane foam weatherstripping. I used house door dense urethane weatherstripping from Home Depot. I used the sticky side on the box.
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12-08-2014, 11:43 AM
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#6 | |
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Registered User
Join Date: Aug 2014
Location: Sacramento, CA
Posts: 11,030
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Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.
Quote:
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12-08-2014, 12:31 PM
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#7 |
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Registered User
Join Date: Jul 2011
Location: WV
Posts: 946
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Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.
I would use what is commonly called "dumb dumb". This has been used by the factory for many years. Here's a link.
 Amazon.com: 3M 08578 Black 1' Strip Calk:... If you don't want to go the Amazon route, any auto body supply should either have it i stock or can easily get it for you.
__________________
72 GMC C2500 402/Th400 first truck (still have) 77 GMC C3500 CC dually Sold  70 C50 dump truck "Rusty" 87 K10 Suburban Sold 93 K2500 xcab 6.5TD 96 GMC K2500 Suburban 6.5 TD |
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12-08-2014, 08:08 PM
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#8 | |
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Registered User
Join Date: Aug 2014
Location: Sacramento, CA
Posts: 11,030
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Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.
Quote:
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12-08-2014, 10:29 PM
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#9 |
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Registered User
Join Date: Aug 2009
Location: S.C.
Posts: 1,593
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Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.
That's the stuff that I'd use. Mine was ordered, but didn't show, so seam sealer got used. I did have the urethane that tucsonjwt mentioned, think I used that on my transmission hump.
__________________
'86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold )I'm kinda like duct tape- no real purpose, but handy to have around. |
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