The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-08-2014, 01:46 AM   #1
Gregski
Post Whore
 
Gregski's Avatar
 
Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,863
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
Attached Images
   
Gregski is offline   Reply With Quote
Old 12-08-2014, 01:56 AM   #2
78maliburat
Registered User
 
Join Date: Jul 2009
Location: cleburne texas
Posts: 174
Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.

SILICONE
78maliburat is offline   Reply With Quote
Old 12-08-2014, 05:38 AM   #3
donut
Registered User
 
donut's Avatar
 
Join Date: Aug 2009
Location: S.C.
Posts: 1,593
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.
donut is offline   Reply With Quote
Old 12-08-2014, 05:45 AM   #4
andrewmp6
Registered User
 
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.

Yeah seam sealer will last the longest their.
andrewmp6 is offline   Reply With Quote
Old 12-08-2014, 06:34 AM   #5
tucsonjwt
Registered User
 
Join Date: Jul 2007
Location: Tucson, AZ
Posts: 3,189
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.
tucsonjwt is offline   Reply With Quote
Old 12-08-2014, 11:43 AM   #6
Gregski
Post Whore
 
Gregski's Avatar
 
Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,863
Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.

Quote:
Originally Posted by donut View Post

... Personally, I wouldn't use silicone on the body panels...
Yeah, a bit reluctant to go that route, thanks.
Gregski is offline   Reply With Quote
Old 12-08-2014, 12:31 PM   #7
mrolds88
Registered User
 
Join Date: Jul 2011
Location: WV
Posts: 946
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:... 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
mrolds88 is offline   Reply With Quote
Old 12-08-2014, 08:08 PM   #8
Gregski
Post Whore
 
Gregski's Avatar
 
Join Date: Aug 2014
Location: Sacramento, CA
Posts: 10,863
Re: Blower Air Inlet Assembly Gasket or RTV or Nothing.

Quote:
Originally Posted by mrolds88 View Post
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: Automotive 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.
got it, thank you very much, here's some pics to show others what this stuff looks like, I think you find this behind your door panels its what holds the clear plastic or paper insulation to the metal
Attached Images
  
Gregski is offline   Reply With Quote
Old 12-08-2014, 10:29 PM   #9
donut
Registered User
 
donut's Avatar
 
Join Date: Aug 2009
Location: S.C.
Posts: 1,593
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.
donut is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:18 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com