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#1 |
Registered User
Join Date: Jan 2015
Location: Arlington VA
Posts: 359
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Air Drafts Coming through firewall
Need some help on finding some replacement firewall grommets for a 1964 c10. Everywhere I have looked and searched seem to be for different years. I am getting some serious drafts through the firewall when I am driving and need to replace some of the grommets. Let me know if anyone has a good source or alternative solution.
thank you |
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#2 | |
Senior Member
![]() Join Date: Aug 2013
Location: corktown,mi.
Posts: 5,194
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Re: Air Drafts Coming through firewall
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#3 |
Senior Member
![]() Join Date: May 2007
Location: Doodah Kansas
Posts: 7,773
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Re: Air Drafts Coming through firewall
if you arent doing a nut and bolt restoration, this stuff works really really well for sealing up holes and existing grommets, even if they already have wires/stuff in them.
http://www.nationaltoolwarehouse.com...FQiUaQodz0sAyw
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the mass of men live lives of quiet desperation if there is a problem, I can have it. new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393 |
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#4 |
Registered User
Join Date: Jan 2015
Location: Arlington VA
Posts: 359
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Re: Air Drafts Coming through firewall
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#5 | |
Registered User
Join Date: Jan 2015
Location: Arlington VA
Posts: 359
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Re: Air Drafts Coming through firewall
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#6 |
Registered User
Join Date: Oct 2012
Location: Philly, PA
Posts: 539
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Re: Air Drafts Coming through firewall
If the tranny has been converted to an automatic and the clutch pedal assembly removed, that leaves a huge hole in the firewall. A 1.5" electrical box plug from the local hardware store will fill it perfectly if it needs to be capped off.
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My truck ain't dead, it just smells funny. |
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#7 |
Senior Member
![]() Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
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Re: Air Drafts Coming through firewall
I used the set from Brothers. They list it as fitting 60 to 66. I also used the box plug for the clutch hole. Mine also had a hole in each side that was for a plastic push pin for the stock fire wall insulation that was open. I got some to fit it at the auto parts store. I put a flood light in front of the truck with the hood open and went up under the dash at night and looked for light coming through. Looked like a starry night when I started. Now that the cab is sealed well the heater will run you out. I added a heater control valve to be able to adjust it.
Jimmy
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60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic |
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#8 |
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![]() Join Date: Mar 2005
Location: apple valley, ca
Posts: 2,670
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Re: Air Drafts Coming through firewall
I did the same thing as Jimmy, and hung a drop light under the hood and closed it and then checked the firewall from the interior side. This way, you'll know which grommets to replace, and where to add silicone or filler panels.
I think this something that everybody needs to do. It makes a huge difference in noise and temperature control.
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Check out my latest endeavor: https://roundsixpod.com My build threads: '55 Chevy: http://67-72chevytrucks.com/vboard/s...d.php?t=247512 '64 C-20: http://67-72chevytrucks.com/vboard/s...d.php?t=446527 |
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#9 |
Registered User
Join Date: Jan 2015
Location: Arlington VA
Posts: 359
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Re: Air Drafts Coming through firewall
Thanks all - i will look into the brothers kit and add the 3M caulk where needed. My thoughts were to start from the engine bay and then look from the interior as well.
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#10 |
Registered User
Join Date: Jan 2011
Location: CA
Posts: 772
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Re: Air Drafts Coming through firewall
Thanks for all the tips in this thread! I am looking to do the exact same thing!
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'61 Panel - Helms Bakery Truck - Daily Driver - FOR SALE |
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#11 |
Registered User
Join Date: Jan 2015
Location: Arlington VA
Posts: 359
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Re: Air Drafts Coming through firewall
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#12 |
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![]() Join Date: Nov 2007
Location: Calais, Maine
Posts: 512
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Re: Air Drafts Coming through firewall
I'm coming to Joisey, it was 9 here in the Blue Ridge this morning. Going up to 55 tomorrow, I'm taking the Chief out for a spin!
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1963 Chevrolet C-10 "Ginger" ![]() 1970 C-30 Dump Truck "Scarlet" 2019 Chevy Silverado 2500 Z71 LTZ 1947 Indian Chief Roadmaster with Sidecar. 2012 Indian Chief Serial #002 of 110 built in '12 2016 Indian Chief Roadmaster |
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#13 |
Registered User
Join Date: Jan 2015
Location: Arlington VA
Posts: 359
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Re: Air Drafts Coming through firewall
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#14 |
Senior Member
![]() Join Date: Nov 2007
Location: Calais, Maine
Posts: 512
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Re: Air Drafts Coming through firewall
I hear ya bud. I hope it warms up soon, the propane guy just paid a visit, $568.23 since December 4th. That hurts!
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1963 Chevrolet C-10 "Ginger" ![]() 1970 C-30 Dump Truck "Scarlet" 2019 Chevy Silverado 2500 Z71 LTZ 1947 Indian Chief Roadmaster with Sidecar. 2012 Indian Chief Serial #002 of 110 built in '12 2016 Indian Chief Roadmaster |
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#15 |
Registered User
Join Date: Jan 2015
Location: Arlington VA
Posts: 359
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Re: Air Drafts Coming through firewall
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#16 |
Registered User
Join Date: Jan 2011
Location: CA
Posts: 772
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Re: Air Drafts Coming through firewall
YIKES! Thats never fun. I did that on the freeway at 60mph once in my 51. And i only had F/R bags, so the whole front dropped!
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'61 Panel - Helms Bakery Truck - Daily Driver - FOR SALE |
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#17 |
Registered User
Join Date: Jan 2015
Location: Arlington VA
Posts: 359
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Re: Air Drafts Coming through firewall
Yea thankfully it is only the fill hose and my bags are keeping the air that was already in them...when I go to fill it just leaks out. Off to truck supply tomorrow to find DOT air line
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#18 |
Senior Member
![]() Join Date: May 2007
Location: Doodah Kansas
Posts: 7,773
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Re: Air Drafts Coming through firewall
the semi truck place here carries air line, ask for synflex, it is the common name for DOT line. dont trust zip ties to keep your airlines captured either, use adel clamps
![]() oh and I hope your truck parts place is open on saturdays because here they arent and they even close at 2 on fridays, thats how sure they are about not being open saturday ![]()
__________________
the mass of men live lives of quiet desperation if there is a problem, I can have it. new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393 |
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#19 |
Registered User
Join Date: Jan 2015
Location: Arlington VA
Posts: 359
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Re: Air Drafts Coming through firewall
NAPA had the 3/8" - going to get under it on Monday - posted another thread in suspension cusnowmy compressor isnt turning on - has to be related to the busted line though
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