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04-10-2021, 04:56 PM | #1 |
Junior Member
Join Date: Mar 2015
Location: Dallas TX
Posts: 71
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Vent Windows NOISE
my orig vent windows were old and original, but the truck was quiet, occasionally a whisper on a windy day.. Now unbearable.. are there tricks to fix wind noise on these trucks? 67 c20.. My vents are a recent rebuild..
Is it an aftermarket seal thing? what is the general experience with these, i dont want to go one piece i think its part of the charm of these trucks.. thank you Zach |
04-10-2021, 07:54 PM | #2 |
The Older Generation
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,270
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Re: Vent Windows NOISE
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It depends on what replacement rubber gaskets were used with the rebuild. Some seal a lot better than others. Do you have trouble getting your vent windows open and closed? Does it look like the rubber is bunching up in the bottom corners? LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
04-11-2021, 11:19 AM | #3 |
Junior Member
Join Date: Mar 2015
Location: Dallas TX
Posts: 71
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Re: Vent Windows NOISE
They are precision seals , they open and close ok, its both sides the same.. Not a whistle but a full blown loud wind noise even on side roads.. prob should have left them alone, they were fine sounding with the old somewhat cracked weatherstrip.. I also got a few versions of door seals around the doors from precision, including the latest version a month ago, and you have to slam the doors to get them closed.. Do folks have issues with precision ? is there another alternative? I had Honda seals in there and thought that they were the cause of the wind noise so i tried the new precision ones, now that i know its coming from the vent windows i will put the honda seals back in i guess and get rid of the precision door seals..
let me know what the consensus is on this if anyone knows.. Its literally ruining the truck drivability, i can't hear my girlfriend talking which has become an issue, sometimes that is.. |
04-11-2021, 01:36 PM | #4 |
Post Whore
Join Date: Feb 2016
Location: Portland Oregon
Posts: 10,756
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Re: Vent Windows NOISE
Are you talking about the vent window seal or the door seals? Try taping the wing windows around the seal with some duct tape and do a test run. It should help you pin point where the noise is originating from.
I have had problems with the wing window hinge flexing so I don't open the wings anymore. I remember back in the day both sides of the old man's K20 had folded match books under the wing window latches to keep them from whistling.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
04-11-2021, 02:40 PM | #5 |
Senior Member
Join Date: Mar 2005
Location: Jurupa Valley, Ca
Posts: 1,208
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Re: Vent Windows NOISE
I rebuilt my wing vents and they were extremely noisy. Using tape to figure out where the noise was coming from, I finally figured out it was the wing vent seal to the door itself, not the glass to rubber in the wing vent. For now I have black tape sealing it, almost unnoticeable, but will need to figure out something when I finally get paint.
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Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC |
04-11-2021, 03:53 PM | #6 | |
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Location: CA
Posts: 5,242
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Re: Vent Windows NOISE
Quote:
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04-11-2021, 05:55 PM | #7 |
Senior Member
Join Date: Jan 2005
Location: CA
Posts: 5,242
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Re: Vent Windows NOISE
Mine is leaking between the seal and the door frame from the bottom to the vent hinge. Initially it was making a shrill whistling noise, but now it is a dull noise with the caulk strip in there. I'm wondering if people have had good luck with brands other than Precision.
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04-12-2021, 12:14 PM | #8 |
Senior Member
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Location: CA
Posts: 5,242
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Re: Vent Windows NOISE
Thank you, LockDoc. Those seals do look nicer. I wonder if they are better in terms of wind noise as well.
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04-12-2021, 03:37 PM | #9 | |
The Older Generation
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,270
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Re: Vent Windows NOISE
Quote:
I don't remember getting much wind noise in the truck I used them on but I didn't drive it much before I sold it. You might PM Highwinger (the OP of the thread) and check with him. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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06-13-2021, 01:36 AM | #10 |
Senior Member
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Re: Vent Windows NOISE
I sent a PM to Highwinger, but I never got a reply. I was nervous about experimenting with the classicparts.com vent window seals without feedback from someone who has used them, so I bought a set of NOS seals instead. I installed the driver side today, and as you'd expect, it is nice and quiet. It popped into the front frame of the door in a way the Precision seals never did. I did buy a set of the classicparts.com seals too, and they look and feel more like NOS than the Precision seals do.
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06-13-2021, 09:34 AM | #11 | |
The Older Generation
Join Date: Aug 2006
Location: Montezuma, Iowa
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Re: Vent Windows NOISE
Quote:
Thanks for the followup Patrick. Nice to know they are still selling the same seals. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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01-15-2022, 01:26 AM | #12 |
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Location: CA
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Re: Vent Windows NOISE
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04-12-2021, 03:44 PM | #13 |
Senior Member
Join Date: Jan 2005
Location: CA
Posts: 5,242
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Re: Vent Windows NOISE
Will do. Thanks!
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04-13-2021, 05:24 PM | #14 |
Junior Member
Join Date: Mar 2015
Location: Dallas TX
Posts: 71
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Re: Vent Windows NOISE
are the vent windows themselves different in 67 vs 68..
curious how they are different.. i thought it was really just the handle.. thanks... |
04-13-2021, 06:54 PM | #15 | |
Senior Member
Join Date: Feb 2002
Location: Tucson, AZ USA
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Re: Vent Windows NOISE
Quote:
Glass is shaped the same, so the gasket should not have to change. But I haven't re-gasketed my vent windows on the 67 or 68, so I could be wrong. Not sure if it's pertinent to this discussion, but as I recall the '67 glass doesn't have the hole.
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Every 25 years I like to rebuild that 292, whether it needs it or not. Last edited by '68OrangeSunshine; 01-15-2022 at 02:44 AM. |
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