Hood silencer?
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Joined: Mar 2005
Posts: 576
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From: West Lafayette, IN
Hood silencer?
Anybody have any good tricks to make your hood sound a little less ridiculous when you close it? Maybe dynamat if it can handle the temperature? Regular hood insulation?
Sounds like somebody smacking a metal garbage can with a baseball bat. Decidedly the least sexy sound the car makes.
Sounds like somebody smacking a metal garbage can with a baseball bat. Decidedly the least sexy sound the car makes.
When I restored my car i addressed this issue by using several dabs of strategically placed seam sealer between the frame of the hood and the hood skin. This stopped the hood skin from vibrating which caused the sound, part of the reason I did it was because my original hood had a crease from one time when it got slammed too hard. I was hopping to kind of reinforce it so that wouldn't occur again, but it also helped with the sound as well.
Joined: Mar 2001
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From: https://www2.mazda.com/en/100th/
When I restored my car i addressed this issue by using several dabs of strategically placed seam sealer between the frame of the hood and the hood skin. This stopped the hood skin from vibrating which caused the sound, part of the reason I did it was because my original hood had a crease from one time when it got slammed too hard. I was hopping to kind of reinforce it so that wouldn't occur again, but it also helped with the sound as well.
Thread Starter
Joined: Mar 2005
Posts: 576
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From: West Lafayette, IN
Ah! That makes sense! I didn't realize it was the hood rattling against the frame. So is this something that has to be done with the frame separated from the skin?
I'm going to have the car professionally painted in a month or two, so that sounds like a great time to do it.
I'm going to have the car professionally painted in a month or two, so that sounds like a great time to do it.
You just squirt dabs of seam sealer in between the frame and the hood from underneath, no need to take it apart. And the skin doesn't actually rattle against the frame, it just vibrates enough to be noisy.
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Any generic brand will do, any auto body supply will have tons of it. Here is one from Eastwood:
Eastwood Seam Sealer Cartridge
One from Summitt Racing:
http://www.summitracing.com/parts/sm...FQQQ7Aod4FoA0A
Eastwood Seam Sealer Cartridge
One from Summitt Racing:
http://www.summitracing.com/parts/sm...FQQQ7Aod4FoA0A
Annoying as hell right? There is a road that regularly runs 85 mph headed to Duluth and man, does that hood bug me. I've seen a few posts here that deal with it, but none that I like how they looked well enough to go jump on it. If this is just a little bead that puts enough pressure on the hood to keep it from wobbling this could get added to the list.
Ground control to major Tom. Mine too flies with the wind. Cept mine is on the drivers side. I get a real good view of this. Thought I was special. Glad I'm not. Lol
Sent from my iPad using RX7Club. how bout that!
Sent from my iPad using RX7Club. how bout that!
I'm too lazy to run out to my car and check, but are there adjustment slots on the hood latch that would allow you to "preload" the hood? In other words, to hold it down more tightly?
DD adds a good point. Rubber detoriates over time and re placing or re adjusting the stops can reduce the corner flutter at speeds. The tinny rattle when closing the hood is a seperate issue, but when new they used sealer between the hood pannel and its support which kept the sound to a dull thunk. The first time I heard one reverberate like empty a soup can was very annoying to me. The original sealer must get brittle over time too and loses adhesion. I much prefer the solid thunk. It's one of the little tell tale things you can use to judge a cars true condition and amount of care its recieved.
Joined: Jun 2008
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From: Chino Hills, CA
3M makes a smaller tube of Seam Sealer that doesn't require a Glue Gun.
Joined: Jun 2006
Posts: 4,815
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From: Columbia, Tennessee
Well I figured out my problem. I hope its this easy for everyone else. The passenger side flutter was caused by this little guy being backwards. With it backwards it doesnt form fit the edge of the hood properly and the hood basically bounces like a pogo stick on it being that it doesnt close or align right. This picture is the correct way to have the bushing.







