Front overhang of Convertible top

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Nitrate
Posts: 278
Joined: Thu Jul 23, 2015 5:38 pm
Your car is a: 1981 Fiat 2000

Front overhang of Convertible top

Post by Nitrate »

1981. 2000. The overhanging lip on the front of my convertible top seems to be creating quite a bit of turbulence and noise. There isn't a noticeable air leak but the wind hitting the 1/4 to 3/8" overhang makes good amount of noise at 60MPH. The canvas piping does not blend in 100% smooth with the top of the windshield frame and the air catches it. Am I asking too much for the convertible to be quiet at 60 - 65 MPH? RB
Ragno124
Posts: 76
Joined: Fri Oct 21, 2011 9:48 am
Your car is a: 1981 124 Spider
Location: Northwest Chicago Suburbs

Re: Front overhang of Convertible top

Post by Ragno124 »

Are you missing the rubber seal between the top frame and window?

http://www.autoricambi.us/product/RE5-4 ... bber-Seal/
Steve Muzzillo

1981 124 Spider 2000 (ex-turbo)
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Nitrate
Posts: 278
Joined: Thu Jul 23, 2015 5:38 pm
Your car is a: 1981 Fiat 2000

Re: Front overhang of Convertible top

Post by Nitrate »

Not so much an air leak, more like air turbulence that you can hear, like putting your hand out the window.
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joelittel
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Joined: Tue Mar 08, 2011 6:53 pm
Your car is a: 1980 Spider 2000 FI
Location: Evanston, IL

Re: Front overhang of Convertible top

Post by joelittel »

Is it a newly installed top?

There's a chance that it's not properly seated on the bow.
vandor
Posts: 3996
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Your car is a: 1971 124 Spider
Location: Texas, USA

Re: Front overhang of Convertible top

Post by vandor »

Sounds like things are not lined up correctly.
Csaba
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donm
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Your car is a: 1980 spider [carb]
Location: Hamilton. MA

Re: Front overhang of Convertible top

Post by donm »

Nitrate, I think you expect too much. Top up, top down, it doesn't make any difference on my car. It's just as noisy on the highway.

These days, convertible tops are much more aerodynamic and most have inner liners. And the transition from the leading edge of the top to the windshield is much smoother.
1979 Spider
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DieselSpider
Posts: 2130
Joined: Wed Dec 24, 2014 10:21 pm
Your car is a: 1978 124 Spider with Isuzu Turbo Diesel

Re: Front overhang of Convertible top

Post by DieselSpider »

I guess it could depend on your definition of quiet. I find mine very quiet compared to other convertibles of that era and even some modern ones.

If one of the latches however is not set right it can get very noisy.

Does the noise diminish when you pull the handle on the front bow down? If so then the front latches may be worn, the gasket may need replacing or the front bow itself may be distorted and no longer matching the curve of the windshield.
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spidernut
Posts: 1906
Joined: Wed Jan 25, 2006 12:20 am
Your car is a: 1979 Fiat Spider Automatic
Location: Lincoln, CA

Re: Front overhang of Convertible top

Post by spidernut »

Post a picture of how your convertible top fits against the windshield frame. The sewn on trim should not flip upwards. It should lay flat against the windshield frame.

There will always be a lot of noise from the convertible tops. If they're not stretched properly, they'll vibrate in the wind no matter what you do. The newer convertibles have insulated, multi-layer tops that minimize the noise.
John G.
1979 Spider (Owned since 2000)
1971 124 Sport Spider (Owned since 2017)
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1979 Spider (Disposed of in 2017)
1979 Spider (Sold 2015)
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