Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Apr 2013
Posts: 1,370 Likes: 11
Has a lot to Say!
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OP
Has a lot to Say!
Joined: Apr 2013
Posts: 1,370 Likes: 11 |
Bad title but it is correct. Ever since my car was rebuilt with a new frame I am getting floor panel vibrations at around 3100 rpm and stopping at 3500 rpm. This is the maximum torque range so the whole car is trying to sing. The new frame arrived with a new floor of aluminum and I suspect loose rivets. I am also looking into the idea of clearing everything out as much as possible, a good cleaning then finishing up with a bead of silicone caulk at all the joins.
Ideas, thoughts or dire warnings?
What's your mileage? Who cares. Is it practical? See #1. What happens when it rains? You get wet.
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Joined: Feb 2016
Posts: 775 Likes: 33
Talk Morgan Regular
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Talk Morgan Regular
Joined: Feb 2016
Posts: 775 Likes: 33 |
Hi Michael H,
Line the aluminum panels with self adhesive Dynamat. Will eliminate all harmonic vibrations of the panel. I lined my entire cockpit ( behind seats, side panels, floor ) with Dynamat. Made a big difference in noise reduction from vibrations. There are other sound deadening products out there besides Dynamat that probably would work as well.
Loose rivets will probably continue to rattle but the aluminum panels will be quiet.
Last edited by Sportster; 05/08/18 11:38 PM.
2015 M3W, Morgan Aero Racing Stage 1, Garage 56 Stage 2, sport black, saddle tan, jeweled SS dash.
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Joined: Aug 2009
Posts: 557
Talk Morgan Regular
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Talk Morgan Regular
Joined: Aug 2009
Posts: 557 |
+1 on Dynamat, great stuff.
2016 M3W, Army Green Matte/Tan Leather, 17k miles
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
Hi Michael H,
Line the aluminum panels with self adhesive Dynamat. Will eliminate all harmonic vibrations of the panel. I lined my entire cockpit ( behind seats, side panels, floor ) with Dynamat. Made a big difference in noise reduction from vibrations. There are other sound deadening products out there besides Dynamat that probably would work as well.
Loose rivets will probably continue to rattle but the aluminum panels will be quiet. How did the Dynamat project? Did you get a particular thickness? Difficult to install?
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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