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Front Door Sound Deadening

Day Started out all right I guess. Nancy and I turned up at about 9:30 is to be greeted by what looked like a very tired Clay.
After spending about 2 hours running round in the morning collecting items that we needed from several auto stores we finally had what we needed to get everything underway.

  • 4 Cans of Motorspray spray on deadener
  • 1 Can on Motorspray paint on deadener
  • Pack of cheap paintbrushes
  • Pack of screws
  • Inch wide masking tape
  • Silicone
  • Tape measure
  • Pen
  • Caulking Gun
  • Assorted Screwdrivers and Sockets
  • Sheet of 3mm MDF
  • Carton of XXXX Gold (IMPORTANT)
  • Jigsaw
  • Metho
  • Amplifier wiring pack (more on this later)
Upon returning to Clay's house we started to strip down the passenger door.  Being a fairly new car (2 years) there was not much dirt and build up in the doors so we got away with a quick wipe over with the Metho.

Taking care to make sure vital components like window tracks are masked up, and locking mechanisms are covered; we proceeded to empty an entire can into the door. Working from the speaker location outwards. Its important to make sure that you make it nice and thick right behind the speaker because this is where most of the vibrations are going to occur.

While we let this set, we attacked the rear of the door trims with the paint on stuff.

Once again just make sure it’s nice and thick. And that you cover all the holes that might let it run through to the other side.  Now that the door is touch try, remove the masking that you put inside on the tracks and mechanisms.

Start cutting up the 3mm MDF roughly to size.

Its better to make it slightly bigger so you can trim it down to it fits nice and snug.  Screw it down once it’s in place then run the silicone round it to make sure it’s nice and sealed. Don’t be afraid to over do it with silicone.

By now the door should look like this, although having Chris spectate while downing a coldie is optional

Just watch out for items like central door lock motors, which Clay forgot and screwed right into… blowing up his control module in the process…

Now mask up the edge of the door, make sure you mask well inside the line where the door trim sits otherwise your left with ugly black that’s visible. And on a white car such as Clays it’s not very attractive.

Make sure the window is up and you cover it with newspaper, as you tend to have quite a bit of over spray. Repeat with the doorjambs as well

Now fire away, remembering to make it the thickest around the speaker and any other large flat panels that could “resonate” later.

Note – Remember to mask up your door handle / lock or you might be left in a sticky situation like we were…
Now all that is left to do is let it dry
Once its dry, remove all the maskings and you should be left with something that has no resemblance to your old door.
Then it was down to Clay to do the drivers side, yes the pic is blurry… I had quite a few beers by now!
Put the speakers in
And once the trim is back on, presto your done.

Note – Empty Corona Bottle – Celebration Beer.

Thanks to Clay for letting his car be the test dummy (!), Chris for chatting up his sister & friend, Nancy for errr ummm keeping us under control (!) and Danny and his girlfriend (sorry I forgot your name) for popping in to say Hi.