DynaMat

[georges80]

I just did my old mq (noisy old diesel beast) with some ebay butyl based material.

Did the door skins and rear side panel skins and also the tailgate skin. Those were the easy ones and just tapping the sheet metal on the outside after the job and all the tinny drum sounds are gone. The whole point of the sound deadening material is really to absorb the energy/resonance in the metal and that's what the butyl material is there for.

I then did the front floor areas, transmission hump and up as high as I could go on the firewall, without stripping out all the front dash (way too much work for me to bother, though it would have been nice to do that). I did under the front seats and just behind them as well.

On the test drives after the job, it is definitely noticeable that you can talk to the fellow passenger at a normal voice level and easily hear them. Quite an improvement for about $200 of material and several hours of work.

What I will have to do next (next time I'm back in oz) is put some material on the bonnet skin, since lots of engine noise goes through that metal and straight through the glass into the cab. I'll have to source some higher temp material that works in the engine bay. The old nissan 'mat' based liner that is presently there is a little old and could do with modernisation. I'd also like to use some high temp material on the engine side of the firewall, plenty of room to fit some there in the old school mq and that should help a lot too.

Anyhow, certainly a worthwhile exercise.

cheers,
george.