Had a few hours to spare finally so went down to the shop and installed some of the in car sound deadening and under car heat shielding before the motor goes back in and the new AC gets installed.
First step is to reduce the amount of heat getting in the cabin. For this I used a product called Zero Clearance. It has an aluminium face(quite thick, did cut myself a couple times, should have worn gloves), a fibreglass/polyester core and a very strong adhesive backing. Once applied, I sealed the edges with heat proof tape. It has minimal moisture absorbtion and the tape I was told is not necessary, but I thought I'd chuck it on anyway as I had some to spare. Did from the bottom of the firewall up through the tunnel, and then two squares at the rear where the mufflers will sit. I will also use some on the side of the fuel tank also where the exhaust pipes come very close.
Although it may not look like it, it is actually quite a neat install, the sealing tape is what makes it look a bit rough.
Next step was the interior. First of all was the vibration deadening material which I got from carbuilders, same stuff as dynamat. Applied it under the dash on the cowl, on the firewall etc. Complete coverage is not needed, as this is only to deaden the vibration and resonance in the panel. I will be doing the rest of the car once the car gets back to mine for the interior install.
Next step is the closed cell foam/mass loaded vinyl/closed cell foam material that will be used to reduce the sound/some heat coming into the cabin. It's quite heavy, and is very similar to sound deadening materials found in some modern cars. As you can see from the pictures I laid two sections up to the lower firewall, using spray on adhesive. I didn't take a final photo but after the two sections were laid I covered the tunnel up to the shifter with sections of ccf/mlv, and then used sealing tape to seal them together, as for this to be most effective you need complete coverage with no gaps.
Once the car gets home the entire floor, rear divider, parcel shelf and boot will be covered in this ccf/mlv product. The the carpet is the final step.
Two things I learned from today.
1. This is way too tedious
2. Good luck to the sorry sod who restores this in how ever many years and has to scrape this crap off (hopefully not me)
