Volvo 480 Club Europe

Part 1 is under ‘Secret Life’.

Another common problem, is the sound-deadening foam under the bonnet turning to dust. I put an old sheet across the engine, and scraped off the remaining foam, leaving the metal layer in place, and reattached the earth wires. This is needed to reduce radio interference, as it is a plastic bonnet. I cut cardboard templates based on the metal layer, and wiped the metal with white spirit. Replacement foam, 25mm thick, was bought from eFoam.co.uk and is called Pyrosorb-S Class 0 Acoustic Foam. It is self-adhesive, but for good measure I put some contact adhesive round the edge of each metal layer. I have covered a few hundred miles now and it has stayed in place. I should say that the company was suggested elsewhere on the forum, but it did not sound like it had been used at the time.

davekit wrote: ↑

Tue May 17, 2022 4:51 pm

Part 1 is under ‘Secret Life’.

Another common problem,
This is needed to reduce radio interference, as it is a plastic bonnet. I cut cardboard templates based on the metal layer, and wiped the metal with white spirit.

Replacement foam, 25mm thick,

I've removed the whole lot, no problems with interference to radio. and on the SS1 (all GRP / plastic) there is diddly screening and no problems, the radio on it works when aerial is 'stowed', which is a bummer as I spent ages fitting a new one prior to getting it from wreak to runner.

sound deading 2.5mm or twenty five mm?

Foam is definitely 25mm thick, i.e. one inch near enough. It is available in other thicknesses, but what remained of the original foam on the bonnet was 25mm so I stuck with that.