Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Speaker Panels

Thanks Peter, yes I have an easy up hood. I don't think it was flapping it was more of a wind rushing sound. I think there was a bit of a cross wind that made it worse. I could have slowed down a bit I suppose but I needed to get home for an early start at work and to be honest I preferred the sound of Rosie ( with apologies to Bruce)

Interesting Peter. If you cover the gearbox cover with Dynamat you may have problems fitting the leather cover back on. There is a 1/4" or so of matting already applied to the inside of the cover as standard.

I was concerned about that, but based on a trial using corrugated card, the same thickness as the Dynamat, on each side of the gearbox casing there is enough room.

Even if it's yellow or black

Peter

I will eagerly wait to hear on your report of sound improvement, with the roof off and on. I have investigated this myself, and have to admit to having some sound insulation to fit under the leather covers next to the door and some sound/heat shielding to go at the bottom of the foot wells (the stainless exhausts on Rosie generate a lot of heat onto the footwells), I have also considered covering the floor and rear boards behind the seats with dynamite and around the gearbox casing (no insulation at all on my +8 around the gearbox). I have done nothing on this to date as you already said it is a major exercise requiring seats out and lots of fiddly bits. One area I am not sure if you've considered is the boxing immediately behind the doors, on my car they are empty boxes that basically act as a resonating boxes just above the silencers, so I was intending to fill them with a waterproof sound matting to stop this.

You want to cover the rear boards with Dynamite?????

Could I suggest that this might be unwise? Yes it may adsorb the noise for a while but the energy so captured will, one day, be released in a nanosecond, with interesting results!!

Seriously, I plan to start at the front and work backwards, Dynamat comes in boxes of 12 sheets. The floor, the panel behind the seats and the boxes behind the doors are a priority.

I have to take the seats out, at least the co-pilots seat, as it sits so low that she can't see out properly. Older Mogs had wooden blocks under the seat runners, lifting them 1". I plan to add such supports. A side benefit is that it will make the seat runners work more smoothly. As built the seat is bolted through the carpet which means they tend to flex, making adjusting the seat position a real trial.

I've booked a week off in late July: guess what I'll be doing?