Euromagination

Beside the fact that it's starting to droop a little bit in the usual spots right on the rear edge, I can think of a few other reasons why I want to rip the engine insulation out. For a couple weeks I considered using jimq's good idea of modifying a thin aluminum bar to hold the foam edge up to retain its good looks, but I think I just want the foam out altogether. I wouldn't mind having my engine bay just showing the white body paint in all background parts of the engine bay--no dark blue padding.

What are all of the cons of taking the engine insulation out? Is it not a good idea to remove the foam?

To those who I see in past threads have done it, would you do it again or wait?

Thnx,
Harry

springer3

More heat and more noise. You might cook the rear speakers.

jimq

I had it out on my 77S and SC. Wasnt much more noise but did have a bit more heat. Those engines were smaller so may not have put out the heat of the 964. Didnt notice speaker problems. Probably the sun puts more heat on them.

N51

Harry,

Since this is a problem we all will eventually face, I wonder if there isn't an alternative solution. Something lighter(I wish) and still effective in reducing sound and heat.

Noah

pete000

I have a friend who took it out of his SC and he said it did add a lot of heat to the cabin...

C H

Something I have been looking at upgrading since mine has fallen down and someone has ripped it half way off.

http://www.automotion.com/productpag...sound+proofing

It is a little pricey at $120 but not bad. Anyone try putting Hi temp dynamat up?

http://www.dynamat.com/products_auto...hoodliner.html

http://www.dynamat.com/products_auto...ynashield.html

MARC A. 964 C4

Since this seems to be a "GPWhite", thread and posting... I re-glued the heating / noise insulation and braced the edging in its proper placement with the help of vertically placed supports (thin ply)... The following day, as good as (almost) new. The day the engine is out at that time I’ll replace it as it should be done... I did this repair a few years already and it’s still in place...
Good luck,
Marc

Geoffrey

The sound pad is glued to the chassis, so removing the glue to expose the paint is a lengthy task. A new engine sound pad is $50-$75 and really looks nice when installed. I'd recommend just replacing it.

Euromagination

Okay, so you've all talked me out of that. Haha. Considering the fact that the 964's A/C system isn't the best, and I value A/C a lot, so I guess I'll suck it up and leave the pad in so it's not any hotter inside the cabin. Sounds like the smart thing to do.

I guess it's off to Home Depot for an aluminum bar. Thnx jimq.

Marc, what kind of glue did you use? What kind of glue would be best?

-Harry

axl911

I took mine out when I rebuilt my engine. Having done it with the engine out, I don't see how you can do it with the engine in unless you remove the entire intake manifold assembly.

I replaced mine with water heater insulation (the one with the silver foil coating on the outside). No heat issues, but I do hear alot more noise. Not just engine noises, but also road/tire noise.

Indycam

Mine was falling apart so I pulled all of it off . No heat / noise increase . It was made of foam , the foam
was rotten , so fixing it was not an option . Not much glue to deal with if any . I would do it again .

forklift

Does anyone know what the pad actually weighs? I have done a search and have read a few pounds to 10.

I only have 15 lbs. left to loose for my goal.

Thanks!

MARC A. 964 C4

Harry
Sorry its only now that I found your question. I used contact glue called "PATTAX". The two surfaces to be bonded to each other require a thin application, and only when mated does the actual, stick-to-each-other take effect. As it’s flexible, that one day in the future when I have the opportunity to remove the old insulation, I should be able to remove the rubberized glue from the engine bay bulkhead without damaging the paints/primers, etc...
Once glued and bonded, I braced the insulation tightly in place for 24 hrs... Its working great, so far...

Sorry again for such a late answer,
Marc...

Indycam

"Does anyone know what the pad actually weighs? I have done a search and have read a few pounds to 10. "
The pad that goes over the motor weighs very little . Its a sheet of foam . On my 89 , it did not weigh even one pound .

Euromagination

Thnx Marc!