Engine cover heat

[olfart]

Hello people - this is for you people who have older units with the 460 v8. How do you deal with all the heat that comes thru the engine (dog house) cover ?

[trackman]

When we had that type unit I installed insulation board under the turtle shell. Made a huge difference. Nowadays I bet they have even better stuff

[skigramp]

We had a '99 Adventurer that put out a lot of heat through the dog-house ...

I ordered some insulation from JC Whitney catalog ... it was fiberglass with reflective foil for the engine side ... they specified the glue to use to attach it ...

I helped reduce the noise and the heat

[FDC]

I got the same issue with my 98 Adventure. Boy does it get hot. I dread driving it in the summer.

[cb1000rider]

Our doghouse is fine. It appears to be foam insulated and has a reflective backing on the under-side. Everything around the doghouse gets warm, at least after hours of travel, but we'll be insulating that soon..

[olfart]

Thanks for the feedback people. I think I'll being making an attack on the doghouse cover soon. Last time DW and I were out was week of July 4th. And it was hot traveling from Pittsburgh to Columbus, Ohio and back. Even with both roof airs running and dash air - had all we could to get temp in front seats down to low 80s !

[FDC]

I found this Olfart;

http://http://www.jcwhitney.com/heat...?filterid=u0j1

[pcurt23]

I spent hours lining the doghouse with foil and insulation. It helped a little. I also found a hole in the doghouse that was like a heat vent. That helped a little. What helped the most was trading in on a DP and now the floor is both cool and quiet. Good luck.

[Davel]

I lined the actual dog house with a 3/4" foam product with a silver mylar covering to reflect heat. I then put a thin "Dynamat" type covering on everything from the windshield back to the transmission and out to the frame. It has a peel off cover that you then stick the product where ever you want it. I bought mine at Jeg's or Summit speed shop online. It's been on for several years and made a big difference in heat and noise. It's very easy to fit around odd shapes and took about 2 hours to put on with two people. It was under $200.00 and well worth it.

Good luck,

Dave

[kartvines]

I installed reflective bubble wrap, you can see it by following this link:

1983 Fleetwood Pace Arrow Motorhome Restoration Project: Installed a reflective bubble wrap insulation to the underside of my doghouse

[FDC]

kartvines

How did you attach it?

[kartvines]

FDC, if I recall correctly I used high temp glue, a staple gun and reflective metal duck tape.

[olfart]

kartvines:
How long ago did you install the bubble wrap under your engine cover ?
And did it really reduce the heat thru the cover ?
thanks

[FDC]

Is the bubble wrap reflectix? It sure looks like it.

[kartvines]

Yes it is reflectix and I installed it last year, only took one short trip in Feb and then my wife died in May and haven't even open the door since then, I think it made a deference, but I have not yet really have been able to give it a true real time test, sorry.

[DAN L]

Originally Posted by FDC

I found this Olfart;

http://http://www.jcwhitney.com/heat...?filterid=u0j1

this is a bad link.
i used a sound/heat insulation kit from jc whitney. the kit included spray glue and a roll of 2'' metal tape. the material that i used had foil on 1 side.
i installed the kit about 5 years ago and it is still working well.

[cb1000rider]

Here's what I find at JC Whitney (correcting the above link):
Bonded logic insulation 4x6 is $40 + shipping. It gets good reviews.

There is also something similar made by Great Southern, costs about 2x - but includes foam and vinyl - indicates that it's for heat and sound.

Both appear to be held on by "contact adhesive" - Basically Spray on rubber cement.. I like the 3m stuff personally, but I've had issues with rubber cement holding up to under-hood temps (on a vehicle with an added turbo)... So I'd glue/staple/screw.

This is next on my RV to-do list.

[Fishrug]

We just bought this coach and we are having intense heat problems not only from the doghouse but coming from the floor vents as well. The floor is uncomfortable to walk on with bare feet. The heat is also coming from the rear axle. Is this normal?

[YC1]

Dynamat Universal Hood Insulation - JCWhitney

I use welwood Contact Adhesive. A quart will do the trick. Buy a cheap roller and brush because they will be useless after. Get the "original" contact cement, not the crappy water based one. Be sure to let each side get tacky before bringing them together but be sure to get it right the first time. The noise reduction and heat reduction should let you drive without shoes.

[Shadowcatche]

Apart from needing insulation might be a question of why you need it, is there enough air flow?