Any ideas on what to use RE-insultating engine compartment?

[Busted Knuckle]

OK I need to re-insulate an engine compartment, there had been a turbo fire that melted a lot of the insulation above the engine. There is no structural damage, and every thing else is repaired. My question is what should I use to re-insulate the area that melted out, or even the entire compartment? I've been reading the exhaust wrap thread which I find very interesting, and am very seriously considering also while I'm at it. Thanks BK 

[Dallas]

Bryce,
In the olden days I would use asbestos millboard covered with galvanized steel, with about a 1/8" standoff.

I'm not sure if you can still buy it, but if you can it will be available at places specializing in wood stoves and home heating.

Dallas

[tekebird]

I would look for some of the marine engine comaprtment insulation.  that stuff will give the best performance and life

[belfert]

How does a turbo start on fire?  An oil leak from the oil feed?

[Hartley]

http://www.adlinsulflex.com/

Something here might do the job...

Dave...

[Busted Knuckle]

How does a turbo start on fire?  An oil leak from the oil feed?

Well that's one way! Or if a bearing seized and a non-attenative (or caring) driver kept driving it until it overheated to the point of ignition! Or I really don't know, why, or care how it caught fire I'm just trying to figure out how fix the damage after it happened! (didn't happen too me). I'm looking for solutions to the damage not causes! BK 

[luvrbus]

I have a piece of ehp left thats about 2ft w and 8ft long if that would be big enough for what you need (free)

[pipes]

I am just about finished with insulating the floor erea over the engine on my 05 Eagle.
I had to raise the rear portion 2" (At about 32" fore n aft on top of the next cross frame) to clear the air horn after installing jake brakes,

Then inside of ALL the frame works over the engine I welded 3/4" angle iron flush with the bottom of the  1/1/2" to insert 1/2" cement backer board in each square leaving about 1" to put fireproof insulation on top of that..also used  plaster of paris over/betwixt the horizontal side frames about 2"thick..

ALL original access areas And more are covered with fire panted 3/4" plywood All removeable with RIVNUTS and !/4-20 scews,,,,,,,,,,,Also did the same over all wheel wells including new STEEL plating underneath........Ken

[Dreamscape]

This topic is very interesting. I want to insulate and heat protect the genset bay, along with the engine compratment . By doing that I hope to acheive a sound barrier also. What is the best material to use? I have read a lot on this subject on various boards, some many differant ideas.
Bottom line is WHAT IS THE BEST AND USER FRIENDLY MATERIAL TO USE?

Thans BK for starting this thread!

Thanks,

Paul

[NJT 5573]

Hi Busted Knuckle!

On my old 05, I reworked the area above the engine. The floor was just plywood! I used new plywood and a layer of the race product available at Longacre Racing Products under it. It was $30 bucks a box then and I used several boxes. Under that and closest to the engine I used heavy aluminum sheets that were bolted with fender washers back through the plywood and insulation to make a sandwich.

It was pretty quiet and I know it would have given me a fair chance to put out the engine fire I never had. One layer should be enough but 2 layers and you could probably sleep through an engine fire and be OK. My area above the engine was made up of about 5 pieces and I pretty much kept that configuration with the panels I made. I fabricated it so the cross bars left room for the turbo to have a home in the future and the floor pieces were still not to hard to remove.

Ref; Aluminized Insulation Cloth 60x24, stock #6415, now $56.95, longacreracing.com

[kyle4501]

Well that's one way! Or if a bearing seized and a non-attenative (or caring) driver kept driving it until it overheated to the point of ignition! Or I really don't know, why, or care how it caught fire I'm just trying to figure out how fix the damage after it happened! (didn't happen too me). I'm looking for solutions to the damage not causes! BK 

If I KNOW the causes, it is easier to ensure I am fixing the problem, not just patching over a symptom. That is why I try to learn all I can before I repair damaged stuff.

BK, I don't have your experience, so I'll sometimes ask annoying questions. Thanks for sharing your knowledge.

[Busted Knuckle]

Well that's one way! Or if a bearing seized and a non-attenative (or caring) driver kept driving it until it overheated to the point of ignition! Or I really don't know, why, or care how it caught fire I'm just trying to figure out how fix the damage after it happened! (didn't happen too me). I'm looking for solutions to the damage not causes! BK 

If I KNOW the causes, it is easier to ensure I am fixing the problem, not just patching over a symptom. That is why I try to learn all I can before I repair damaged stuff.

BK, I don't have your experience, so I'll sometimes ask annoying questions. Thanks for sharing your knowledge.

Kyle ( & Brian) I apologize for not knowing the cause of the fire (or truthfully if it was the turbo!)! I only know the owner of the bus told me it'd had a TURBO fire! I asked if it was a turbo fire or an exhaust fire and he said it definetly was in fact a turbo fire! He didn't go into specifics, only that the turbo had been replaced, and the wiring and hoses had been repaired. And the only thing remaining to fix is the insulation damage. I am just looking for the best way to fix it as I've never had too do this before.  BK

[JackConrad]

Dave Galey had a fire start in his bus when a crack in the exhaust tubing heated the wood framing under his bed catching the plywood as well as the mattreess on fire. That is one of the reasons we added an alarm system that monitors the air temperature in the engine compartment.  Jack

[belfert]

Kyle ( & Brian) I apologize for not knowing the cause of the fire (or truthfully if it was the turbo!)! I only know the owner of the bus told me it'd had a TURBO fire! I asked if it was a turbo fire or an exhaust fire and he said it definetly was in fact a turbo fire! He didn't go into specifics, only that the turbo had been replaced, and the wiring and hoses had been repaired. And the only thing remaining to fix is the insulation damage. I am just looking for the best way to fix it as I've never had too do this before.  BK

I had never heard of a turbo fire and was curious how one would happen.  I didn't mean to drag attention away from your original request.

I don't what the stuff is called they use in a Dina for engine bay insulation, but I'm sure you have seen it on Bobby's Dinas.  It would probably not be my choice for insulating material if I had to replace it.  It is but one option amongst many.

[Busted Knuckle]

I had never heard of a turbo fire and was curious how one would happen.  I didn't mean to drag attention away from your original request.

I don't what the stuff is called they use in a Dina for engine bay insulation, but I'm sure you have seen it on Bobby's Dinas.  It would probably not be my choice for insulating material if I had to replace it.  It is but one option amongst many.

I have heard of turbo fires, but they aren't common. Mostly caused by lack of oil, for what ever reason. Like broken oil line, bad seal, or whatever! I've seen more fires caused by holes in the exhaust such as Jack mentions, and that Cliff had. FWIW BK