Thread: Turbo Heat Shield

Hi Dave,


Got a second battery close by?


Radiant Heat - it cooks everything so having a cover or 'heat shield' around the manifold/turbo will reduce amount of radiant heat damage to components IE: battery, hoses, a/c compressor etc...


In fact, I recommend wrapping the manifold/turbo in a fibre-glass cloth and securing it with stainless steal wire/ties. It will dramatically reduce under-bonnet temps.
I can open the bonnet immediately after going for a decent run and place my hand directly on manifold/turbo for a few seconds without burning myself. Try that with-out fibre-glass wrapping! (okay, don't!)


Turbo chargers work their best with the HOT exhaust gases so wrapping won't do any damage. Large diesel engines (earth-moving and large stationary engines) generally all have the exhaust manifolds insulated.
Plus I think with the TD5 having the manifold slowly cool down can only be a good thing....




Oh....I just remember! To wrap your manifold you will first have to 'de-web' it as I did. No chance of doing it otherwise.


I will take a photo and post to show what I did...


All the best!


Jayden

so...here is what I've done.


I removed my ex. manifold for preventative measures. I had no broken studs or any evidence of leakage but as I'm about to embark on an 'all Aussie adventure' I decided to reduce the likelihood of broken studs etc considering the history with the TD5...


I was shocked to discover approximately 3mm bend or warp along the manifold face !! Thankfully I had access to a local head-facing machine of which it took me considerable time to machine out....


I then elected to drill stud holes out to 10mm, from memory, and went about replacing all studs - no problems!


I then carefully slotted and chiselled out the webbing between ports and gently ground it smooth to reduce the chance of it cracking.


After installing manifold, torqueing nuts etc, I spent considerable time to wrap the manifold/turbo with a fibreglass insulation tape. I secured the ends with stainless steel cable ties and I've gotta say I'm happy with the end result.


Have a look at the attachments.


PS: ebay is one place you can obtain the tape. Look here as an example: 10M Fiberglass Exhaust Header Turbo Pipe Wrap Insulation High Heat Tape | eBay




All the best, Jayden

Yes dave, I would 2nd the opinion to keep the shield in place, although it can be a pain in the rear when you want to do stuff around it! I think the benefit outweighs the downs.
Cheers Scott

Put the heat shield back on. It's there for a reason.

Originally Posted by twr7cx

Put the heat shield back on. It's there for a reason.

So are EGR valves and we all turf them. Engine cover, who still has them on?

The only reason I can see for the heat shield is for protection of the noise insulation under the bonnet. It is not going to have any effect on a fire wall mounted Aux battery as the shield is open at that end.

I like Disco 2 Driver's idea of wrapping the manifold in heat tape.

Originally Posted by d2dave

So are EGR valves and we all turf them. Engine cover, who still has them on?

The only reason I can see for the heat shield is for protection of the noise insulation under the bonnet. It is not going to have any effect on a fire wall mounted Aux battery as the shield is open at that end.

I like Disco 2 Driver's idea of wrapping the manifold in heat tape.

Some times i wonder why you bother asking questions When Obviously you have made you mind up before hand

Originally Posted by rangieman

Some times i wonder why you bother asking questions When Obviously you have made you mind up before hand

Far from it. I am purely looking for options and opinions. I am yet to decide which way to go, but I am actually leaning towards putting it back on.

Originally Posted by d2dave

So are EGR valves and we all turf them. Engine cover, who still has them on?

The only reason I can see for the heat shield is for protection of the noise insulation under the bonnet. It is not going to have any effect on a fire wall mounted Aux battery as the shield is open at that end.

I like Disco 2 Driver's idea of wrapping the manifold in heat tape.

and no correspondence will be entered into