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Author Topic: Exhaust & Turbo Insulating  (Read 2116 times)
Sam 4106
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« on: October 16, 2012, 01:26:35 PM »

After our trip to the cancer clinic at the University of Iowa in Iowa City, tomorrow through Sunday, we will be putting the bus away in my heated shop for the winter. I have been planning a few projects for the next several months including insulating the exhaust pipes and turbo. Is it feasible to also insulate the exhaust manifolds? Would it help to insulate the muffler too? What is the best source of the materials? Any suggestions will be appreciated.

Thanks, Sam
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1976 MCI-8TA with 8V92 DDEC II and Allison HT740
gus
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« Reply #1 on: October 16, 2012, 01:46:37 PM »

The EHP wet blanket is the good stuff I always use.

Go to their website http://www.engineheatprotection.com/

Most helpful people I've ever seen, always gave me personal service for my small orders and are eager to help you with any special requirements.
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PD4107-152
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Ash Flat, AR
luvrbus
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« Reply #2 on: October 16, 2012, 01:58:24 PM »

We all do it different I don't care for the tape or the wet blanket me with the 8v92 I would buy the removable type from someone like Firwin or others manufactures and do the manifolds also JMW I had those on my Eagle for years but it will cost you lol, and I would not do the muffler  

The last set I purchased was from Ca, Advanced Thermal Products www.atpwrap.com
« Last Edit: October 16, 2012, 02:20:54 PM by luvrbus » Logged

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Sam 4106
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« Reply #3 on: October 16, 2012, 02:47:10 PM »

Hi Clifford,

I hoped you would respond. I saw the insulation job you did on your 8V92 in June when we were in Medora, ND and got together with Matt and Carolee. I liked what I saw and that's what got me to thinking about doing that on our bus. Can the insulation from Advanced Thermal Products be removed, without damage, and reused if you have to change the manifold gaskets or work on the turbo?

My wife may change my mind once I find out how much it costs. LOL Our bedroom gets quite warm after driving for a few hours and doesn't cool off enough before we go to bed. Is there any other benefit to insulating the exhaust and turbo, like increased boost?

Thanks, Sam
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1976 MCI-8TA with 8V92 DDEC II and Allison HT740
luvrbus
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« Reply #4 on: October 16, 2012, 02:55:51 PM »

Yes it is removable Sam I still have the manifold wraps that will be covered in Matts warranty lol
« Last Edit: October 16, 2012, 04:33:28 PM by luvrbus » Logged

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Zeroclearance
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« Reply #5 on: October 16, 2012, 04:09:14 PM »

Another vote for the ATP system.   I had them build blankets for my S60 exhaust manifold, turbine housing, downpipe and valve cover.   It's amazing how quiet it us up in the bedroom with the blanket installed.   The HEAT generated is alot less and noted also in the bedroom.

The folks are great to deal with at ATP.   I had them redesign the turbocharger turbine blanket.   I helped them redo there pattern for the actuators.

It's a great product..
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Gordie Allen
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« Reply #6 on: October 16, 2012, 07:12:42 PM »



I wrapped my manifold with three layers of 2" and 1" width fiberglass composite for about $70.00, and took about an hour - most of that figuring out the best wrapping pattern.  Don't know how that compares with the other options.  I bought 1" glass blanket to wrap mufflers and insulate engine compartment above the manifold, but have not installed yet.
« Last Edit: October 16, 2012, 07:33:04 PM by Gordie Allen » Logged

Augusta, MI
1956 4104
DD 671
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« Reply #7 on: October 16, 2012, 07:21:24 PM »

Bad idea to wrap a cast iron manifold on a 2 stroke with that type wrap fwiw Grodie
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Gordie Allen
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« Reply #8 on: October 16, 2012, 07:39:10 PM »

luvrbus,
What's the issue?  Too hot?  Too much expansion?  I don't want a cracked manifold.
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Augusta, MI
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eagle19952
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« Reply #9 on: October 16, 2012, 08:09:26 PM »

these are nice.


http://removable-insulation-blankets.firwin.com/viewitems/engine-insulation/detroit-diesel-engine-insulation?&pagenum=2
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Boomer
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« Reply #10 on: October 16, 2012, 08:26:35 PM »

Harco Mfg. in Portland made my wraps.  Similar to the pieces that Clifford had made, stitch them together with stainless wire.  I did everything from the turbo downstream, Cummins engineering did not recommend a turbo wrap.  I also wrapped the CAC pipe and muffler as it is in the stock location for a model 10, above the tailgate. Used the same 1200 deg. insulation for the panels under the bed, we have a cool bedroom when we stop.
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wayne
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« Reply #11 on: October 16, 2012, 09:50:11 PM »

I used the ATP wrap that Clifford suggested. Fantastic stuff, wonderful fiit. I have taken it off and reinstalled without any issue. I did the complete system all the way to the exhaust tip. The people at ATP are great and will work with any design you have, not cheap but it does make a difference.

Good Luck
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rusty
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« Reply #12 on: October 17, 2012, 06:04:00 AM »

I put the ATP wrap on 8 years ago. When I got home from Branson I noticed a small exhaust leak. I am in the process of removing the blanket to check everything. I thought the blanket would be dirty and need to be replaced. I was amazed how good the inside of the blanket looked. Had a few black spots but most of it was still white. It is easy to remove and replace. I will definitely be using it on my 15 and will use from turbo to where the exhaust exits the coach. It makes things a lot cooler in the engine compartment.

Wayne
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wagwar
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« Reply #13 on: October 17, 2012, 05:38:24 PM »

I have the 6V92T DD. Should the cast manifolds be wrapped or just the turbo and exhaust pipe?  Why should you not wrap the cast manifolds with the tape as shown above?

TIA
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luvrbus
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« Reply #14 on: October 17, 2012, 06:28:52 PM »

Cast if allowed to cool and heat fast will become brittle and break I replaced several on DD that broke wrapped with tape,Thermo/Tec has a warning on the package about wrapping cast iron manifolds on their wrap packaging

good luck
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