Dangerous Anti Thermal Wrap?

[Guest paisesmediterraneos]

Hello, I am almost convinced to use anti thermal wrap envolving the outlet manifolds because of the heat under bonnet in my 2B+...but I read in internet that it could cause crashes in the manifolds weldings because of the higher temperature of the steel, what do you think about that??, any experience about that??.

 

Thank you very much, best wishes and Merry Christmas, David.

[tractor]

don't now wot engine you have never had a problem with my 2b I would not use exhaust rap as you say puts higher temperature into manifold not good maybe just needs more ventilation of engine bay

[maccavvy]

ive had my wrap on for 2 years. seriously reduces manifold temp. but as a result the box gets warmer.

never had any issues myself.

 

but there will be some horror stories somewhere.

[Guest paisesmediterraneos]

Hello Marcus, my english is not very good, I am from Spain, when you say the box gets warmer...do you mean gear box...or other part of the engine??.

 

Thanks a lot.

[maccavvy]

sorry I meant the exhaust box ,or can.it moves the heat further down the system

[Grim]

I think cast iron manifolds can crack but many people on here wrap their tubular steel manifolds with no problems

[keith kelly]

my zero manifold cracked at the welds without and wrap on it! don't think it would make a difference and depends on the quality of the welding.

[Jez Morton]

Had wrap on mine since built, 6 years and no issues.

[Guest Phil_neast]

My manifold weld gave way in June. I took it to a stainless exhaust specialist who managed to weld it but said it had been caused by the exhaust wrap. He also said it does long term damage to the metals composition meaning it becomes brittle.

 

I've taken it all off now and all seems well.

 

Happy Christmas

Phil

 

[Guest chris brown]

I removed mine after maybe 20k miles only to find the stainless was very rusty with rust flaking off I am sure that in another 10k it would have fallen to bits. I wire brushed it down and never had any more trouble. I for one would never use wrap again, just get the air out of the engine bay quicker. BTW exhaust was RHE four branch so not the best quality.

[MarkBzero]

The guys who made my exhuast in stainless steel said 'never use wrap' and they have been making exhuasts for race cars for years. Ashley's exhausts they done a really good job, highly reccommended.