Header wrap and exhaust re pack

[nic.day]

my very very old exhaust wrap is falling apart and burning now. So a winter job I think I might attempt is to have ago at re wrapping them - how hard can it be?? as the famous saying goes. 

So what is the go to wrap of choice these days - I have no idea as mine was done when I got the car.

Also I think with the exhaust off I will have a go at re packing the silencer as well - confidence I am feeling now!!! But I am sure there will be swearing and questions of why did I start this etc etc

Any issues I need to think about before attempting this big job? (big for me)

[ScottR400D]

I've wrapped a few exhausts in the past, though I reckon I'd go for a ceramic coating these days. 

Only thing to look out for, IME, is not to wrap too far along a single pipe, should the pipes run close together, you need to stop then wrap over the pair or group of pipes. Easy if the pipes are on the engine of course but I've seen single wraps made and then the pipes don't fit back on! 

[Drumster]

On my Zetec I used 2" wide DEI Titanium exhaust wrap (2 x 15' lengths). Not too unpleasant to handle and it doesn't need to be soaked in water to put it on. I found the easiest way by far is to remove the primaries, bolt them one at a time to a suitable bit of wood and clamp the wood in a vice. This will give you plenty of room to work with and is much easier to pull the wrap tight. I never got on with the stainless steel cable ties so have always used a suitably sized stainless steel jubilee clips.

See this thread re exhaust packing which helped me

 

[nic.day]

Thanks for the notes. I know I should take the primaries off to do it. But is it possible with them in situ?

[Roadsport06]

I have the same wrap fitted as Aeroscreens, fitted to a standard exhaust on a k series in S3 chassis. I fitted it in situ.

[SLR No.77]

If you want to do a really good job, use the 1" version and wrap with the pipes off, the narrow tape will wrap better around the tighter contours. It's also common to soak the tape and wrap the pipes with it wet.  
Check clearances before removing the primaries though in case there's any tight gaps that might be an issue.

However ... I've wrapped the pipes on both my previous and current cars but have now removed it and won't be re-wrapping.  I had an issue with my SLR where I discovered the plastic cam pulley cover had melted around a couple of the brass ferrules where it's bolted to the front of the head. I could only assume this was due to unusually high temperatures in the cylinder head, which in turn, rightly or wrongly I decided could be related to the exhaust wrap increasing the cylinder head temperature. The heat certainly needs to go somewhere.

Just my personal experience.

Stu.

[Wrightpayne]

I used cool-it thermo tec on mine. At the time you used a spray paint to 'seal' it - not sure if this is still the process.

I used a Sealey jubilee clip kit where you made up your own clips from a band of steel. I liked this as it was quite thin compared to a standard jubilee clip.

https://www.sealey.co.uk/product/5637190556/self-build-hose-clip-set-8mm-band-width

[pkw2704]

just landed a 421 system and thinking of using the sleeve stuff  called DEI speed sleeves,not too tight but enough to protect the area,bought the V8 header so i have plenty of spare

[7 wonders of the world]

DEI speed sleeves:

Take your bonnet off and people will think you've got Nora Batty trapped under their.......  

[nic.day]

I am going for it!!

I have ordered some 2'' Lava wrap and some locking wire instead of the rubbish ties included.

Also ordered some Acousta-Fil Exhaust Silencer Packing from Demon Tweeks - how tight does this need to be wrapped around the inner? I guess its wrapped until it just fits in and it expands with heat as the instructions say. 

Wish me luck!!! 

[pkw2704]

yes it could look a bit Nora batty,come on ,dont tell me youve not thought about nora?...lol

Idea is to stitch/staple the sleeve  tighter then use the clamps