manifold/attached pipe heatsink

[adam1942]

Guys

 

under the car before the cat's there's a pipe that connects to the manifold (I think!) this has heat shields and they are rusted and rattling...

 

Can these be removed or is it a replacement job?

 

If its a replacement job is it possible to replace the manifolds without removing the engine or is it a big job?

 

any guidance would be great thanks.

 

adam.

Edited June 9, 2013 by adam1942

[adam1942]

It would seem that it's number 4 and number 1...

 

http://nissan4u.com/parts/350z/er_z33/2006_11/type_2/exhaust_and_cooling/catalyst_converter/illustration_1/

 

 

Anyone any how are these are to change?

 

Ta

 

Adam.

[KyleR]

1 and 4 are the cats, no need to remove the engine to replace them, but they'll cost a few quid!

[adam1942]

Thanks Kyle would these be any good? Ive a japspeed at the moment.. Looks like it'll still pass mot as well...

 

 

http://www.ebay.co.uk/itm/NISSAN-350Z-Z33-03-09-3-5-COUPE-STAINLESS-STEEL-SPORTS-CAT-EXHAUST-DOWNPIPES-/151030303635?pt=UK_CarsParts_Vehicles_CarParts_SM&fits=Car+Make%3ANissan%7CModel%3A350+Z&hash=item232a1b8b93

[ZMANALEX]

Just remove the heat shields from the cats to stop them rattling, however they are there for a reason.

 

There is also a heat shield on each exhaust manifold which can be removed in situ, but again it is there for a reason.

 

In reply to your final question, the exhaust manifolds can be removed insitu but expect at least 8 hours out your life and many skinned knuckles.

 

Alex.

Edited June 9, 2013 by ZMANALEX

[adam1942]

Alex,

 

what if i was to remove the heat shield and wrap the cats in exhaust wrap? Would that be ok?

 

 

cheers,

Adam.

[ZMANALEX]

Wrapping the cats with the heatshieds off would certainly reduce the heat transfer, however i would be a bit concerned that the cats would lose the air cooling and may run a bit hot.

 

You can all but try it as you can always remove the heat wrap if you do have any issues, just keep 999 on fast dial. :lol:

 

If you wish to stay with OEM cats with heatshields, I have a few decent preowned sets in stock.

 

Alex.

[cs2000]

The floor already gets hot with the heat shield attached, after a fast drive you can feel the heat in the passenger footwell, I wouldn't be too keen in removing them!

[adam1942]

Thanks guys - I'll have a think about it