12 replies to this topic

[vx220pete]

my brother has a Astra Coupe turbo and i believe it has the same engine as my vx so i thought u guy cud help,our mechanic says it has a cracked exhaust manifold but the part from vauxhall is around 940 +. he told me to go on ebay for a exhaust manifold gasket complete with turbo but why does it need a new turbo?????cos ive seen regals manifolds for like 500 but no turbo. any help would be great. Pete

[rasputin]

the exhaust manifold and turbo are one complete unit,£940-+seems too much i thought an astra vxr unit cost about £500

[vx220pete]

so would the new vxr fit???

[Pipo]

It can't be that difficult to weld the crack

[mikemph]

Welding cast items can be difficult the stress in the material builds up as the materials cools and contracts and can cause more cracking. The am pretty sure the turbo housing have a high magnesium content, so getting welding rods with the same or similar properties can be difficult. But having said that, it can be done. I would say buy VXR turbo is the best option. Yes they do fit

[Pipo]

Welding cast items can be difficult the stress in the material builds up as the materials cools and contracts and can cause more cracking.

The welding of a cast manifold is not so difficult. But afterwards you have to heat up the complete manifold and let it slowly cool down in a controlled manner, often done in a sand-bed.
Of course using the right welding material is important.

Edited by Pipo, 02 May 2007 - 02:44 AM.

[vx220pete]

so does the new vxr astra 06 manifold fit???or the vxr 220 one??

[jasvxt]

vxr astra 06 http://www.courtenay....uk/default.htm £485


Jas

[Guy182]

you'd prob need a remap though?

[slindborg]

Id verify that it comes with a new manifold first lol.........

[vx220pete]

wow confused now,think i ll give them a ring

[Steve Crisp]

It might not weld, but it will probably braize ok. Brazing is a lower temperature thing... Steve

[Guy182]

the astra VXR turbo is a complete turbo and manifold assembly for 500ish from courtenay.. best to buy that than the standard astra/vx turbo. stronger manifold and much better turbo.. get a remap though.