Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: amba on 10 September 2010, 13:47:16

Title: Bolt Size or P/No
Post by: amba on 10 September 2010, 13:47:16

The joining flange from the cat pipe to center pipe is joined by 2 studs with nuts.

Are these studs the same size as manifold studs ?

Title: Re: Bolt Size or P/No
Post by: Big_Roger on 10 September 2010, 14:53:52

Hi,
The studs and nuts for the exhaust pipe flanges are 8mm. Don't know about what manifold nut size is.

When I fitted new Xhaust cat back to mine, 2 of the studs broke.
I drilled out all the holes to 8mm and used 8mm x 50mm stainless set bolts and nuts.

Existing studs are HT steel not easy to drill. Start with small drill size and then increase in stages I found made it easier.


Roger

Title: Re: Bolt Size or P/No
Post by: Marks DTM Calib on 10 September 2010, 14:59:05

Centre section to cat uses M8 bolts of the stainless variety (although you will probably find some exhaust muppet has fitted zinc pass ones which will ahev rusted in solid!)