Hiya guys,
Need your advanced knowledge on this as need to find some bolts!!
On the rear flange of the Cat Converter to the centre pipe I believe there is meant to be 2 or 3 bolts, in mine there is one! Unsure if these are meant to be the sprung bolts or not??
If so where can I get them as can't find a supplier anywhere and if not what size bolts should I be using??
Cat to centre pipe bolt
Cat to centre pipe bolt
Free Parking is a bonus, leaving my Cav in a carbon dust filled carpark is not.....
- Envoy CDX
- Club Admin
- Posts: 9680
- Joined: Sun Sep 23, 2007 3:51 pm
- Location: Jarrow, Newcastle Upon Tyne
Re: Cat to centre pipe bolt
Rear of the cat to centre pipe, yes they are sprung. Front there this 3 bolts I used some nylocks from BNQ cos I was desperate. Held up for a few years.
Re: Cat to centre pipe bolt
Okay - looking at both ends of the cat box.
Depends on which system you have fitted.
If two bolts -
Two sprung bolts at the front, which bolt directly to threads in the down pipe flange.
If three bolts -
Three straight forward hex head bolts size M8 x 30 (unsprung) held to the centre section pipe by three 8mm nuts.
You could use self locking nuts or anti-rattle / shake proof / star washers to prevent the nuts coming undone.
All bolts are still readily available from Vauxhall.
I bought a set of front bolts and springs from my local dealer about 12 months ago.
The rear nuts and bolts can be bought from any screw / tool supplier.
The sprung bolts are used at a flexible joint.
They use a bird's net like gasket ring inside the flaring of the joint.
Depends on which system you have fitted.
If two bolts -
Two sprung bolts at the front, which bolt directly to threads in the down pipe flange.
If three bolts -
Three straight forward hex head bolts size M8 x 30 (unsprung) held to the centre section pipe by three 8mm nuts.
You could use self locking nuts or anti-rattle / shake proof / star washers to prevent the nuts coming undone.
All bolts are still readily available from Vauxhall.
I bought a set of front bolts and springs from my local dealer about 12 months ago.
The rear nuts and bolts can be bought from any screw / tool supplier.
The sprung bolts are used at a flexible joint.
They use a bird's net like gasket ring inside the flaring of the joint.
Re: Cat to centre pipe bolt
Cheers lads!! Appreciated as ever
Free Parking is a bonus, leaving my Cav in a carbon dust filled carpark is not.....