New dogbone and mounts ... rattle?

[bakertom91]

Just fitted a new rear exhaust rubber (powerflex) and a new doggone upfront (again powerflex). All went well until I got her off the ramp and started her up ... Huge rattlingrattling on idle and revs.
Reckon it's just a heatshield issue or could the mounts be too stiff?

Pictures to follow. Any help would be awesome.

 

[clancy]

Heat shield probably, can you put it back on the ramp whilst running and have a nose ?

 

[bakertom91]

Yes mate going to get it back up tomorrow

 

[N4TH4N]

What a coincidence. Did my dog bone today and mine did exactly the same but seemed to calm down after a bit but is still there. I might just take the heat shield off

 

[clancy]

Be very surprised if it's anything else, nothing else you've done would cause it. If the clips are broken just rip it off, tried to many times to get broken ones to stop rattling it's nit worth the time or effort lol

 

[R14LYX]

It's possible to get the dog bone the wrong way round and it rattles

 

[bakertom91]

UPDATE
Took the rear heat shield out ... no change, still violent vibrating when idling and under revs.

R14LYX: Heres a pic of the dogbone, right way?

Cheers

 

[clancy]

Couldn't spot any thing under the car with it running ? Exhaust isn't touching the bracket that's just there to catch the exhaust if it's snaps is it ? My golf is atm and that sounds horrendous

 

[bakertom91]

No mate, got under, had a good look all the way from manifold to the back box, was close to the heat shield so she came out, but nothing else is ay where near. Guessing it must be the stiff new exhaust mount???

 

[Diagro]

Black powerflex?

No wonder

 

[warwickstingray]

Black powerflex is not for road cars but may not be the issue.

 

[Stefan.]

will be because of the new dogbone mount.

 

[N4TH4N]

@bakertom91

Had same issue when changing my dogbone. It's highlighted an issue with a clamp on the cat not clamping the middle section thoroughly causing a rattling pipe. Could well be your issue also.

As mentioned in http://www.cliosport.net/threads/exhaust-gaskets-clamps-etc.764834/