Exhaust knocking on Torsion bar

1. Rootyuk Established Member Joined: Jun 2007 Falmouth Posts: 1079 saxo 1.1i desire

   #1 4th September 2010, 21:59

   The backbox seems to be knocking on the torsion bar and makes a horrible noise when in idle or pulling off.
   
   I have checked to see if both exhaust rubbers are intact etc and everything is fine.
   
   Any help??
2. Stevo123 Established Member Joined: Apr 2009 Redcar Posts: 1971 2000 Posi Blue vtr

   #2 5th September 2010, 21:41

   Adjust exhaust so it clears the rear beam, you can bend the hangers on the back box a wee bit.
3. dt_ Regular Poster Joined: Sep 2006 Huddersfield Posts: 393 Zx volcane td Peugeot 205 1600 auto

   #3 6th September 2010, 09:42

   Cable tie something soft to the beam where the exhaust is hitting to absorb the vibrations
4. Rootyuk Established Member Joined: Jun 2007 Falmouth Posts: 1079 saxo 1.1i desire

   #4 10th September 2010, 08:49

   had a look again and its the last 1-2 inches of the centre section that is knocking on the beam.
   
   Cant seem to wedge anything in or put a cable tie to absorb the vibrations because the c/s is tight to the beam, and i mean tight.
5. chinkostu Saxperience Post Whore Joined: Aug 2008 The wrong carpark Posts: 5152 Xantia 1.9TD

   #5 10th September 2010, 09:08

   mine did this, was me rushing the exhaust.
   
   undo the clamp and pull the tip down a bit, then rollock the bolts up. sorted!
6. dt_ Regular Poster Joined: Sep 2006 Huddersfield Posts: 393 Zx volcane td Peugeot 205 1600 auto

   #6 10th September 2010, 10:04

   take it back to where you had it done and tell them
7. chinkostu Saxperience Post Whore Joined: Aug 2008 The wrong carpark Posts: 5152 Xantia 1.9TD

   #7 10th September 2010, 11:07

   the reason is because the centrepipes hanger doesn't pull it any closer to the body, it just hangs there, so you have to prop the backbox up a little bit when bolting it on or the centrepipe will just lie against the t/b
   
   or, get a smaller rubber for the centre
8. FunkyDave Infrequent Poster Joined: Jun 2010 Preston, Lancashire Posts: 235 2001 Renault Megane 1.9DTi

   #8 10th September 2010, 12:28

   cable ties round the rubber mounts, use small ones or you'll basically soild mount the exhaust. that and bend the hangers down slightly, that sorted mine!
9. user_15516 Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS

   #9 10th September 2010, 13:04

   Sounds like your centre section is too close to the underside of the car. Undo the centre clamp and rotate the centre pipe down a bit towards the road.
   
   If it's a 'full length' centre pipe from the manifold back (can't be rotated), you may have to remove it from the car and dent it where it catches the torsion bar.
10. Pearson Established Member Joined: Sep 2009 Doncaster. Posts: 2115 Y' Reg MK2 1.6i VTR

    #10 10th September 2010, 18:41

    Quote:

    Originally Posted by Rootyuk The backbox seems to be knocking on the torsion bar and makes a horrible noise when in idle or pulling off. I have checked to see if both exhaust rubbers are intact etc and everything is fine. Any help??

    Hehe, your in luck dude, i had this problem not long since with my SS system, how low is your car on the back end?, what i did was loosen off the centre pipe olive clamp in the middle and also the backbox olive clamp, got someone to pull the tip of the exhaust down to roughly where you want it, as he was doing that i pulled the centre pipe down aswell and tightened the backbox olive clamp up and then tightened the centre pipe olive clamp up aswell, my centre pipe is roughly sitting | - | that much off the bar now and my backbox hangs about | - - - | that much off the recess, hope this helps, give it a go and get back to me dude .
11. wingnuts Established Member Joined: Feb 2010 Witham, Essex Posts: 2070 Baby blue Hyundai coupe siii

    #11 10th September 2010, 19:03

    i need to do this aswell mine knocks like a bugger
12. brosnan Established Member Joined: May 2008 Kent Posts: 1127 BMW X5 4.4 PETROL

    #12 10th September 2010, 21:29

    Quote:

    Originally Posted by dt_ Cable tie something soft to the beam where the exhaust is hitting to absorb the vibrations

    put a few cable ties through a piece or hose pipe and wrap around beam
13. chinkostu Saxperience Post Whore Joined: Aug 2008 The wrong carpark Posts: 5152 Xantia 1.9TD

    #13 11th September 2010, 21:11

    Quote:

    Originally Posted by Pearson Hehe, your in luck dude, i had this problem not long since with my SS system, how low is your car on the back end?, what i did was loosen off the centre pipe olive clamp in the middle and also the backbox olive clamp, got someone to pull the tip of the exhaust down to roughly where you want it, as he was doing that i pulled the centre pipe down aswell and tightened the backbox olive clamp up and then tightened the centre pipe olive clamp up aswell, my centre pipe is roughly sitting | - | that much off the bar now and my backbox hangs about | - - - | that much off the recess, hope this helps, give it a go and get back to me dude .

    this man speaks sense!
14. Pearson Established Member Joined: Sep 2009 Doncaster. Posts: 2115 Y' Reg MK2 1.6i VTR

    #14 11th September 2010, 21:13

    Quote:

    Originally Posted by chinkostu this man speaks sense!

    That sarcasm or . .