Exhaust vibrations

1. Reevesie Infrequent Poster Joined: Jan 2010 Petts Wood, Kent Posts: 176 MK1 VTR, MK2 VTR

   #1 5th February 2010, 23:14

   I have a 99 mk1 vtr, with pipercross induction kit and backbox. Recently when drive it has sound like the exhaust has been scraping but when i have looked under the car there has been enough clearence. So on the drive to day i put it in 1st gear with the hand brake on and put the revs up and the noise started so i opened the door keeping it on the revs and bent round and looked under the car and the exhaust around the middle section where the cat is was shaking a lot making the rattling sound i could hear. Any idears?
2. Andys_VTR Established Member Joined: Jun 2009 Edinburgh Posts: 1009 1998 persian red Vtr

   #2 5th February 2010, 23:49

   dont know if its coisodence but since i fitted my pipercross iv not noitced the same
3. Reevesie Infrequent Poster Joined: Jan 2010 Petts Wood, Kent Posts: 176 MK1 VTR, MK2 VTR

   #3 5th February 2010, 23:58

   hmm not sure, it has been fitted a long time with no problems?
4. Andys_VTR Established Member Joined: Jun 2009 Edinburgh Posts: 1009 1998 persian red Vtr

   #4 6th February 2010, 10:11

   my dad rekons handbrake cable vibin on ehaust
5. coleman258 Established Member Joined: Nov 2008 Eastbourne Posts: 2474 Astra van daily Black Saxo VTR 16v'd kent PT51

   #5 6th February 2010, 11:23

   Could be a few things really,
   1. Get under the car and see if anything obvious is loose
   2. See if any of the clamps are knocking on the heatshield
   3. See if the actual heatshield is loose
6. kw3lauren Newbie Joined: Feb 2010 london Posts: 8 mk 2 saxo

   #6 6th February 2010, 17:54

   i had same problem and couldnt figure it out.then i realised there was a spare wheel holder ,under the back of the car. i tightened it up from the boot ,problem solved .
7. Tontsy Saxperience Addict Joined: Oct 2008 Plymouth, Fiddling - under a two poster ramp Posts: 14064 Audi

   #7 6th February 2010, 17:59

   could be heatshield . . . could have plenty of clearance when you look but its not untill the engine moves the zorst moves that bit more and catches.
   
   could be h brake cable
   
   could be rubber hangers are wearing and causing abit more sag, giving more movement
   
   there is a bolt on the cat / centre section that bolts into the gear box, that could have broken, causingit to rattle.
8. kw3lauren Newbie Joined: Feb 2010 london Posts: 8 mk 2 saxo

   #8 6th February 2010, 18:03

   but like what coleman said,they are also things to check as it does sound like the heatshield could be loose or the pipe could be hitting the back axle
9. Reevesie Infrequent Poster Joined: Jan 2010 Petts Wood, Kent Posts: 176 MK1 VTR, MK2 VTR

   #9 6th February 2010, 18:25

   Thanks for all the helpful replys. I will get it up on the blocks tomorrow when its light and have a good look under there. I thought it was the hangers at the back box end at first so have ordered and just recieved some powerflex hangers will get them fitted as well when i look under there.
10. Andys_VTR Established Member Joined: Jun 2009 Edinburgh Posts: 1009 1998 persian red Vtr

    #10 6th February 2010, 18:53

    thanks ill look into this aswell guys cheers
11. Slugshead Established Member Joined: Jan 2009 Cardiff Posts: 1087 1.4 Red Westcoast Mk2 Posi Blue VTS

    #11 6th February 2010, 19:00

    I had the same thing mate...
    
    Took the zorst off and found that there was a plate welded on the bottom of the cat and one of the welds had come loose and it was flapping around making one hell of a racket.