Jump to content


Photo

Vxt Complete Exhaust Removal Turbo Back - Help Pls ?


  • Please log in to reply
9 replies to this topic

#1 Jester666

Jester666

    Member

  • Pip
  • 115 posts
  • Gender:Male
  • Location:South Wales
  • Interests:Fast cars, Superbikes,real ale,Elite Dangerous

Posted 04 June 2014 - 05:47 PM

Hi All

 

I am looking to replace the system, Turbo back with a Miltek system.

 

Have looked on here and cannot find a guide.

 

Providing I can get the bolts undone (soaking in Rostoff Ice as we speak) getting the main system off from the downpipe looks ok.

 

Does anyone have an idiots guide ?

 

My main concern is removing the pre-cat section which looks rather involved on TIS. Is there an easy way ? Does removal of the heatshield let you get at the clamp on the turbo and can this be done easily/how ? Will the pre-cat then come out with the lambda sensor in place (having disconnected from the loom) ?

 

Any comments/ guides/info greatfullly received ;)



#2 Pipo

Pipo

    Need to get Out More

  • PipPipPipPip
  • 876 posts
  • Gender:Male
  • Location:Belgium - Antwerp
  • Interests:Computer, automotive technics, electronics, MTB, Alpine ski, playing keyboard.

Posted 04 June 2014 - 09:16 PM

Loosening the clamp that holds the precat to the collector is the hardest thing to do.  I unscrew the clamp standing under the car as it is very difficult reaching it from the top with the clam on. 

First remove the lambda sensor if possible.  It makes removing the precat a lot easier because the sensor sticks through a hole in the heat shield.  It is possible to take out the precat with the sensor in place, but it's a lot more fiddling and you risk damaging the lambda sensor.

Then loosen the lower heatshield.  You can leave it in place, but undoing all fixing screws gives you the necessary space to get your hands and wrench in.

The circular clamp is spanned by a 3 inch long screw and a strong coil spring.  Spray some WD40 on the long screw.  Makes your work easier afterwards.  Loosen the spanning screw completely.  Then give the precat a light tap with a mallet and it will come loose from the exhaust collector.

 

In itself the job is not so difficult to execute, but you need easy access to the bottom of your car. 

 


Edited by Pipo, 04 June 2014 - 09:19 PM.


#3 Jester666

Jester666

    Member

  • Pip
  • 115 posts
  • Gender:Male
  • Location:South Wales
  • Interests:Fast cars, Superbikes,real ale,Elite Dangerous

Posted 04 June 2014 - 10:14 PM

Thanks Pipo an excellent description and does give me an idea of what is involved and sounds like disconnecting the hose from the MAF sensor etc is not necessary.I will look at getting a spanner on the Lambda sensor a 22mm I believe, and yes I can see that it will make dropping the Cat a lot easier.This will be replaced by a de-cat downpipe anyway so my only real concern is not damaging the heat shield or anything else in situ. Just out of interest is cutting the clamp screw easier and then just replacing it ?

 

Unfortunately I was going to attempt this lying down with the car on axle stands.

 

Cheers thumbsup



#4 siztenboots

siztenboots

    RaceMode

  • 26,614 posts
  • Gender:Not Telling
  • Location:Surrey
  • Interests:french maids

Posted 05 June 2014 - 07:44 AM

be careful not to damage the frail lower heatshield , new ones are expensive for what they are.

 

also use a new v-band clamp , the threads on the old one get attacked by the heat and prevent a good seal.

 

the hardest part is to get the alignment of the downpipe to the turbo and the rest of the system.



#5 Jester666

Jester666

    Member

  • Pip
  • 115 posts
  • Gender:Male
  • Location:South Wales
  • Interests:Fast cars, Superbikes,real ale,Elite Dangerous

Posted 05 June 2014 - 08:16 AM

Thanks Siztenboots.Will order a new clamp before I attempt this ! If I get the back box in situ but put the bolts in very loosely and the downpipe on firmly, I can play with the mid-section and still move the back box around to find the best fit , I hope.

 

It will all depend upon whether I have enough room to move around to get at the clamp bolt, or else it's a garage job,... yikes :(



#6 siztenboots

siztenboots

    RaceMode

  • 26,614 posts
  • Gender:Not Telling
  • Location:Surrey
  • Interests:french maids

Posted 05 June 2014 - 08:29 AM

compared to normal cars the system is very short , you will probably be cursing at the exhaust backbox hangers have rusted up.

 

also be carefull with the rear lamba sensor wiring it can be fragile due to the heat, and makesure you keep the heat shield covering the toe-link.

 

a good selection of new bolts will be essential and a dremel.

 

also, the standard turbo backbox will sell easily on here to the supercharger guys



#7 Jester666

Jester666

    Member

  • Pip
  • 115 posts
  • Gender:Male
  • Location:South Wales
  • Interests:Fast cars, Superbikes,real ale,Elite Dangerous

Posted 05 June 2014 - 08:36 AM

Thanks I have a dremel and have soaked all bolts in Rostoff Ice (twice so far) as they are rusted blobs. Will order some new bolts and the clamp. Thanks for the advice about the heatshield covering the toe-link and the fragile wiring on the rear lambda sensor ( really don't want to have to replace that).

 

Have a feeling that this will be a real pain !

 

Cheers mate thumbsup



#8 hairy

hairy

    Moonlander

  • PipPipPipPipPipPipPip
  • 6,064 posts
  • Gender:Male
  • Location:Bristol
  • Interests:cars, beer, nature

Posted 05 June 2014 - 06:47 PM

Keep us posted Jester, its on my job list too - would be happy to come over the bridge and share the learning.



#9 Jester666

Jester666

    Member

  • Pip
  • 115 posts
  • Gender:Male
  • Location:South Wales
  • Interests:Fast cars, Superbikes,real ale,Elite Dangerous

Posted 05 June 2014 - 09:06 PM

Keep us posted Jester, its on my job list too - would be happy to come over the bridge and share the learning.

 

Going to try removing the bolts from the heat shield to look at access and then see if the blobs that once were exhaust hanger bolts can be turned, if all looks good will pm you so that you can come to have a look .

 

Otherwise its a garage job and time to start saving :(  



#10 hairy

hairy

    Moonlander

  • PipPipPipPipPipPipPip
  • 6,064 posts
  • Gender:Male
  • Location:Bristol
  • Interests:cars, beer, nature

Posted 05 January 2015 - 08:50 PM

How did things work out Jester?






1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users