What size inlet pipe on cat for VTS

  1. Regular Poster Joined: Mar 2012 Middlesex/Surrey Posts: 432 Saxo VTS MK1
    #1
    What size should the inlet pipe on a cat be i.e the side that connects to the downpipe on a mk1 vts ?

    Also do other models of saxo have a small inlet pipe on there cats as i got believing it was from a vts but the inlet pipe measures 1.75" as opposed to the 2" one which i took of the car.

    Thanks for any advice in advance
  2. Regular Poster Joined: Aug 2007 Havant, nr Portsmouth Posts: 406 Red 97 vts bought in june 2012 :)
    #2
    Quote:
    Originally Posted by GeeDawg View Post
    What size should the inlet pipe on a cat be i.e the side that connects to the downpipe on a mk1 vts ?

    Also do other models of saxo have a small inlet pipe on there cats as i got believing it was from a vts but the inlet pipe measures 1.75" as opposed to the 2" one which i took of the car.

    Thanks for any advice in advance
    The CAT on my 98 mk1 Vts is the same 1.75" or 45mm.
    Hope that helps.
  3. Regular Poster Joined: Mar 2012 Middlesex/Surrey Posts: 432 Saxo VTS MK1
    #3
    Hmm this is odd as the one i took of the car is 2" and the vts gasket i purchased is the same size as the one on the car.

    The problem with the smaller one is the gasket is to big so when i try to tighten to the downpipe it dont fit flush because of the gasket ?

    This is the gasket i got from old ebay.

    http://item.mobileweb.ebay.co.uk/viewitem?itemId=170687588258&cmd=VIDESC&index=0&na v=SEARCH&nid=09389759035
  4. Regular Poster Joined: Aug 2007 Havant, nr Portsmouth Posts: 406 Red 97 vts bought in june 2012 :)
    #4
    Quote:
    Originally Posted by GeeDawg View Post
    Hmm this is odd as the one i took of the car is 2" and the vts gasket i purchased is the same size as the one on the car.

    The problem with the smaller one is the gasket is to big so when i try to tighten to the downpipe it dont fit flush because of the gasket ?

    This is the gasket i got from old ebay.

    http://item.mobileweb.ebay.co.uk/vie...id=09389759035
    Strange..I just fitted a decat and it was 45mm.. here is the item id: 370318911437

    I think you need an expert.. and I'm definatly not one sorry.
  5. Regular Poster Joined: Mar 2012 Middlesex/Surrey Posts: 432 Saxo VTS MK1
    #5
    ok here are some pics that explain the problem better

    Old cat with worn and blacked gasket



    Replacement cat with 2" VTS gasket which fits old one but as you can see it is clearly to big for a pipe of 1.75"



    How replacement cat looks on car as i can not get the cat and downpipe to mate to together due to gasket size



    So can anyone offer any futher help ?

    Also the spring on the bolt which side is this supposed to be on as i cant remember from when i took it off lol
  6. Frequent Poster Joined: Aug 2010 Le Mans, France Posts: 976 VTS, Hawkeye WRX, Def90 & Freelander HSE (ex-VTR)
    #6
    1.4

    I bought a 1.4 VTS Cat and it fits my 1.6 VTS but the inner pipe is smaller (as in your photo) - I'm using plenty of Holts style sealant to get it through the French MOT and will then be putting the de-cat back on.

    Reason I bought the 1.4 one was it's a "Walker" (I think) and was 100€ new rather than the 600€ Citroen wanted for the 1.6 VTS one. Mine came with a "smaller/correct size" gasket though.

    Hope this helps
  7. Regular Poster Joined: Mar 2012 Middlesex/Surrey Posts: 432 Saxo VTS MK1
    #7
    Problem is i cant seem to find a smaller gasket as i i dont know what car the cat is from as all the ones i can find dont state the size just what car they are for not sure i really dont want to pack it with sealant as if that gets in the cat its fucked grrrrr.
  8. Frequent Poster Joined: Aug 2010 Le Mans, France Posts: 976 VTS, Hawkeye WRX, Def90 & Freelander HSE (ex-VTR)
    #8
    In France it's a 1.4 VTS so I would assume that it's a 1.4 "Something" in the UK - couldn't be more exact I'm afraid - need to ask someone with a 1.4 Saxo

    Edit: Found this >> http://www.ebay.co.uk/itm/CITROEN-SA...item1c23644e1c

    Maybe worth a quick email to seller to ask size
  9. Regular Poster Joined: Mar 2012 Middlesex/Surrey Posts: 432 Saxo VTS MK1
    #9
    This is the seller i got the gasket from but he dont state sizes ?

    But i have been investigating online but cant find anything about the sizes but i have found this which might just work subject to the depth as it looks the same ?

    http://www.ebay.co.uk/itm/1405035543...84.m1423.l2649
  10. Regular Poster Joined: Mar 2012 Middlesex/Surrey Posts: 432 Saxo VTS MK1
    #10
    Can anybody help as to what model of Saxo this cat has come from ?
  11. Frequent Poster Joined: Aug 2010 Le Mans, France Posts: 976 VTS, Hawkeye WRX, Def90 & Freelander HSE (ex-VTR)
    #11
    It's not the model you need it's the engine size and I've already answered that question I think ??????????????
  12. Regular Poster Joined: Mar 2012 Middlesex/Surrey Posts: 432 Saxo VTS MK1
    #12
    Quote:
    Originally Posted by LVC View Post
    It's not the model you need it's the engine size and I've already answered that question I think ??????????????
    I know what i meant about model lol but i want confirmation as you said you was not 100% sure and then the guy above said his was 1.75" on a VTS ?