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987S IMS Failed - Excuse to 3.8?

Discussion in 'Motors' started by Kingy, 15 May 2015.

  1. Kingy

    Mobster

    Joined: 18 Oct 2002

    Posts: 3,403

    Location: Leicester

    The engine in my Boxster is toast. A second hand engine looks to be cheaper than a rebuild, but what is involved with swapping the engine out of a crashed 997S instead of another 987S?
     
  2. Housey

    Man of Honour

    Joined: 21 Feb 2006

    Posts: 26,650

    Don't think it fits
     
  3. Gibbo

    Commissario

    Joined: 17 Oct 2002

    Posts: 33,745

    Location: OcUK HQ

    What year was your Boxster?
     
  4. Dr House

    Capodecina

    Joined: 17 Oct 2002

    Posts: 13,216

    Location: London / Prague

    give Hartech a call
     
  5. monkey_boy

    Wise Guy

    Joined: 15 Aug 2006

    Posts: 1,729

    Location: Leicester UK

    'Was'. Ouch :(
     
  6. Kingy

    Mobster

    Joined: 18 Oct 2002

    Posts: 3,403

    Location: Leicester

    2004/54, one of the first 987s...
     
  7. panthro

    Capodecina

    Joined: 19 Nov 2004

    Posts: 11,853

    Location: Wokingham

    Call Ray at Northway.


    The 3.8 fits in a Cayman.
     
  8. Gibbo

    Commissario

    Joined: 17 Oct 2002

    Posts: 33,745

    Location: OcUK HQ

    Big shame but yeah the 04/54/05 models have the earlier more prone revision of IMS. :(
     
  9. Virdi

    Mobster

    Joined: 11 Jun 2004

    Posts: 4,161

    Location: Middlesex, London

    Sorry ...but how do you know the engine is toast?
     
  10. zegna

    Hitman

    Joined: 31 Oct 2011

    Posts: 615

    Location: London

    Put a 1.2l in it.. now that would be a true sleeper
     
  11. Gibbo

    Commissario

    Joined: 17 Oct 2002

    Posts: 33,745

    Location: OcUK HQ

    Because the IMS has failed as the OP has stated.
     
  12. RSR

    Sgarrista

    Joined: 17 Aug 2006

    Posts: 8,821

    This!
     
  13. Kingy

    Mobster

    Joined: 18 Oct 2002

    Posts: 3,403

    Location: Leicester

    "Hmmm, that sounds odd"
    *smoke*
    "Oh"

    More or less what happened... :o

    It happened a couple of weeks ago, apparently spark plugs are crushed & a whole heap of other expensive oily stuff I don't understand... :(

    Specialist Cars of Malton & Revolution both said I could only swap like for like (M96.26 apparently), but Google suggests it has been done.

    I don't have the disposable income I once had, which gives me plenty of time to establish if swapping in a different engine would cost me four or five figures extra than I'm already looking at...
     
  14. tom_nieto

    Capodecina

    Joined: 18 Oct 2002

    Posts: 11,155

    Location: Birmingham

    Like for like with a secondhand engine would be cheapest, but the 3.8 would be full of win!
     
  15. Kingy

    Mobster

    Joined: 18 Oct 2002

    Posts: 3,403

    Location: Leicester

    It's just getting a handle on the realistic possibility / cost involved.

    I don't know what 997S engines go for, or what else if anything is required.

    If the total cost is going to be five figures then I'm not interested, but if it'd be under that then it'd be worth considering as it's going to cost thousands to replace like for like anyway...
     
  16. panthro

    Capodecina

    Joined: 19 Nov 2004

    Posts: 11,853

    Location: Wokingham

    A brand new short engine from Porsche is £2700 + VAT. No idea how much the labour is to fit it, but it will be comfortably under 5 figures.
     
  17. Kingy

    Mobster

    Joined: 18 Oct 2002

    Posts: 3,403

    Location: Leicester

    Where've you seen that?

    I don't really understand what bits are in the bottom end & what aren't, & there was speculation that the damage might not be limited to the bottom end.

    Does a 997S bottom end fit my top end? Does that equal 3.8?

    :o
     
  18. Rybo89

    Capodecina

    Joined: 13 Jun 2007

    Posts: 13,951

    Location: Chesterfield

    You are asking specialist questions on a nerd forum.

    Ring a Porsche specialist and get a proper answer.
     
  19. Vince

    Man of Honour

    Joined: 30 Oct 2003

    Posts: 10,870

    Location: Essex

    The ims is bottom end, its this bearing (picture from when I was rebuilding my 911's engine):

    [​IMG]

    [​IMG]

    It sits underneath the RMS

    [​IMG]

    When the bearing fails all manor of things go wrong but the top end is normally salvageable.

    The 3.8 litre and 3.4 litre heads have slightly different bolt patterns as demonstrated in this video https://www.youtube.com/watch?v=I9c-Xt-tiFU so you would need to modify almost everything when it goes back together. To be honest any changes in capacity will end up costing you a fortune as you will constantly end up having to engineer ways around things that don't fit.
     
  20. Tinders

    Soldato

    Joined: 1 Jul 2003

    Posts: 5,360

    Location: There's a voice that keeps on calling me.

    Even if the bottom end is gone, couldnt you get it rebuilt, ie new crankshaft and bearings? or is that now hoe it works on the Porsche.

    Ive even had a crank shaft reground in the past, but that wasnt too far gone.