Marius's Touareg R5 life thread. - Page 27




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  1. #521
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    good time to pop in lots of new gaskets

  2. #522
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    it's an auto so a clutch won't work

    Gaskets are minimal due to the design of the engine. But I will be replacing what I can.

  3. #523
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    Quote Originally Posted by MariusFourie View Post
    it's an auto so a clutch won't work

    Gaskets are minimal due to the design of the engine. But I will be replacing what I can.
    service torque converter?
    2006 T5 4Motion 174HP TDI Seikel Dakar STOLEN IN KALK BAY

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    A6 3.0 Multitronic 225HP


  4. #524
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    Quote Originally Posted by parafanaylya View Post
    service torque converter?
    Torque converter can't be serviced. It's a sealed unit.

    An oil change is on the cards soon.

    I'm not touching anything on that box. It is not leaking anything - not even sweating - so I'm not going to scratch where it doesn't itch.



    If need be I can drop the gearbox in future without removing the engine.

  5. #525
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    good time to change some hoses...dont want a burst pipe ruining all that lovely work

    is the oil in the g/box clean?excl the torque convertor
    also a good time to remove the cat.

  6. #526
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    Marius please show us that engine bay once you've had some degreaser and a HP cleaner to it.
    To achieve greatness, stop asking for permission!

  7. #527
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    Quote Originally Posted by Francois Theron View Post
    Marius please show us that engine bay once you've had some degreaser and a HP cleaner to it.
    Is that a hint
    VW Touareg 3.0 V6 TDI (Terrain Tech)

  8. #528
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    Quote Originally Posted by Kortgat View Post
    Interesting that PD engines actually have a common pressurised fuel rail, thought this was unique to CRd's engines, i.e. common rail diesel.


    With CRD, common rail refers to the Accumulator Rail in which the high pressure fuel pump pressurizes diesel fuel up to 1800 bar (Basically the same concept as with an air compressor).

    Common rail systems uses piezoelectric fuel injectors which is supplied with diesel from the accumulator rail and electrically operates independently from engine mechanics meaning they can inject fuel totally independent of cam timing.

    Also note, piezoelectric fuel injectors used in CRD and PD piezoelectric valve injectors used for Pumpe Duse injection are completely different units.
    VW had PD injectors that used a piezoelectric valve instead of an electric solenoid, but I don't know if these were ever available in SA.
    Moving away from cam controlled injectors also made 4 valves per cylinder and double cams possible in VW TDi egines.
    From my understanding, 3.0 V6 TDi was the first VW TDi using Common Rail direct injection .

    VW TDI history:
    • Bosch VE pump direct injection (1996-2003)
      Uses 1x diesel pump:
      • Bosch VE injection pump.
    • Pumpe Duse direct injection (2004-2006)
      Uses 2x diesel pumps:
      • Lift pump in fuel tank

      • Tandem pump located at the end of the camshaft.
    • Common Rail direct injection (2009-onwards except V6 TDi from 2006)
      Uses 3x diesel pumps:
      • Lift pump in fuel tank

      • Medium pressure pump

      • High pressure fuel pump (HPFP)



    Cheers,

    .
    2005 VW Touareg R5 TDi (Daddy's cool ride)
    Electric Jeep Super (Little-SWAMBO's ride)


  9. #529
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    This has been a most interesting thread.
    I know its a bit early but all this info has bought to mind a few questions and answers.
    1) Is this plasma coating used in all modern vw engines, petrol and diesel?
    2)Is this plasma coating used in audi and porsche diesels, all cayennes?
    3) I presume that this plasma coating is used in the racing diesel engines used in Le mans.
    4) Providing all is good in the engine, what is the life expectancy of the bores?
    5)These problems can be tackled with the help of VW. Brings to mind the guy with the V10 toerag that went in 6inches of water (in botswana)and apparently stuffed up his motor that VW said it cant be fixed and they dont have the tools or the expertise.Cost of new engine 500k. This explains why.

  10. #530
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    the engines I know that uses this technology is the R5, V10 and lupo engines. There may be more that incorporate this.

    The coating is extremely durable and gets honed with diamond coated honing machines.

    the life expectancy is approximately 1'000'000km provided it is maintained and cared for.

    It's advantages are low friction, long life and weight reduction.

  11. #531
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    so Marius, this coating is tough, what kills it?
    oils, fluids??

  12. #532
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    Quote Originally Posted by Kiboko View Post
    so Marius, this coating is tough, what kills it?
    oils, fluids??
    Same reason normal bores go as well. The coating is extremely tough but also very thin, so if starts to go it goes very quickly as behind the coating is just aluminium.

  13. #533
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    Looks like lack of lubrication in this case.

  14. #534
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    or maybe too much fuel/oil

  15. #535
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    I don't thik that was the case here as the other 4 bores are perfect. I suspect a glowplug broke a tip and was just replaced instead of taking the head off and taking the bits out.

  16. #536
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    I'm sure I read somewhere, if not on this same post, that there is a problem with the R5 engine with lubrication on the nr5 cylinder. ?

  17. #537
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    Quote Originally Posted by Scorpio Turbo View Post
    I'm sure I read somewhere, if not on this same post, that there is a problem with the R5 engine with lubrication on the nr5 cylinder. ?
    Having poured over the engine mechanics for ages I can only imagine that this can be due to extended oil change intervals. Number 5 cylinder is the furthest from the oil filter



    so extended oil intervals can cause the oil filter to block too much, restricting flow similar to this



    and cylinder 5 gets starved of oil both through the piston's cooling circuit and the oil squirter which means lack of cooling and lube.

    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  18. #538
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    regular oil changes then is the real answer. with synthetic

  19. #539
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    Quote Originally Posted by Kiboko View Post
    regular oil changes then is the real answer. with synthetic
    That is my belief.

    VW claims 15k kms intervals on 505.01 spec (hydro cracked mineral oil turned to synthetic) and up to 50k kms on 506.01 spec (100% pure synthetic). NB : Synthetics are not all equal.

    I am going to do 10k kms oil changes on 506.01 spec.


  20. #540
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