Marius's Touareg R5 life thread. - Page 28




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  1. #541
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    marius

    did you watch some of those other videos on auto box flushes etc
    very interesting

  2. #542
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    marius

    did you watch some of those other videos on auto box flushes etc
    very interesting

  3. #543
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    Quote Originally Posted by Kiboko View Post
    marius

    did you watch some of those other videos on auto box flushes etc
    very interesting
    No. I have only done one flush in my life and that was on my pajero 3.2 Di-D. I just consulted the manual and went from there.

    I made a DIY about it here

    http://www.pajeroclub.co.za/forum/viewtopic.php?t=2115

  4. #544
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    Quote Originally Posted by MariusFourie View Post
    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.



    @Marius: This is a very interesting illustration, thanks for sharing...


    My Comment:
    The above assumption is based on physics of gravity feed.
    The engine has a oil pump which keeps the whole oil feed system under constant pressure the whole time while engine is running.
    As long as all oil ports are clear, all components should get exact amount of lubrication.

    VW engineers would most probably noticed a serious problem like this when they did stress tests on these engines back in the day.


    .
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  5. #545
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    Remember that the oil pump does not give pressure. The oil pump provides flow volume. The restriction in the oil passages and clearances provides the pressure.

    Imagine a garden hose flowing nicely (oil pump) as soon as you put your thumb over the end and obscure it halfway (oil restriction and tight tolerances) you get pressure.

    Now for the R5 engine imagine that you are connecting the hose to one of those kiddies slip and slide thingies. The oil pump can't flow enough as the oil filter is blocked too much from extended services and so all the openings don't get enough oil pressure



    Just a theory, I'm not 100% certain why the R5 is prone to failure on cylinder 5 but I will put money on the fact that it's due to either overheating or over extending the oil drain intervals.

  6. #546
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    Romzotwa, the operative phrase in your statement is "As long as all oil ports are clear". And even then the system is not a closed circuit, so there will be pressure loss through friction in the oil channels to the furthest components and oil being tapped out of the system at the nearer lube points. With the system clean and open as designed the pressure loss will be negligible, but any restriction will affect the furthest point the most.

    Pressurize Marius' coke bottle and the same differences in pressure will be evident.

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  7. #547
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    Seeing that the broken engine is now a spare, i.e. was not traded in, a full autopsy will be in order once Marius has the Treg back on the road.
    2007 Touareg 3.0 V6 TDI (Facelift, Air, Rear Diff Lock, Rear Mounted Spare)
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    * consumption needs to be seen in the context that the vehicle is towing an Imagine Trailvan 50% of the time.


  8. #548
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    Quote Originally Posted by Kortgat View Post
    Seeing that the broken engine is now a spare, i.e. was not traded in, a full autopsy will be in order once Marius has the Treg back on the road.
    jip. will be nice to take it apart (plan on selling it in spares - except for the block) and post some nice pics to see what goes on in that engine.

  9. #549
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    Ek het Desember die slegte nuus gekry dat my Touareg se engin die selfde probleem as joune het.

    Die engin is deur VW Centurion oop gemaak en die probleem is by nr. 1 gekry.
    Die plasma laag op nr. 1 is beskadig. Daar was nie ander skade bo nie maar die einde van die saak is dieselfde, n ander engin.

    As ek mag vra wat het jy betaal vir die engin wat jy gekry het?

    Ek het een by Remtec bestel.

    My Touareg is by VW gekoop as n Master car en het vir al sy dienste by VW gegaan. Het hom gekry op 100 000km en het nou 170 000km gedoen.

    My vertroue in VW is erg gekrenk.

  10. #550
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    Quote Originally Posted by zxdan View Post
    Ek het Desember die slegte nuus gekry dat my Touareg se engin die selfde probleem as joune het.

    Die engin is deur VW Centurion oop gemaak en die probleem is by nr. 1 gekry.
    Die plasma laag op nr. 1 is beskadig. Daar was nie ander skade bo nie maar die einde van die saak is dieselfde, n ander engin.

    As ek mag vra wat het jy betaal vir die engin wat jy gekry het?

    Ek het een by Remtec bestel.

    My Touareg is by VW gekoop as n Master car en het vir al sy dienste by VW gegaan. Het hom gekry op 100 000km en het nou 170 000km gedoen.

    My vertroue in VW is erg gekrenk.
    Very interesting. I paid R35k for my engine which is classified as a steal. But I have to replace the tandem pump at another R4.5k.

    I don't know what the remtec engine comes with so make sure of all the costs.

    A few questions for you?

    Did you service it at the dealer?
    What service intervals did you use?
    What oil did the dealer use?
    Is it possible to get some macro camera pictures of the cam lobes like this?



    maybe it willbe beneficial to do an oil analysis of the failed engine to look for diesel contamination (failed tandem pump?)

  11. #551
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    I don't know how true this is, but the following is very interesting...


    I have read an interesting article stating that plasma coating technology has been around since the 60's and was used in aluminum two stroke motorcycles engines.
    The big problem with it back then was that some additives/contaminants in fuel could cause its breakdown.

    This process was only introduced to aluminum diesel car engines about 10 years ago.
    Salfur and other additives/contaminants in diesel fuel was still a big problem here.

    It seems that plasma coating has the weakness to have chemical reactions with additives/contaminants in fuel.

    .
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  12. #552
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    engine has arrived.

    I quickly pulled the tappet cover and the oil and cam lobes look good.

    Now just waiting for the tandem pump from Germany before the work starts.


  13. #553
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    Fantastic Marius. How long till the tandem pump arrives...? Very excited now
    2007 Touareg 3.0 V6 TDI (Facelift, Air, Rear Diff Lock, Rear Mounted Spare)
    2008 Audi A4 B8 2.0 TDI (Multitronic)
    2009 KTM 990 Adventure (Daily Commuter & Weekend Fun)
    2012 Imagine Trailvan 4-Sleeper

    * consumption needs to be seen in the context that the vehicle is towing an Imagine Trailvan 50% of the time.


  14. #554
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    Quote Originally Posted by MariusFourie View Post
    engine has arrived.

    I quickly pulled the tappet cover and the oil and cam lobes look good.

    Now just waiting for the tandem pump from Germany before the work starts.
    Good news about the lobes

    Did you order the pump VOR?
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  15. #555
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    Quote Originally Posted by Romzotwa View Post

    It seems that plasma coating has the weakness to have chemical reactions with additives/contaminants in fuel.

    .
    2SO perhaps ... lets not have or start that debate again though!!!

    My view, this is still caused by incorrect oil usage, i.e. 507 by VW or worse topping up with some mineral oil at the garage. Thats the feedback off the German sites, and I pretty much trust their analytical expertise.
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    2008 Audi A4 B8 2.0 TDI (Multitronic)
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    2012 Imagine Trailvan 4-Sleeper

    * consumption needs to be seen in the context that the vehicle is towing an Imagine Trailvan 50% of the time.


  16. #556
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    Quote Originally Posted by Kortgat View Post
    2SO perhaps ... lets not have or start that debate again though!!!

    My view, this is still caused by incorrect oil usage, i.e. 507 by VW or worse topping up with some mineral oil at the garage. Thats the feedback off the German sites, and I pretty much trust their analytical expertise.
    That cars number 5 cylinder was kaput when I test drove it in Durban prior to Maruis buying it.
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  17. #557
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    The tandem pump is coming from Germany

    I ordered this one which is the same one as on the car

    http://seekpart24.com/luk/vacuum-pum...00039&at=13179

    But they haven't got stock so they are sending me the pierburg replacement at the same price.

    http://seekpart24.com/pierburg/vacuu...00039&at=13179

    My old engine is perfect other than minimal cam wear and a failed cylinder 5. If an engine fails due to contaminants you will see evidence all over.

    Quote Originally Posted by parafanaylya View Post

    Did you order the pump VOR?

    What does VOR mean?

  18. #558
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    Quote Originally Posted by MariusFourie View Post
    What does VOR mean?
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  19. #559
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    I don't understand the question then with regards to whether I ordered the pump VOR....

    I ordered the pump as I'm not sure if mine added to my original failure and the one on the current engine looks dodgy and is weeping oil.

    I'm not taking chances as a tandem pump can cause starting/running issues and dilute engine oil with fuel.

    On top of that the engine needs to come out for the replacement of the pump so I'm doing it now and be done with it.

  20. #560
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    All the services were done by VW, even the BIG 150 000km, that cost R16000.00.
    I expected VW to use the right oil.
    They are of the opinion that the engine overheated and after reading all the posts on this and other forums I suspect the wrong oil.

    You got a bargain with the engine here in my back yard

    The Remtec unit come from sump to tappet cover, injectors included, with a 100000km/12months guarantee @ R65 000.00 vat included.

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