Discovery 4 5.0L V8 problem





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Thread: 5.0L V8 problem

  1. #1
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    Default 5.0L V8 problem


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    Default Re: 5.0L V8 problem

    Nope but I was warned that abused ones tend to "stretch"
    their timing chains, more than likely it was the guides as this guy says.
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    Default Re: 5.0L V8 problem

    Never had it on my V8, also never heard of it on the forum.

    Looking at the forum I would have thought the water pump is the most common problem on the V8, not the timing chain guides as these guys claim.
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    Default Re: 5.0L V8 problem

    Quote Originally Posted by 4xhilux View Post
    Never had it on my V8, also never heard of it on the forum.

    Looking at the forum I would have thought the water pump is the most common problem on the V8, not the timing chain guides as these guys claim.
    Exactly my thoughts.
    Just replaced the water pump again at 120k km as a precaution.

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    Default Re: 5.0L V8 problem

    There alot more V8s in the States so will be more common there if it is a problem.
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    Default Re: 5.0L V8 problem

    Searched the interwebs and found basically nothing about this in the V8 D4/ LR4 as the Yanks call it.

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    Default Re: 5.0L V8 problem

    It does happen. But more common among the Supercharged versions.

    Last year alone the workshop saw about 23 Supercharged versions vs 1 Naturally aspirated V8 with stretched chains and/or worn guides
    2005 Land Rover Discovery 3 V8 (Will allways end up with an V8)
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    Default Re: 5.0L V8 problem

    Quote Originally Posted by JeandreDiedericks View Post
    It does happen. But more common among the Supercharged versions.

    Last year alone the workshop saw about 23 Supercharged versions vs 1 Naturally aspirated V8 with stretched chains and/or worn guides
    Thanks Jeandre, what would be the ballpark figure to do a job like that.

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    Default Re: 5.0L V8 problem

    Quote Originally Posted by oradba69 View Post
    Hi oradba69

    this phenomenon is well known among other manufacturers (MB etc) especially on very powerful engines. the M120 V12 is known to snap (simplex) timing chain once past 100'000km and some of the V6 motors too suffer from timing chain and/or sprocket wear.

    I would suggest as a matter of preventative maintenance to change the timing chain around 100'000km. Yes this is not cheap, but much much cheaper than to repair an engine, once the chain has snapped or jumped some teeth. If done in time one might get away without changing the guides.

    On my MB 500SL's the timing chain (duplex) has to be changed every 200'000km.

    The guy in the video, Storey Wilson is the creator of the RSW Solutions (TM) Diagnostic Software, which I use on the FFRR Td6.
    Last edited by hgbosch; 2018/04/12 at 03:45 PM.
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    Default Re: 5.0L V8 problem

    Quote Originally Posted by Byron View Post
    Nope but I was warned that abused ones tend to "stretch"
    their timing chains, more than likely it was the guides as this guy says.
    Hi Byron

    guide damage is normally as a result of "slapping" chains, i.e. a consequential damage.
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    Default Re: 5.0L V8 problem

    Quote Originally Posted by BuckRogers View Post
    Thanks Jeandre, what would be the ballpark figure to do a job like that.
    Also keen to know, if I remember well its a +10hr labour job if not more.. I think I might have the same issue on mine, pretty noisy on idle, not sure if its normal, the supercharger coupling or the timing chain guides.., all I know is my 4.2 ran a lot quieter..

    Don't have the energy to do this job myself, and camshaft locking tools are needed as well...
    Last edited by Marcochezzi; 2018/04/12 at 04:48 PM.
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    Default Re: 5.0L V8 problem

    Quote Originally Posted by Marcochezzi View Post
    Also keen to know, if I remember well its a +10hr labour job if not more.. I think I might have the same issue on mine, pretty noisy on idle, not sure if its normal, the supercharger coupling or the timing chain guides.., all I know is my 4.2 ran a lot quieter..

    Don't have the energy to do this job myself, and camshaft locking tools are needed as well...
    Hi Marcochezzi

    on the Mercs we split the chain, splice the new one in and feed it through, that way the front covers don't have to be removed. I have done 4 such jobs already over the years on V8 500 and 560 motors (M117).

    Would be interesting to find out, if this is possible with the 5.0 V8. Walter (LRXtreme) might be able to advise on that.
    Last edited by hgbosch; 2018/04/12 at 05:02 PM.
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    Default Re: 5.0L V8 problem

    on the 5.0SC it is the guides that wear normally, this was apparently resolved late MY10. there are however instances of the actual chain stretching with exsessivly hard use.
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    Default Re: 5.0L V8 problem

    Quote Originally Posted by BuckRogers View Post
    Thanks Jeandre, what would be the ballpark figure to do a job like that.
    R60k+ at Dealership prices and labour.

    Quote Originally Posted by hgbosch View Post
    Hi Marcochezzi

    on the Mercs we split the chain, splice the new one in and feed it through, that way the front covers don't have to be removed. I have done 4 such jobs already over the years on V8 500 and 560 motors (M117).

    Would be interesting to find out, if this is possible with the 5.0 V8. Walter (LRXtreme) might be able to advise on that.
    I think it might be a bit difficuilt with these. Probably not impossible but swear words will be used. And if the chains are stretched all 4 pulleys on the cams need to be replaced as well.

    Quote Originally Posted by Marcochezzi View Post
    Also keen to know, if I remember well its a +10hr labour job if not more.. I think I might have the same issue on mine, pretty noisy on idle, not sure if its normal, the supercharger coupling or the timing chain guides.., all I know is my 4.2 ran a lot quieter..

    Don't have the energy to do this job myself, and camshaft locking tools are needed as well...
    Labour intensive, yes. Fastest Ive seen it done was 2 days. Drive in early in the morning, drive out the next day at 5.
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    Freelander 2 TD4


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    Default Re: 5.0L V8 problem

    So around 15-20k at a good Indy?
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    Default Re: 5.0L V8 problem

    Whish I could find a video on the net of how this sounds on a NA 5LV8.

    Can only find vids of SC’s.

    I do not think the NA V8’s seems seriously affected.

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    Default Re: 5.0L V8 problem

    Quote Originally Posted by Regard View Post
    Whish I could find a video on the net of how this sounds on a NA 5LV8.

    Can only find vids of SC’s.

    I do not think the NA V8’s seems seriously affected.
    Very curious to know more about this also.
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    Default Re: 5.0L V8 problem

    the reason why mainly SC version of 5L V8 are affected has to do with the much more abrupt increase in revs which puts extra strain on the valve train components.

    Higher stress loads result in higher wear and tear, actually quite simple.
    George Bosch
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    Default Re: 5.0L V8 problem

    Looks like I have this issue. Drove the car to indy this morning to get viscous fan replaced as it was making a heck of a noise and it was fine when driving there.

    While car was at indy, started and got 'restricted performance'. Error message being thrown is P0016. Haven't diagnosed the main ticking noise as the engine is naturally quite loud but there is a rough idle every now and then.

    Not sure what the outcome is as it only happened this afternoon, but will feedback here. I'm hoping it's just a sensor but I guess we'll see.
    2004 LR Discovery 2 Td5 GS - Hybrid Turbo, Intercooler, 33's, 2" Lift, V8 TC, Ashcroft CW&P 3.75 + ATB lockers. [GoldiloX]
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    2010 LR Discovery 4 V8 HSE - Lifted with IIDtool, Powered by Petrol and Running on Cooper AT3 LT (new spec) 265/65/18s [Imvubu] - SOLD

  21. #20
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    Default Re: 5.0L V8 problem

    Nee man Douglas

    Probably just sensor.....esp considering all your mud bathing.

    I had a P0018 code a few months ago. Reset the code and never came back.
    Last edited by Regard; 2018/06/15 at 01:05 PM.

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