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Smoke, lots of it
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trob86
 


Member Since: 19 Sep 2021
Location: Yorkshire
Posts: 38

United Kingdom 2005 Discovery 3 TDV6 SE Manual Java BlackDiscovery 3
Smoke, lots of it

Hi I've just replaced the timing chain in the drivers side after it failed, its timed up right and drives with plenty of power, I'm just at a loss of to what would be the cause of this?
  
Post #225227219th Sep 2021 5:54 pm
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munst
 


Member Since: 16 Sep 2020
Location: GLOS
Posts: 155

United Kingdom 2007 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

Belt snapped whilst running? I'd be amazed if you don't have valve damage somewhere.

Edit - sorry thought it was BELT not CHAIN.
  
Post #225228119th Sep 2021 6:24 pm
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kajtzu
 


Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

Any chance (I guess some…….) that the engine is foo… I mean cooked? Thick white smoke tends to mean head gasket failure, cracked engine block, etc. how is your coolant level? The white smoke is either water or coolant.
  
Post #225228219th Sep 2021 6:31 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20713

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Is the oil level dropping? Looks like it may have cracked a piston...
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #225228719th Sep 2021 6:53 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

munst wrote:
Belt snapped whilst running? I'd be amazed if you don't have valve damage somewhere.

Edit - sorry thought it was BELT not CHAIN.


They are both!
  
Post #225228819th Sep 2021 6:59 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10337

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

If its only done it once, it could just be unburnt fuel in the exhaust burning off. They do that on chain failure.

If its going it all the time, then something worse
  
Post #225229219th Sep 2021 7:29 pm
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trob86
 


Member Since: 19 Sep 2021
Location: Yorkshire
Posts: 38

United Kingdom 2005 Discovery 3 TDV6 SE Manual Java BlackDiscovery 3

It does it once it get warm and you put it under load, I drilled the cat as I thought that would have been full of fuel but it wasn't, also oil and water levels are fine
  
Post #225229319th Sep 2021 7:34 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10337

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Check for balance fault codes.
Read offsets at idle. This may point to a cylinder with damage
  
Post #225230519th Sep 2021 8:30 pm
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1772

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

Could be an EGR. We got smoke like that when we put "Redex" in the fuel to loosen up the carbon.
  
Post #225340125th Sep 2021 8:46 am
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OvalAutos
 


Member Since: 28 Dec 2018
Location: Cradley Heath
Posts: 382

United Kingdom 

Pete K wrote:
If its only done it once, it could just be unburnt fuel in the exhaust burning off. They do that on chain failure.

If its going it all the time, then something worse


Because the chain drives the inlet valves, if the engine was run with only one head working, it will have dumped unburnt fuel out the exhaust valves (driving by the belt) on the knackered head. It can take quite a run to burn off even a little fuel (or oil) in the exhaust. You just need to drive it like you're James Bond and it will eventually clear.
 Joe  
Post #225341625th Sep 2021 10:13 am
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trob86
 


Member Since: 19 Sep 2021
Location: Yorkshire
Posts: 38

United Kingdom 2005 Discovery 3 TDV6 SE Manual Java BlackDiscovery 3

So given it a better run, most of the smoke has cleared but now smells very oily, the level was above max on dipstick so drained some out, would this have got into exhaust/turbo? Or is it engine that's cream crackered?
  
Post #22546551st Oct 2021 5:15 pm
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