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TDV6 Cylinder Balancing Offset Help Please
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geoff.
 


Member Since: 24 Jan 2010
Location: West kent
Posts: 8531

England 

steve

speak to steve at advanced factors he will let you know how his is Thumbs Up
  
Post #155989911th Nov 2015 9:32 pm
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Woolmeister
 


Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3462

Ukraine 

Will do, Geoff Thumbs Up

Hope it's good news (for his and mine)! Big Cry


Steve
 2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
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2017 Discovery Sport HSE Auto in Carpathian Grey and Ebony Leather. Modern JLR Junk. Gone.
2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park! 
 
Post #155990711th Nov 2015 9:50 pm
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geoff.
 


Member Since: 24 Jan 2010
Location: West kent
Posts: 8531

England 

good news for him but not to sure about you Whistle
  
Post #155990811th Nov 2015 9:52 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20795

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Woolmeister wrote:


My question was more, "What is the worst that could happen if I leave this fault to develop noticeable symptoms?". I've heard horror stories of holes being blown in pistons due to increased combustion temperatures caused by over-fuelling.

I'm quite prepared to leave it and see how it develops whilst I have no noticeable symptoms. Am I risking further damage to anything in the meantime?


Steve


Poor spray pattern may lead to "hot spots" burning onto the piston

Incomplete combustion is compensated by the PCM adding more fuel, which raises combustion temps again

Worst case, as you have said, is melted Pistons
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Post #155991011th Nov 2015 9:53 pm
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Woolmeister
 


Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3462

Ukraine 

Current status:

Click image to enlarge


Click image to enlarge


So, the ~1390 readings seem very intermittent. Nevertheless, I've got two injectors - 3 and 4 - that are reading high.

If you refer back to my original post at the top of this thread, Injector 6 was the one that was reading highest.

This, is why I'm reluctant to start changing injectors... Whistle


Steve
 2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
2019 Škoda Kodiaq 2.0 Tdi 190 DSG Sportline in Quartz Grey. Excellent vehicle. Gone.
2017 Discovery Sport HSE Auto in Carpathian Grey and Ebony Leather. Modern JLR Junk. Gone.
2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park! 
 
Post #156007812th Nov 2015 9:17 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8170

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Two things you are missing on your test are engine temperature and RPM, add them to your Iid tool test screen, you may find after the engine has reach normal operating temperature and higher RPM the injectors are operating within spec Thumbs Up
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #156009012th Nov 2015 9:38 am
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MarkOne
 


Member Since: 23 Jul 2011
Location: County Antrim
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Scotland 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

RPM will be at idle with those figures.
  
Post #156009112th Nov 2015 9:41 am
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Woolmeister
 


Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3462

Ukraine 

Engine temperature was cold (had been parked for about 6 hours) and RPM was indeed idling (you can't read these values unless idling) so I guess around ~780 RPM.

I'll take another reading later on when it's up to temperature. Thumbs Up


Steve
 2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
2019 Škoda Kodiaq 2.0 Tdi 190 DSG Sportline in Quartz Grey. Excellent vehicle. Gone.
2017 Discovery Sport HSE Auto in Carpathian Grey and Ebony Leather. Modern JLR Junk. Gone.
2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park! 
 
Post #156009512th Nov 2015 9:48 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8170

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

I am sure when I had a play with my tool Shocked I got readings at around 2000rpm! and they balanced out, unless there is a default on the Iid tool when rpm is increased.
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #156010112th Nov 2015 10:00 am
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Woolmeister
 


Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3462

Ukraine 

Yes, you will, but they won't ever move. Laughing

When idling, you will find that the values fluctuate quite a bit. When you put your foot down, you will probably find that they all settle at something like 999.000.


Steve
 2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
2019 Škoda Kodiaq 2.0 Tdi 190 DSG Sportline in Quartz Grey. Excellent vehicle. Gone.
2017 Discovery Sport HSE Auto in Carpathian Grey and Ebony Leather. Modern JLR Junk. Gone.
2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park! 
 
Post #156010412th Nov 2015 10:03 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8170

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Yes, ISTR that's what I was getting, thought the old girl was doing well Smile
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #156010612th Nov 2015 10:06 am
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Nubber99
 


Member Since: 13 Apr 2014
Location: Poole
Posts: 289

United Kingdom 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

This was mine. I had the two highest replaced, and now they are all back to 980 - 1050.



[/img]
  
Post #156043713th Nov 2015 9:04 am
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Woolmeister
 


Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3462

Ukraine 

Thanks, Nubber99. Thumbs Up

I've been keeping an eye on this over the last week or so. A few more screen captures of what my IIDTool is telling me...

Reading on Friday:

Click image to enlarge


Readings Today (when I arrived at work and when I got home from work):

Click image to enlarge


Click image to enlarge


In all three cases, the car was up to temperature and had just completed a ~40 mile trip on Motorways, A roads and B roads.

I'm inclined to think I need to replace 3, 4, and 6 at the moment, unless anybody else thinks otherwise?


Steve
 2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
2019 Škoda Kodiaq 2.0 Tdi 190 DSG Sportline in Quartz Grey. Excellent vehicle. Gone.
2017 Discovery Sport HSE Auto in Carpathian Grey and Ebony Leather. Modern JLR Junk. Gone.
2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park! 
 
Post #156260017th Nov 2015 10:05 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20795

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

3,4 and 6 do look very iffy

Though if the readings of one 3 are fluctuating as much as that, I'd be prepared to replace all 6
But, you never know Thumbs Up
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Post #156261217th Nov 2015 10:13 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8170

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Will these readings be different on an engine that has a remap?
As can be seen in the photos injector 4 that I am about to change is consistently high, but relating it to which one it is on the car is very technical.

One for PatGap; it would be much easier to relate the readings to the engine if the display order on the Iid tool was relevant to standing in front of the car, as they they are I find it very confusing for an amateur.

Click image to enlarge




Click image to enlarge
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #172249521st Oct 2016 8:43 am
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