The TDV6 bottom end problems are basically two-fold
1. Bearings start to rotate due to excessive friction during cold starts mainly after prolonged periods of non-activity. The TDV6 needs some time to build up oil pressure...... There is a fix here in South Africa for this. It is called Poly-TFE and all who are using it on their TDV6 engines have been spared from engine failures caused by bearings turning.
2. Snapped cranks - this is mainly caused by a failed or faulty front crank balancer. They are of a two-part rubber bonded design. With age etc, the rubber bonding separates and eventually fails and the balancer starts to wobble. Snapping of cranks has been observed to happen in engines with perfect bearings.
So the only solution here is to change the front balancer every 100'000km or so. Early warning sign are excessive wear on the Poly-V belt on the edge facing the radiator (fraying).
I wonder how much a new crank balancer/damper costs, and how long it would take to fit?
If not too expensive I am inclined to give this consideration. My engine has benefited from oil & filter changes ever 5k to 6k miles & the addition of Redex from 12k miles to 36k miles & Castrol Actevo 2 ever since, so hopefully at 70k miles it still has lots of life left in it. I've just changed the belts & oil pum, and with the benefit of hindsight should probably have changed the crank damper at the same time
NJSSAm I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
19th Mar 2015 12:37 pm
Nodge68
Member Since: 05 Sep 2014
Location: Newquay
Posts: 1014
Interestingly he gives slightly different reasons for crank failure on another forum.
He is spot on with the crank balancer.
The crank balancer plays a vital role in keeping crank harmonic resonances to a minimum. Harmonic resonances are a known cause of crank failure, regardless of engine make.
So replacement of the balancer in good time, could well help prevent early crank failure.
It's going to be much cheaper than a replacement engine and shouldn't take long to fit.Freelander SE 2005 Auto.
D3 TDV6. Gone.
Last edited by Nodge68 on 19th Mar 2015 4:18 pm. Edited 1 time in total
19th Mar 2015 1:19 pm
urhunden
Member Since: 15 Jan 2010
Location: Stockholm
Posts: 773
What about the 7year warranty. Have a TDV6 Auto MY-08 with different faults happening all the time.
Is this a warranty also valid in Sweden?
Tried last year to get the diff lock motor on warranty. This is a wellknown fault, but negative from the dealer and importer as well.
So tell me more about the warranty.
19th Mar 2015 4:16 pm
hugeviking
Member Since: 08 Jun 2010
Location: cotswolds
Posts: 1482
So, what's involved in changing the balancer then, is it DIY, any special tools required, presumably a puller is required.
Andi.
19th Mar 2015 8:23 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72786
And how much would it cost for us non DIYers to have done at a trusted dealer? I've stopped reading these threads (apart from this one obviously ) as it is just too scary, just hoping the Big Bang doesn't happen to mine.
19th Mar 2015 8:27 pm
hugeviking
Member Since: 08 Jun 2010
Location: cotswolds
Posts: 1482
Thats the trouble with forums. Imagine a Martian beeming down to earth and ending up at a doctors waiting room, he would report back that 100% of humans were faulty.
Then again....
Andi.
19th Mar 2015 8:40 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
Not credible as the Martian would have to book weeks in advance….Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72786
Nah, if it's a D3 it's either "worried unwell" or "seriously financially concerned".
19th Mar 2015 10:17 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20731
DSL wrote:
And how much would it cost for us non DIYers to have done at a trusted dealer? I've stopped reading these threads (apart from this one obviously ) as it is just too scary, just hoping the Big Bang doesn't happen to mine.
Pulley is £49 + VAT. Half an hour or so to replace
Not convinced that is the issue though. If it was, then all these replacement engines would have blown up too, as a new engine doesn't come with a new crank damper...My D3 Build Thread
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72786
As a non techie it's very easy to become paranoid with these engines. Just coz you're paranoid doesn't mean they aren't after u.
19th Mar 2015 10:38 pm
DG Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50934
TDV6 Crank failure = 1 per week on average
SDV6 Crank Failure = 1 per month on average
Time to go back sleep 21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
19th Mar 2015 10:47 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72786
I read that as meaning the 3.0 is as bad as the 2.7. Don't you just love statistics?
19th Mar 2015 10:52 pm
DG Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50934
All drop in within normal failure rates tbh ...hard for those who experience for sure ...but as Robbie would say lots of worried well out there 21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum