Jaguar Land Rover recall TDV6 engined vehicles

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Originally Posted by TroyDiscoveryPerth

Adding another to this list. 2014, D4, TDV6, 160k km… quoted $35k to repair from Barbagello Cannington.. pity I only just found this thread ☹️

Car serviced continually as per spec. Looked after. Stopped dead at 30km/h…….

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Sorry to hear that. In my opinion that's the key issue here: "serviced to spec". The long intervals between oil changes on a dirty diesel (egrs basically letting the engine breathe its own waste) as specified by JLR is a recipe for failure. Changing oil every 10000km max with a quality oil that meets the specs, and trying to limit short drives will see longevity in these engines. A good engine flush every oil change removes the sludge and clears out oil galleries

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Originally Posted by Eric SDV6SE

Sorry to hear that. In my opinion that's the key issue here: "serviced to spec". The long intervals between oil changes on a dirty diesel (egrs basically letting the engine breathe its own waste) as specified by JLR is a recipe for failure. Changing oil every 10000km max with a quality oil that meets the specs, and trying to limit short drives will see longevity in these engines. A good engine flush every oil change removes the sludge and clears out oil galleries

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It seems unbelievable LR wouldn't be onto the long service intervals?

I am sure other manufacturers would be,many are still 10,000km,others are 15,000 for diesels.

The 3L failure doesn't appear to be oil related from what I've seen.. They are not spinning bearings or grabbing. Just snapping

I must admit to be being quite worried about the possibility of this happening and spoke to a bloke I know at the main dealers today about replacement engines etc. None available as we know and bits have to come from sources other than LR.
My car has had the oil changed every 10K and sometimes less since new in 2016 and very little has gone wrong (except that damn EPB) but I'm seriously thinking of moving on into the darkside...... actually I've ordered a Prado but anything can happen between ordering and 12 - 14 months to delivery.
New Defender too expensive at 130K and restricted space in the back for what we want.
We'll see what happens.
AlanH.

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Originally Posted by ATH

I must admit to be being quite worried about the possibility of this happening and spoke to a bloke I know at the main dealers today about replacement engines etc. None available as we know and bits have to come from sources other than LR.
My car has had the oil changed every 10K and sometimes less since new in 2016 and very little has gone wrong (except that damn EPB) but I'm seriously thinking of moving on into the darkside...... actually I've ordered a Prado but anything can happen between ordering and 12 - 14 months to delivery.
New Defender too expensive at 130K and restricted space in the back for what we want.
We'll see what happens.
AlanH.

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Same sentiments, mines 2013, and just replaced intake manifolds after one split. Mechanic mentioned the crankshaft issues and I’ve been nervous ever since.
Ordered a new Ranger, with delivery end August 2023, but able to opt out if I change my mind. The V6 has same origins as the LR one.
Plenty of time to consider all options.

I checked out the new Everest Sport which has that V6 Lion motor as well. Didn't want a ute as their high sides are a put off for me. Anyway, back area in the Everest is too restricted again so Prado it was despite the horrid rear barn door but we had one years ago and managed OK with that.
Time will tell what happens.
Good luck on getting your Ranger.
AlanH.

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Originally Posted by josh.huber

The 3L failure doesn't appear to be oil related from what I've seen.. They are not spinning bearings or grabbing. Just snapping

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If its not oil starvation or related, then it must be a fault in the forging or a design issue. I agree that step down to that flange and the web thickness between #1-2 and #3-#4 does look very skinny. Then they drill an oil gallery straight throught the web part, weakening even further. Perfect stress raiser if the oil gallery has sharp corners or the material has a defect in it already.

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Originally Posted by Eric SDV6SE

a design issue.

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Plenty of new engine designs over the years have had crank related failures in the field until a modification was made. In this case I suspect LR just doesn't give a crap, so they never bothered to make a modification.
They all break in the same spot, so it's possibly a weakness in the crank, or as mentioned previously a harmonic issue causing the crank to flex excessively at that spot (whip).

Volvo modified their bulletproof B23 engine into the B230 back in the 80's. It used a new cast crank with much smaller journals to reduce rotating friction and save fuel. They were just to one side of the snapping curve at their rated output. Any increase in power output and they started to break, so they had to modify the bearing configuration to reduce harmonics *and* move to a forged crank for higher power outputs. Remove the harmonic balancer at your peril.

I get the feeling Landrover just shrugged their shoulders and kept going.

These new high output small displacement motors are pretty bloody highly stressed compared to years gone by and appear to be engineered on the ragged edge of reliability to reduce weight and friction.

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Originally Posted by BradC

..Remove the harmonic balancer at your peril...

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As the rubber in harmonic balancers deteriotates with use, I wonder if replacing the harmonic balancer every 100K kms or so might prevent some of the failures. It may not be beneficial at all on some crankshaft designs but on susceptible ones it might be good insurance, although I expect they're rather costly. They're usually fitted to remove vibration caused by the ancilliaries but some engines need them for crankshaft longevity.
I had one of my tractor's re-rubberred because it was moving a lot but the rebuilt one was soon jumping around almost as much, so probably a waste of money in that instance.
My 4.4 TDV8's balancer moves substantially at idle but I'm not concerned with crankshaft longevity due to its very robust design.