Disco 4 buying advice

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Originally Posted by Captain_Rightfoot

I wish you well.

I'm committed to the defender. I would like something more modern but I don't see anything that I feel I could trust to be reliable .. or if that fails be simple enough for me to have a crack at fixing. It's a strategy. My strategy is almost certainly not applicable for anyone else.

I admire people with a strategy even if it's not mine. I reserve the right to try and apply your strategy!

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The same strategy as DaveD2. He's now looking for a D4, but as a towing vehicle, not for outback touring. He will keep his D2 for that.

Quote:

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Originally Posted by TonyC

Graeme,
Did you strip the old engine down?
If so, how worn were the bearings?
What do you think was the cause of the failure?
Worn bearings, spun bearing, design/manufacture issue, something else?

Tony

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#2 main spun which presumably blocked the oil supply to the adjacent big-ends then #3 big-end welded to the crank once the engine was switched-off. It had been idling for a minute or 2 waiting to see if the oil pressure light was or wasn't telling the truth as the engine sounded normal to my son's wife who was the usual driver, but the light stayed on so the engine was switched off. #2 main top shell is still wrapped around its bearing cap. All the bearing caps except #2 main are still in-situ so I could check on their wear if the crank can be rotated.
I can only guess as to what caused #2 main to spin but #2 and 3 mains have smaller oil supply orifices in the block than the other 2 and combined with the fact that the TDV6 crank is known to flex significantly, #2 & #3 are more likely to wear off the hard (sputter) bearing coating, under which there is only soft aluminium.

The bearings in the replacement engine showed no damage at all after 120K, with all the sputter coating intact.
All the left-over bits are in my shed.

Edit: The condition of the other bearings are likely to have been affected by the lack of oil pressure iniitally at 100 kph, although the ecm reduced engine power due to low oil pressure so the vehicle was parked as soon as possible.