D3's and early 4s are now starting to wreck their engines by either the oil pump housing cracking, or the main crank bearings spinning in their journals and blocking oil feed to the crank
Both are a fundamental design flaw, neither are being taken seriously by Land Rover
I'm not entirely convinced by this.
It seems to me that LRs are cracking the oil pump housing but not Peugeots, Citroens or Jags with exactly the same part. Am I wrong?
They also seem to often crack shortly after a timing belt change.
The thing is that one of the timing belt pulleys bolts to the oil pump, and so if you abuse the timing mechanism, or fit the wrong bolt, or use a hammer gun on it...
The other thing is that folks are saying that the bearing shells can spin because they aren't tabbed, however the research that I read on it seems to indicate that the shells are held in place by the insane force of the main bearing caps being torqued onto them, not the tabs. If the crank binds onto a bearing shell hard enough to spin at against that kind of clamping force then it would simply bend the tabs straight. There are apparently lots of engines without tabs on the bearing shells now, not just the LRJ 2.7.
Did the bearing fail because the shell spun and covered the oil feed hole, or did the shell spin because the crank seized onto it and span it?
I would like to know this: if the 2.7 in my XJ explodes can I buy a 3.0 and just move over all of the sensors and ancillaries and put that back in?