Chippy said:
"Incorrect tolerance in manufacture
Oil system blockage , or even incorrectly assembled oil pumps , or poor quality oil.
Perhaps a fixed ball would have lasted longer."
This costs money so the problems could be attributed to cost savings and why should JLR care how the customer suffers.
The thing that bugs me after viewing that video a few times , and then looking at the spares list I can only assume the new balance shaft comes with the bearing already fitted to it.
So they are not pressing out and refitting the outer bearing shell.
So any balance shaft replacement with scored bearing rollers is bound to fail as the outer shell will already be scored.
They should all be engine replacements.
Yes it's money , stuff the customer .
However if the do change the shaft and it fails again , under consumer rights law in the UK you can get a replacement vehicle as they have had one attempt at repair and it failed.
Couple that with the fact they have issued a document listing all vehicles affected , it's a known issue , so even after 6 months you can demand a replacement vehicle or refund.