Vehicle & Technical > Discovery

Spectacular breakdown - trashed Turbo?

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Range Rover Blues:
If they aren't burnt away then run-in valves are good because they will have a work-hardened surface.  Look for signs of pitting, may look like small black circular patches now, on both valve and seat.  If these are not excessive you can leave them, or grind in gently.  You should be able to see a continuous track of clean metal though, that's the seal.  Just the same as you'd look for whilst grinding in in fact.  Remember that the valves are working damn hard on a diesel so want to be in good nick for at least 2 years.  With a bit of work your car might even be a tad faster for a while :)

As for new seals, bit of a no-brainer that mate.  Whilst you are there it's daft not to and they will probably be in the gasket set.

jnoshea:
Taking about head gasket sets, what's usually is included in these (so I don't go double ordering)?

jnoshea:
...also, is there anything else I should do while the head is off?

hobbit:
Get it checked and skimmed for any warping?

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