Can anyone identify this tapping noise?

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Originally Posted by ted2910

Thanks again Disco DB, Sounds more like the last one that was unresolved to me.

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Agreed - that was the one which the dealer claimed it was normal (would have to disagree with that).

Slo-mo video recordings at 240fps are great for diagnostics. When played back it slows the recording right down that you can actually hear each individual cylinder firing. This then gives you a clear 6 beat which is at half the engine rpm. From this you can zero in on if the noise is at this rate or double this.

As I said on your other post on exactly the same topic - sounds all normal to me and sounds like my 2007 2.7 TDV6 RRS - and it has sounded the same for the last 14 years and 200,000km - it is just the normal diesel rattle - listen to a Crapota Diesel and it is a lot worse.

Another similar one - this is a 3.0 HDI that had been in an accident. Turned out to be an injector connector not seated properly. Includes link to sound afterwards in the comments section.

3,0hdi/TDV6 is this a faulty valve lifter ? - YouTube

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Originally Posted by ted2910

Would anyone know a good LR mechanic in QLD that could help me with this?
I don't mind putting it on a trailer and going the distance!

Cheers

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I have been to land Rover spares Mackay, when I lived up there, does a good job.

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Originally Posted by josh.huber

I have been to land Rover spares Mackay, when I lived up there, does a good job.

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Thanks Josh, I'll give him a bell.

Cheers

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Originally Posted by DiscoDB

Another similar one - this is a 3.0 HDI that had been in an accident. Turned out to be an injector connector not seated properly. Includes link to sound afterwards in the comments section.

3,0hdi/TDV6 is this a faulty valve lifter ? - YouTube

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Cheers mate, I'll be pulling all the injectors this arvo and inspecting. Will return my results.

Unfortunately not the injectors [bigsad]

Is that "not the injectors" because you pulled them and re-installed them to no change, or is it "not the injectors" because the actual fault became obvious when it chucked a leg out of bed (or similar)?

Do you have the Gap IID tool, or other means of checking the injector balancing offset?

When you are comfortable running the engine again, may need to record the noise from different positions around the engine (and below) to find where it is loudest, plus consider trying a slo-mo video at 240fps of the auxiliary belt. At worst the slo-mo video will just confirm the frequency of the noise - and the belt tensioner gives the overall reference tempo (it bounces on each cylinder firing).

Out of interest - what oil do you use? 5W-40 tends to quieten noisy tappets. Although yours sounds like it needs more than just a thicker oil.

Agreed and at the low k's you wouldn't think it would be worn big end bearings already.