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At last, someone with a video clip of the "noise" rather than a description.


Sounds like siezed lifters.

Smaky will be along soon to give you his expert opinion.
 

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It could be sticky lifters, you could try giving it a flush then an oil change and see if that helps, has the cambelt been changed lately coz it also sounds a bit like valves tapping could it be about half a tooth out, it def sounds like the top end noise. come on someone must know !:confused:
 

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sounds like my stilo did when it lunched its big ends:(

has it run low on oil at some point?
 

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Discussion Starter #7
Belts and variator changed in Mar/Apr this year (within 5,000 miles). Second change in my 4 year ownership.
Never run low on oil during my time.

She did take in some water a couple of weeks ago. Since then has had oil, oil & air filter, spark plug and MAF change.
 

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It could be sticky lifters, you could try giving it a flush then an oil change and see if that helps, has the cambelt been changed lately coz it also sounds a bit like valves tapping could it be about half a tooth out, it def sounds like the top end noise. come on someone must know !:confused:
Would be inclined to say big end shells have gone. The camshafts run at half the speed of the crank. The noise sounds to be at full engine speed which would suggest bottom end. If the valves were touching the pistons the engine would be missing badly due to lack of compression. Its hard to diagnose a car over the internet, but from my experience I would say its the big end bearings. :thumbs:
 

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Does it sound like this (sorry work wont let me use youtube)

[url]http://www.youtube.com/watch?v=l0yZhCQUCzQ[/URL]

If so then its Big ends, how much is a little water??? are we talking hydrolock-age?
yes but slightly faster, like its idling faster, stil sounds like my stilo did though:(

you can also here a knock behind the ticking in the background coming from the bowls of the engine, when he moves from left to right, coming from the right side, i would personally say its mullered:(
 

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Discussion Starter #14
I guess wont know until we take the engine apart. I need to decide if there is any value in that.:(
 

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Well I would take it to the nearist alfa specialist and get a definate diagnostic, from someone that can look at it for you, hand to tell over the Internet and you don't want to be ripping eninge apart for a little issue
 

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Discussion Starter #16
I have been to my mechanic this morning. He thinks it is top end.
He has offered to take the rocker cover off for initial investigations so I can decide if I want to go on.

A real pivotal point in my relationship with the car.
 
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