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Omega Owners Forum › Omega Help › Omega General Help › Loud ticking sound, worse when hot

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Loud ticking sound, worse when hot (Read 478 times)

NiallyV6CDX

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Loud ticking sound, worse when hot
11. Dec 2009 at 22:01

Hi folks,
There is an increasingly loud metallic ticking sound coming from the mid/bottom of the engine. Its not that noticeable on startup but gets progressively louder as the engine warms up. Its not the tappets as I cleaned and replaced them, and I did a compression test and it doesn't seem to be the piston rings either (also the ticking is too low frequency for that). Any ideas? Huh

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tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: Loud ticking sound, worse when hot Reply #1 - 11. Dec 2009 at 22:05 pop off the aux belt and start the engine (do NOT run it for more than a few seconds) because the aux belt drives the waterpump. With the aux belt off, see if it makes the same noise
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mathewst Omega Knight Offline Posts: 1499 Split, Croatia Gender: Drives: omega 2.2i 16v	Re: Loud ticking sound, worse when hot Reply #2 - 11. Dec 2009 at 22:23 And replace it immediately if it is the waterpump, cause mine broke in one day like that
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NiallyV6CDX

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Posts: 328
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Drives: not any more :-(

Re: Loud ticking sound, worse when hot
Reply #3 - 11. Dec 2009 at 22:24

I just replaced the aux belt a few months ago and while it was of I span the water pump and checked it for play and leaks etc.. and it seemed fine. Mind you I had drained the coolant before hand. Would that make any difference?
I was thinking it might be the oil pump, as that would explain why it gets louder when warm?

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mathewst Omega Knight Offline Posts: 1499 Split, Croatia Gender: Drives: omega 2.2i 16v	Re: Loud ticking sound, worse when hot Reply #4 - 11. Dec 2009 at 22:27 You should have replaced it when changing the aux belt
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