Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: NiallyV6CDX on 11 December 2009, 22:01:31

Title: Loud ticking sound, worse when hot
Post by: NiallyV6CDX on 11 December 2009, 22:01:31

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? :-?

Title: Re: Loud ticking sound, worse when hot
Post by: tunnie on 11 December 2009, 22:05:13

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

Title: Re: Loud ticking sound, worse when hot
Post by: mathewst on 11 December 2009, 22:23:52

And replace it immediately if it is the waterpump, cause mine broke in one day like that

Title: Re: Loud ticking sound, worse when hot
Post by: NiallyV6CDX on 11 December 2009, 22:24:22

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?

Title: Re: Loud ticking sound, worse when hot
Post by: mathewst on 11 December 2009, 22:27:02

You should have replaced it when changing the aux belt