Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: dervdoc on 11 October 2010, 20:22:13

Title: 2.5td ''Ticking noise''
Post by: dervdoc on 11 October 2010, 20:22:13

when my 2.5td id on idle there is a ticking noise from the engine, only seem to be in her on low rev, i have heard thid bmw engine doing the same in the 325tds, there are 192k miles on her and previous owner replaced all hydrolic tappets before sale to me, anyone came across this before? or anyone any ideas on fixing it?starts and drives well and performance is good :P

Title: Re: 2.5td ''Ticking noise''
Post by: TheBoy on 11 October 2010, 20:36:02

Check the aux belt tensioner and the PAS pump mounting brackets....

Title: Re: 2.5td ''Ticking noise''
Post by: dervdoc on 11 October 2010, 20:50:36

its not the aux belt tensioer, iv had it af before, sounds like a tappety noise and does get quicker as you rev up but dissappears after 2k rpm

Title: Re: 2.5td ''Ticking noise''
Post by: Welung666 on 11 October 2010, 20:52:24

Try some Wynns Lifter Treatment a couple of hundred miles before your next oil change and see if it makes a difference. If it doesn't then no harm as you'll be draining the oil out anyway. ;)

Title: Re: 2.5td ''Ticking noise''
Post by: dervdoc on 11 October 2010, 21:04:06

Quote

Try some Wynns Lifter Treatment a couple of hundred miles before your next oil change and see if it makes a difference. If it doesn't then no harm as you'll be draining the oil out anyway. ;)

new ones fitted as previous owner thought it was hydrolic tappets

Title: Re: 2.5td ''Ticking noise''
Post by: Omegatoy on 11 October 2010, 21:08:45

Hmm ticking could be many things, however i had a slight tick on mine after the floods 4years ago, and could not suss it, finally found it was an exhaust gasket had blown the corner of it out!! me and TB did it one afternoon around his place, lovely and quiet after that!

Title: Re: 2.5td ''Ticking noise''
Post by: dervdoc on 11 October 2010, 21:15:53

Quote

Hmm ticking could be many things, however i had a slight tick on mine after the floods 4years ago, and could not suss it, finally found it was an exhaust gasket had blown the corner of it out!! me and TB did it one afternoon around his place, lovely and quiet after that!

did the ticking dissappear up the rpm range? i did think that but thought it could be too simple but might b worth looking into

Title: Re: 2.5td ''Ticking noise''
Post by: Omegatoy on 11 October 2010, 21:34:31

yep that was what threw me for a while it was only there at low
rpms went quiet above 2k!!

Title: Re: 2.5td ''Ticking noise''
Post by: dervdoc on 11 October 2010, 21:36:59

mine is quite loud at low rpm

Title: Re: 2.5td ''Ticking noise''
Post by: osealy on 11 October 2010, 22:10:18

I had a 95 for 44kmls that ticked. It didn't get any worse.

Title: Re: 2.5td ''Ticking noise''
Post by: smokingomega on 12 October 2010, 11:23:21

Pretty high mileage, Maybe it could be the cam chain tensioner???

Title: Re: 2.5td ''Ticking noise''
Post by: steve2.5cd on 12 October 2010, 17:33:26

Could be the timing chain rattling !  >:(

Title: Re: 2.5td ''Ticking noise''
Post by: TheBoy on 12 October 2010, 19:19:43

Quote

Hmm ticking could be many things, however i had a slight tick on mine after the floods 4years ago, and could not suss it, finally found it was an exhaust gasket had blown the corner of it out!! me and TB did it one afternoon around his place, lovely and quiet after that!

And surprisingly easy as well - it was a job I wasn't looking forward to, but it didn't cause us any problems IIRC...