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Author Topic: 2.5td ''Ticking noise''  (Read 1700 times)

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dervdoc

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2.5td ''Ticking noise''
« 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
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TheBoy

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Re: 2.5td ''Ticking noise''
« Reply #1 on: 11 October 2010, 20:36:02 »
Check the aux belt tensioner and the PAS pump mounting brackets....
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dervdoc

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Re: 2.5td ''Ticking noise''
« Reply #2 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
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Welung666

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Re: 2.5td ''Ticking noise''
« Reply #3 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. ;)
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dervdoc

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Re: 2.5td ''Ticking noise''
« Reply #4 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
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Omegatoy

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Re: 2.5td ''Ticking noise''
« Reply #5 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!
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dervdoc

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Re: 2.5td ''Ticking noise''
« Reply #6 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
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Omegatoy

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Re: 2.5td ''Ticking noise''
« Reply #7 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!!
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dervdoc

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Re: 2.5td ''Ticking noise''
« Reply #8 on: 11 October 2010, 21:36:59 »
mine is quite loud at low rpm
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osealy

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Re: 2.5td ''Ticking noise''
« Reply #9 on: 11 October 2010, 22:10:18 »
I had a 95 for 44kmls that ticked. It didn't get any worse.
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smokingomega

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Re: 2.5td ''Ticking noise''
« Reply #10 on: 12 October 2010, 11:23:21 »
Pretty high mileage, Maybe it could be the cam chain tensioner???
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steve2.5cd

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Re: 2.5td ''Ticking noise''
« Reply #11 on: 12 October 2010, 17:33:26 »
Could be the timing chain rattling !  >:(
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TheBoy

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Re: 2.5td ''Ticking noise''
« Reply #12 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...
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Grumpy old man
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