Engine chatter

bryce · 24-02-2009, 01:16 PM

Had a listen to my engine on sunday when I was giving the car a wash, and noticed a slightly chattering noise coming from it. To me it sounds slightly like tappets, and it increases in speed as the revs go up.

I think its always done it since owning the car, but the service manager is calling in on thurs (warranties out on monday

)

Mark, Gary and Derek had a listen to it an Knockhill cos I wanted them to check the Vanos was sounding OK.

Is it normal that there'd be a slight chattering? Or should I push the dealer to strip it down?

Cheers.

ps. Ive got a vid on my phone, which is crap quality, but gives an idea. If anyone wants a listen, PM your email.

SMD · 24-02-2009, 01:23 PM

Mine also sounds like that and the other CSL's i have been in!

monkeycsl · 24-02-2009, 06:43 PM

Mine too think its normal

thegingerninja · 03-03-2009, 02:53 PM

Normal - they all do it.

bryce · 03-03-2009, 03:43 PM

Service man came by the other day, says its fine. Its just the valves ticking away.

cslgirl · 03-03-2009, 04:18 PM

Mine makes that noise too. I thought there was something wrong with it but got the M tech guy to have a listen/look and nope, its normal

NZ_M3 · 03-03-2009, 10:36 PM

If you are ever wondering, put the sharp end of a screw driver on the vanos unit and listen with your ear on the blunt end - if it's vanos you'll hear it loud and clear.

Very useful way of diagnosing the source of any noise (it's what all mechanics do)

The vanos rattle is very distinctive and hard to miss ... best described as marbles in a can ... (it really does sound like it) and will usually occur on start up and won't go away as the car warms - rises with revs also

bryce · 03-03-2009, 10:54 PM

Quote:

Originally Posted by NZ_M3

Very useful way of diagnosing the source of any noise (it's what all mechanics do)

That is a handy tip

I get a grinding noise sometimes when I first start the car, it lasts for 1 second.

24-02-2009, 01:16 PM	#1
bryce S5, Sport On, DSC M-track Join Date: Nov 2008 Location: Scotland (sw) Posts: 1,369 Casino cash: $2512	Engine chatter Had a listen to my engine on sunday when I was giving the car a wash, and noticed a slightly chattering noise coming from it. To me it sounds slightly like tappets, and it increases in speed as the revs go up. I think its always done it since owning the car, but the service manager is calling in on thurs (warranties out on monday ) Mark, Gary and Derek had a listen to it an Knockhill cos I wanted them to check the Vanos was sounding OK. Is it normal that there'd be a slight chattering? Or should I push the dealer to strip it down? Cheers. ps. Ive got a vid on my phone, which is crap quality, but gives an idea. If anyone wants a listen, PM your email.

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24-02-2009, 01:23 PM	#2
SMD S6, Sport On, Traction Off Join Date: Jun 2008 Location: Shropshire Posts: 1,505 Casino cash: $10726	Mine also sounds like that and the other CSL's i have been in!

24-02-2009, 06:43 PM	#3
monkeycsl S5 - Full Throttle BMX Park Champion! Join Date: Jan 2008 Location: essex Posts: 444 Casino cash: $18732	Mine too think its normal

03-03-2009, 02:53 PM	#4
thegingerninja S5 - Full Throttle Join Date: Apr 2008 Location: Cheshire Posts: 370 Casino cash: $4367	Normal - they all do it.

03-03-2009, 03:43 PM	#5
bryce S5, Sport On, DSC M-track Join Date: Nov 2008 Location: Scotland (sw) Posts: 1,369 Casino cash: $2512	Service man came by the other day, says its fine. Its just the valves ticking away.

03-03-2009, 04:18 PM	#6
cslgirl S6, Sport On, Traction Off Simon Champion! Join Date: Sep 2007 Posts: 1,500 Casino cash: $33404	Mine makes that noise too. I thought there was something wrong with it but got the M tech guy to have a listen/look and nope, its normal

03-03-2009, 10:36 PM	#7
NZ_M3 S5, Sport On, DSC M-track Join Date: Jun 2008 Location: Auckland, New Zealand Posts: 1,434 Casino cash: $13579	If you are ever wondering, put the sharp end of a screw driver on the vanos unit and listen with your ear on the blunt end - if it's vanos you'll hear it loud and clear. Very useful way of diagnosing the source of any noise (it's what all mechanics do) The vanos rattle is very distinctive and hard to miss ... best described as marbles in a can ... (it really does sound like it) and will usually occur on start up and won't go away as the car warms - rises with revs also