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'02 Valve Train Ticking Noise

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Is it normal for an '02 engine to have an upper end "ticking" noise at idle? If so how much of this noise should there be? I completely understand that this is hard to answer over the internet and without hearing the car run. Does anyone remember from when their '02 was brand new how much of this noise their engines made? I have been told by a couple of mechanics that this valve train noise is completely normal. Thanks in advance.

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"ticking" is usually from valves needing to be adjusted in my experience

when your motor is idleing, move the palm of your hand over the valve cover over cylinder 1, then 2, etc, and you can usually pinpoint the valves needing adjustment.

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Guest Anonymous

it's kind of hard to say without listening to your specific situation,

but yes, you can hear valve train noise, but if you hear more

of a clattering, then the valves need adjustment, because the

gap is too large, thus more noisy..... if you know that the valves

are adjusted then what you have is probably normal.

if you are having trouble getting it to run smoothly, and you think

it's noisier, probably you need some adjustment.

o2cabrio

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Thanks guys. I'll go ahead and adjust the valves and see if this quiets the ticking down.

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In addition to placing your hand on the rocker cover, if you take a dowel or a hammer handle and push it against the rocker cover and then put your ear on the other end you can isolate the noise to specific valves.

Good Luck

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---= " a ticking valve is a happy valve " =---

meaning 'some' tick is normal and good because if no tick is heard - I'd worry that there is NO CLEARANCE which will kill your motor.

0.010" = banging

0.008" = tapping

0.006" = sweet tick

0.004" almost no tick

0.001 ... 0.002" = I feel sorry for your motor.

http://www.bmw.com/generic/com_04/en/fascination/discover/history/mobiletradition/parts/parts_3_1.html

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Hi CD,

Thanks for this info, as usual it is always very helpful. Do you adjust your valves when the engine is hot or cold? Or both? I've always heard from the "old school" of mechanics to adjust the valves when the engine is stone cold. Thanks again.

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After pulling apart a few M10s, I have found that the rocker shafts are normally quite worn taking some of the precision out of the rocker operation. Relatively cheap, but not a fun job to replace though. As has been said a little even tapping is healthy.

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after you adjust the valves, a nice, even ticky ticky from all 8 is good.

Bad is tacky tacky from all, and worst is ticky ticky TACK ticky ticky...

or CLclackk from the timing chain...

ASCII art? Heck, here we do ASCII sounds!

heh heh

t

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On 11/7/2006 at 2:14 PM, c.d.iesel said:

CD come back!!

 

---= " a ticking valve is a happy valve " =---

meaning 'some' tick is normal and good because if no tick is heard - I'd worry that there is NO CLEARANCE which will kill your motor.

0.010" = banging

0.008" = tapping

0.006" = sweet tick

0.004" almost no tick

0.001 ... 0.002" = I feel sorry for your motor.

http://www.bmw.com/generic/com_04/en/fascination/discover/history/mobiletradition/parts/parts_3_1.html

 

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