S2000 Under The Hood S2000 Technical and Mechanical discussions.

Engine Knock

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Old Jul 8, 2012 | 02:26 AM
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Default Engine Knock

As the title states i was just wondering if anyone could identify the sound that i am hearing?

I would just like some advice on where to start looking for the problem

http://www.flickr.com/photos/63668637@N06/7522444638/

thanks in advanced for any advice
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Old Jul 8, 2012 | 02:47 AM
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was wondering if a sound like this would throw a code?
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Old Jul 8, 2012 | 06:52 AM
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What have you done to the car recently?
Did you run low on oil?
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Old Jul 8, 2012 | 07:49 AM
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Sounds like a bearing....
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Old Jul 8, 2012 | 08:09 AM
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I heard the noise when I got home and checked the oil the following morning I was sitting on half, topped it up although the sound remains.

I was sitting at 210km/h in 6th at about 6000 rpm and felt the car become hesitant, I backed off immediately reducing my speed to about 130 and then tried to return although when I climbed up to 150 it just felt like it was holding back and so I did not try again.
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Old Jul 8, 2012 | 08:10 AM
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I actually have the recording of my drive although wont upload for legal reasons
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Old Jul 8, 2012 | 09:05 AM
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Do you have upgraded oil jet bolts? Might be a scuffed bore. Going speeds of 160+ kmh (100 mph) for an extended period of time could cause the cylinder not receive proper lubrication and scuff without the upgraded oil jet bolts. Doesnt sound good :/
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Old Jul 8, 2012 | 09:40 AM
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does the sound get faster as you rev it???
hate to scare you, but my gf's mini cooper did this,(ran it out of oil ) and it was a rod bearing, needed a new engine.
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Old Jul 8, 2012 | 10:23 AM
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sounds like a spun bearing
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Old Jul 8, 2012 | 11:05 AM
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Don't have upgraded jet bolts I was only going 160+ for no more then 15 seconds I backed off immediately

Yes the sound gets faster as I rev it although is barely noticeable when cold and its revving up but becomes more apparent when engine warms up and revs drop
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