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H22 Loud Valvetrain Noise, Valve Adjustment is in spec, Video

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Old Aug 15, 2012 | 10:39 PM
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Default H22 Loud Valvetrain Noise, Valve Adjustment is in spec, Video

I picked up a 97 Honda Prelude Type SH and the seller believed it had rod knock.

I drained the oil and fished a magnet in the oil pan. There was no evidence of any metal shavings typical of a bearing failure.

The noise is coming from cylinder 1 in the head. I checked with a stethoscope to pinpoint the noise.

So far I've adjusted the valves to spec. Intake at .007" and Exhaust Valves at .008". During the process I didn't notice anything that was damaged or looked/felt out of place.

Wondering what I should be looking for now. Bad LMA? Any common valve train issues with the H22?


Here's a vid...skip to 1:45 or around 2:00 and the noise is very audible. Don't mind the oil leak dripping onto the header, I didn't tighten all the valve cover nuts completely before shooting the video.

TIA


http://www.youtube.com/watch?v=8QiQ8...ature=youtu.be
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Old Aug 18, 2012 | 04:02 PM
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Default Re: H22 Loud Valvetrain Noise, Valve Adjustment is in spec, Video

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Old Aug 18, 2012 | 05:54 PM
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Default Re: H22 Loud Valvetrain Noise, Valve Adjustment is in spec, Video

are you throwing any codes?does the car drive fine?anything out of the ordinary other than that noise?

kinda sounds like something is loose and hitting something...but who knows..maybe a bent valve..
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Old Aug 18, 2012 | 08:17 PM
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Default Re: H22 Loud Valvetrain Noise, Valve Adjustment is in spec, Video

bent valve.
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Old Aug 18, 2012 | 08:19 PM
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Default Re: H22 Loud Valvetrain Noise, Valve Adjustment is in spec, Video

most likey skipped a tooth on the belt and bent the valve
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