engine knocking noise 5th gen honda prelude (bent valves?)

im almost positive its bent valves but does anyone else have suggestions as to what it might be?

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Honda Accord Valve Adjustment - EricTheCarGuy
This one was a request from a couple of viewers, I like to keep you all happy so here you go. This video is actually taken from a larger video I call "Accord Smackdown", in it I replace the timing belt, radiator, a major service, and some other stuff that I don't remember. I think there will be a couple more videos from this "smackdown" in the future, there is some good stuff in there that I think you will like and possibly learn from. If you have other topics you would like covered don't hesitate to let me know, I'm happy to give you what you want. Post them as text or video responses to this or any of my videos. I'm going to get the part number for the tool I used in the video sometime next week and post it here so keep your socks on and check back sometime next week. Visit me at EricTheCarGuy.com http://ericthecarguy.com/ Visit EricTheCarGuy Forum http://carquestions.ericthecarguy.com/viewforum.php?f=2&start=0&sid=82fdbaf f5e8b157727e9723c1fbf36c0 Visit my Facebook Page: http://www.facebook.com/EricTheCarGuy Stay dirty ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.  Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result.  Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.

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