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engine noises valve or injectors help needed

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Old Sep 14, 2011 | 07:27 PM
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slayer423's Avatar
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Icon3 engine noises valve or injectors help needed

http://www.youtube.com/watch?v=59Ytv9YCLno

theres a link to the vid of my engine and its bs noises. i really hope its the injectors or just a valve lash adjustment but i already did that and i dont think i did it wrong.

someone please tell me whats going on, and the sound is veryy loud.

car runs very smooth
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Old Sep 14, 2011 | 08:11 PM
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1998GsRIntegra's Avatar
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Default Re: engine noises valve or injectors help needed

Well, I first have to commend you for posting a video and not just trying to describe it in a bastardized way. Thank you for that.

If it were a vtec motor I would say lma's, but since we have a non-vtec that is just shy of impossible.

To me, it sounds like a rod knock or your valve lash is extremely off. Pull your oil filter and look for bonze/gold colored metal shavings. If you find shavings, you have a bearing problem. Motor will have to come appart, ect.

If you find no shavings then I would lean towards valve adjustment being way off. If you leave a comment like "I don't think I did it wrong" you don't have much confidence in your work. If your not experienced with valve adjustments I would take it to someone that is. You can really do a good bit of damage if your not doing it properly. If nothing else have someone check over your adjustments.

I can say with a good bit of confidence that fuel injectors are not your problem. If they were you would be getting some funky readings on your wideband

One more thing, pull your distributor cap off and check for red dust. I've heard some funky sounds from them before when they go bad. Also worth checking. If you find red dust, its bad. The dust is from the bearing, there's not fixing it like an igniter or coil.

Last edited by 1998GsRIntegra; Sep 14, 2011 at 08:13 PM. Reason: Wanted to add one more thing in.
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Old Sep 14, 2011 | 09:29 PM
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Default Re: engine noises valve or injectors help needed

Originally Posted by 1998GsRIntegra
Well, I first have to commend you for posting a video and not just trying to describe it in a bastardized way. Thank you for that.

If it were a vtec motor I would say lma's, but since we have a non-vtec that is just shy of impossible.

To me, it sounds like a rod knock or your valve lash is extremely off. Pull your oil filter and look for bonze/gold colored metal shavings. If you find shavings, you have a bearing problem. Motor will have to come appart, ect.

If you find no shavings then I would lean towards valve adjustment being way off. If you leave a comment like "I don't think I did it wrong" you don't have much confidence in your work. If your not experienced with valve adjustments I would take it to someone that is. You can really do a good bit of damage if your not doing it properly. If nothing else have someone check over your adjustments.

I can say with a good bit of confidence that fuel injectors are not your problem. If they were you would be getting some funky readings on your wideband

One more thing, pull your distributor cap off and check for red dust. I've heard some funky sounds from them before when they go bad. Also worth checking. If you find red dust, its bad. The dust is from the bearing, there's not fixing it like an igniter or coil.
im almost sure its not rod knock, that sounds a whole lot worse and engine should be vibrating insanly no? but maybe,
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Old Sep 14, 2011 | 10:57 PM
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Default Re: engine noises valve or injectors help needed

Originally Posted by slayer423
im almost sure its not rod knock, that sounds a whole lot worse and engine should be vibrating insanly no? but maybe,
no thats about exactly what rod knock sounds like. sounds like u have a spun rod bearing. either running lean or running with little to no oil.

look up other peoples rod bearing sounds... im leaning 90% towards spun rod bearing. highly unlikely to be a valve related issue but im pretty sure from ur video that its rod bearing cause i just had this problem sounded identical.
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Old Sep 15, 2011 | 12:11 PM
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Default Re: engine noises valve or injectors help needed

Originally Posted by LordAphotic
no thats about exactly what rod knock sounds like. sounds like u have a spun rod bearing. either running lean or running with little to no oil.

look up other peoples rod bearing sounds... im leaning 90% towards spun rod bearing. highly unlikely to be a valve related issue but im pretty sure from ur video that its rod bearing cause i just had this problem sounded identical.
Personally I've spun enough rod bearings to know that that sound is damn near identical. Just not a big fan of jumping on one thing immidately. Just pull your oil filter and you will get good news or bad news.
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Old Sep 15, 2011 | 08:54 PM
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Default Re: engine noises valve or injectors help needed

my **** knocks when i start it. what does that mean? it knocks like his but just when i start it up.
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Old Sep 15, 2011 | 09:23 PM
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Default Re: engine noises valve or injectors help needed

Update:

i popped the valve cover off today and i guess i forgot to tighten the last bolt when i adjusted the valve lash which caused it to go way out of spec. i changed my oil and found no metal shavings whatsoever in filter or in oil panel. now my car is ready to go to the machine shop to get the cam cap bolt drilled out that i broke while torquing it in hulk style like an idiot.


o and now my motor sounds really healthy and no ticking whatsoever
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Old Sep 15, 2011 | 09:59 PM
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Default Re: engine noises valve or injectors help needed

soooo i guess rod knock can sound like two things..........
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