Honda/Acura Tech Honda tech discussion.

Tapping in the engine!!!

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Old 04-12-2009, 10:17 AM
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Default Tapping in the engine!!!

well i just did a rebuild on my stock ls bottom end, new main and rod bearings new, oil pump, water pump, etc....

well i started my car up and drove it for 100 miles and it started to make a tapping sound like it was a rod nock sound but it didnt come from the bottom end, it mostly sounds like its coming from the head, i checked the oil for metal shavings didnt find any so idk what else to do, i just took out my cams but didnt find anything interesting of where the sound would come from
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Last edited by CrXSibeast; 04-12-2009 at 03:43 PM.
Old 04-12-2009, 10:23 AM
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Vtec head? Possible valve adjustment.
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Old 04-12-2009, 10:25 AM
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timeing right? could be knocking valves into the pistons lol
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Old 04-12-2009, 10:28 AM
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maybe dirty lifters????
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Old 04-12-2009, 10:28 AM
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no vtec head stock ls head with new valve train, about 7k miles on it, i did the valve adjustment but still knocking sound
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Old 04-12-2009, 10:36 AM
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i thought i had the timming right maybe i was off idk could there be something else
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Old 04-12-2009, 10:38 AM
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how can u tell if it is rod knock? or not
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Old 04-12-2009, 10:48 AM
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Originally Posted by CrXSibeast
how can u tell if it is rod knock? or not
loud knock from the block it might be a stuck lifters like i said before try putting some seafoam in the head it should clean it all off.
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Old 04-12-2009, 10:56 AM
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ok ill try that gotta put the cams back on and redo the timming so lets see if that helps
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Old 04-12-2009, 02:10 PM
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did you check the specs on the bearings?if it was not making it when you first started then sounds like there was to much gap and is now starting to wear down,why did the bottom need rebuilding?was the crank checked?is it a tapping or more like a light thuddish rattle sound
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