RidnOnNeons Posted October 20, 2008 Share Posted October 20, 2008 I have a 97 civic ex with the y8 vtec motor. Just recently it seems to have a little bit of a knock. The knock only occurs when i barely push the gas pedal down or when the rpm's get high. I'm not sure if it is a knock or tap or whatever ya know! A buddy of mine says that he thinks its just a lifter tapping but I'm not sure if it would sound that loud or not! If anyone thinks they know what it might be then please let me know! It also wouldn't hurt if someone knew how to fix it either! Thanks everyone!! Link to comment Share on other sites More sharing options...
Hondahunter Posted October 20, 2008 Share Posted October 20, 2008 If it's a lifter sticking, you can throw some engine flush in it and change your oil. If that doesn't work and it is in fact a lifter sticking, you're gonna have to replace it. Link to comment Share on other sites More sharing options...
lastresort576 Posted October 21, 2008 Share Posted October 21, 2008 wait dont hondas not use lifters? i forget the correct term that they are but..could possibly just need a valve adjustment. Link to comment Share on other sites More sharing options...
Kastigir Posted October 21, 2008 Share Posted October 21, 2008 wait dont hondas not use lifters? i forget the correct term that they are but..could possibly just need a valve adjustment. Twin cams should...single cams do not. If it was a valve, it would tap at all times, not just when on the gas. From what the OP is describing, it sounds like octane knock. Link to comment Share on other sites More sharing options...
Hondahunter Posted October 21, 2008 Share Posted October 21, 2008 Twin cams should...single cams do not. If it was a valve, it would tap at all times, not just when on the gas. From what the OP is describing, it sounds like octane knock. I thought the same thing myself! Try putting premium gas in and see what happens! My B16 will knock if you put Regular in it. Link to comment Share on other sites More sharing options...
mpearce1974 Posted October 21, 2008 Share Posted October 21, 2008 I thought the same thing myself! Try putting premium gas in and see what happens! My B16 will knock if you put Regular in it. Link to comment Share on other sites More sharing options...
hondaddy Posted October 27, 2008 Share Posted October 27, 2008 engine knock could be that a rod is loose... iv'e seen the same thing with a turbo k20 Link to comment Share on other sites More sharing options...
Domani97 Posted October 30, 2008 Share Posted October 30, 2008 I just had the same problem i spun a bearing in my b16 listen to if its comming from the top or the bottom of the motor. spun bearings arent a REAL big deal u have to Mic (micrometer) the crank to make sure it hasnt deformed but you can do it from underneath by taking the oil pan and Windage tray off. then it will expose the bottom of the motor.. just try to wiggle each rod cap to see or hear if it moves if it does then its a rod bearing. if not then its something else Link to comment Share on other sites More sharing options...
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