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Whats that sound?

Old Sep 25, 2007 | 09:53 PM
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Default Whats that sound?

Is it knock or clicking valves? ( i think knock)

http://www.youtube.com/watch?v=qhjL5...elated&search=
Old Sep 25, 2007 | 10:16 PM
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It doesn't help that he was idling at 500 RPM and less. That is definitely not lifter/valve noise. The whole damn motor is shaking, i've seen cars do that when it doesn't have enough timing in idle and it's running too rich.
Old Sep 25, 2007 | 10:18 PM
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my motor shakes, but its only when the rpm's fluctuate due to intake leaks
Old Sep 25, 2007 | 10:20 PM
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well this one sounds like a party clicker

http://youtube.com/watch?v=Q7iuOHe0u...elated&search=

ps
i think this guy and his camera are :gay:
Old Sep 25, 2007 | 10:31 PM
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its running on 3 clyinders.
Old Sep 26, 2007 | 12:25 AM
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Sounds like my KA24DE did just before it broke a rod at 237,XXX. I really hated that car.
Old Sep 26, 2007 | 01:24 AM
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That's not a tap or a knock. It sounds like it's running on 3 cylinders to me. I would pull all the sparkplugs and have a look at them. Make sure all 4 cylinders are getting fuel/spark. Run a compression test and leakdosn test. That sounds like a stuck valve to me. My friends nissan hardbody has a sticky exhaust valve and using marvel mystery oil will make it run smoothly for about 3K miles, then it sticks again. Add more mystery oil and it goes away.
Old Sep 26, 2007 | 08:27 AM
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Originally Posted by Braineack
its running on 3 clyinders.
Yep... the shaking and noise is very familiar. Thats running on 3 cyls. Definitely NOT valve noise.. valves sound like a very light tick.
Old Sep 26, 2007 | 09:07 AM
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Originally Posted by Braineack
its running on 3 clyinders.
ruh-roh
then maybe my inline 4 is really an inline 3, i need to take it apart this christmas
Old Sep 26, 2007 | 12:28 PM
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my ka24de did the same thing, probably an injector. pull one injector plug off at a time and see which one doesn't make a difference. Mine must have had a bad connection because taking them on and off suddenly went back to normal
Old Sep 26, 2007 | 12:34 PM
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long screwdriver but up against your ear does the same thing, just put the end against each injector to listen for the ticking. Then pull each wire out a bit to see if you hear the ignition system working.
Old Sep 26, 2007 | 01:33 PM
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Originally Posted by mazda/nissan
well this one sounds like a party clicker

http://youtube.com/watch?v=Q7iuOHe0u...elated&search=

ps
i think this guy and his camera are :gay:
thats a timing belt tensioner on that motor
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