How can you tell the difference between valve tap or lifter tap ...I have a very light tapping sound around 2k and 3k rpm ...I have tried several different oils
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10-05-2019, 08:59 PM | #1 (permalink) |
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Valve tap or lifter tap
How can you tell the difference between valve tap or lifter tap ...I have a very light tapping sound around 2k and 3k rpm ...I have tried several different oils which made no difference ...there isn’t any tapping at idle and there isn’t issues driving or in performance ....the tapping is very light and can’t be heard on a video , is this something that is normal with vq engines ?
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10-05-2019, 09:48 PM | #2 (permalink) |
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Tapping can be common. A remedy I know others have had success with is adding the correct amount of Seafoam to the oil. Ester oil also helps to quiet it down. Such as Red Line.
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10-05-2019, 09:59 PM | #4 (permalink) |
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10-05-2019, 10:15 PM | #5 (permalink) | |
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Doesn’t really sound like that .....at idle it’s smooth and no sign of any sound ...only time I really hear it is between 2k-3k and even then it doesn’t sound as loud as those vids...one thing I did noticed was on my 2016 nismo ...I have the BP turbo kit and after install from a cold start I could hear more tapping sound and it would fade away after about 30 secs ...on my 2015 nismo which had a supercharger I didn’t have that sound until I removed the cats and went with test pipes ...after doing that both sounded very similar ...so I thought maybe the valvetrain noise might have been resonating more through the pipes ... it idk Last edited by Jinxx; 10-05-2019 at 10:20 PM. |
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10-05-2019, 11:52 PM | #6 (permalink) |
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The Z engines are noisy AF. Redline quieted mine down a bit. My 2 cents would be, dont let it get to your head. Took me a month of fretting to figure out that was normal.
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10-05-2019, 11:56 PM | #7 (permalink) |
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Whatever you do, Do not put Seafoam in it. What weight oils have you ran. A 5w30 works best. If you are using 0w40 you will get some noise until the car warms up a bit. That's what most boosted guys use. I do the same. It is more noticeable after an oil change. I have been looking to try some Motul X-Cess 5W-40.
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10-06-2019, 12:02 AM | #8 (permalink) | |
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10-06-2019, 12:11 AM | #9 (permalink) | |
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10-06-2019, 12:22 AM | #10 (permalink) | |
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There are a lot of independent tests which prove that Seafoam actually does work, but to each their own.
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10-06-2019, 07:14 AM | #11 (permalink) | |
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Quote:
Was running 5w30 Amsoil...tried 5w30 royal purple ...( May have been slightly quieter ) then mobile 1 5w30 Last edited by Jinxx; 10-06-2019 at 07:21 AM. |
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10-06-2019, 07:18 AM | #12 (permalink) |
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I kinda feel it may be normal but I rather look into it now just in case .....i Haven’t tried redline ..I think the royal purple may have been slightly quieter but hard to tell
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10-06-2019, 08:53 AM | #13 (permalink) |
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Nissan's Ester Oil is supposed to quieten the valve train. Might be worth a try.
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10-06-2019, 10:18 AM | #15 (permalink) |
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There will probably be a difference due to the differences in formulae. No idea if there will be enough difference to matter.
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