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07-24-2024, 06:10 AM | #1 |
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So recently I took off the head to clean the valves because they were so dunked up that the valves weren’t sealing anymore. So I Lapped them and put everything back with new gaskets, head bolts, ect. But after around 600 miles I started to hear a small tapping noise when I’d be light on the pedal and when I step on it it goes away but comes back at around the mid range.
It still pulls like hell and no performance loss what so every It does do it when I hit the clutch and rev it It does get fast with rpms 2k-4k I’ve tried turning off each cylinders coil or injector I’ve replaced the lifters It 100% sounds like on top of the engine around 3rd and 4th cylander But it shows no evidence off wear Should I replace the rollers next ? Could it be the injector decoupler? "]https://youtube.com/shorts/-0RfQtRfvro?si=bx_yaHEpA1EKmCRg[/img] |
07-24-2024, 01:30 PM | #2 |
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Check your logs and see if you're leaking somewhere.
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07-24-2024, 03:05 PM | #4 |
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If you mangled a decoupler you'll have a vac leak. You'll see bank to bank trim variance.
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07-24-2024, 03:12 PM | #5 |
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I ain’t that smart with reading logs but I’ll send you the data log that I just did from 2nd gear how can I send it to you
But what my car has is fbo with inlets Mhd stage 2 + wit a 2.5v2 pr fuel pump I was thinking about replacing them and the seals |
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07-24-2024, 03:15 PM | #6 |
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And I know I got a boost leak from my bov the spring gon bad and it leaks at roughly 10 lbs of boost usually I get 18 but how could that cause it to tick like that
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07-24-2024, 04:07 PM | #7 | |
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Quote:
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07-24-2024, 06:11 PM | #8 |
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Didnt see anything alarming in that brief set. Lots of variability. Could be a vac leak bank 1 but it's basically within limits and dme is compensating.
Boost leak and tapping sound. Are your waste gates rattling?
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07-24-2024, 06:32 PM | #9 |
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Indeed they are but making good boost rn I ain’t cause of my nice box that sounds like an air compressor
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