Groaning noise after TB change

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  • Aleman
    E30 Mastermind
    • Mar 2012
    • 1595
    #16
    OK gang - I finally got a video w/ sound. Going for a drive yesterday, heard at cold startup, the noise went away once up to operating temp. I've confirmed it isn't the PS pump by removing the belt. I don't notice any performance problems on the drive.

    Ever heard this noise before?

    https://www.youtube.com/shorts/2CECNnpP3MY


    Thanks!
    R135 /// 1990 Alpinweiß II 325is
    └┼┼┘ /// 1993 Black/Black Convertible (sold)
    ..24

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      • digger
        R3V OG
        • Nov 2005
        • 6033
        #17
        Part of that sound isnt too dissimilar to the sound you get from an overly tight belt tension. what brand parts?
        89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

        new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

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          • MrBurgundy
            R3V Degenerate
            • Mar 2012
            • 5434
            #18
            just take the other two belts off at this point

            sounds like one is way too tight
            Current Collection: 1990 325is // 1987 325i Vert // 2003 525i 5spd // 1985 380SL // 1992 Ranger 5spd // 1973 Porsche 914 // 2005 Avalanche // 2024 Honda Grom SP // 2024 Yamaha XSR700 // 2025 Jeep Wrangler Rubicon X

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