Engine reduced power and clunking

Discussion in 'General Discussion' started by Mickey Mcguire, Aug 2, 2020.

  1. Mickey Mcguire

    Mickey Mcguire New Member

    Aug 2, 2020
    2004 240 sundeck
    350 bravo 3
    I have a 2004 240 sun deck with a 350 bravo. 2 years ago replaced short block due to crack . This season motor has clunking noise at or above 2500 rpms and reduced power. Rpms top out at about 3800, we’ll below normal. Also hesitation or skip noticed throttling up from 1500 rpms to 2000. Tested on trailer with with no issues at full throttle, no clunking and limited hesitation or skip. Any ideas?
  2. scoflaw

    scoflaw Well-Known Member

    Aug 10, 2011
    cape cod mass, cape coral fl
    1999 Powerquest legend 260 sx
    502 mpi Bravo 1
    See if you can post a video of the clunking.. Trailer test means nothing. Clunk under load doesn't sound like good news.

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