Results 1 to 8 of 8

Thread: Chirping Noise Coming From Rear Of Engine

  1. #1
    Join Date
    Jul 2011
    Posts
    7
    Rep Power
    0

    Chirping Noise Coming From Rear Of Engine

    First of all I love this forum and everyone on here has been extremely helpful. I got my buddy's Donzi ZX running after two years with everybody's help. The engine runs fairly good (7.4 MPI). I believe I have a lifter or two that needs adjusted. He installed some Crane 1.72 rollers. Anyways, On the maiden voyage we got across the lake tied up at party cove and got silly but on out way back to the dock we started getting a squeaking/chirping noise coming from where the engine mates up the the stern. It sounds like a belt squeal but it is NOT the serpentine belt. I found a grease zert back there and greased it but she stills squeaks. I was just wondering if anyone has had this happen to them or what the noise might be. I dont wanna pull the stern drive off but I will if I have to. I'm afraid we're tearing up a bearing or something. Any help or ideas would be awesome. Thanks guys.

  2. #2
    mrfixxall Guest
    Quote Originally Posted by DonziStumped View Post
    First of all I love this forum and everyone on here has been extremely helpful. I got my buddy's Donzi ZX running after two years with everybody's help. The engine runs fairly good (7.4 MPI). I believe I have a lifter or two that needs adjusted. He installed some Crane 1.72 rollers. Anyways, On the maiden voyage we got across the lake tied up at party cove and got silly but on out way back to the dock we started getting a squeaking/chirping noise coming from where the engine mates up the the stern. It sounds like a belt squeal but it is NOT the serpentine belt. I found a grease zert back there and greased it but she stills squeaks. I was just wondering if anyone has had this happen to them or what the noise might be. I dont wanna pull the stern drive off but I will if I have to. I'm afraid we're tearing up a bearing or something. Any help or ideas would be awesome. Thanks guys.

    greece the zurt on the outside also,starboard side low close to the fiberglass..if that dont do it then you will have to pull the drive and check the ujoints for greece too..

  3. #3
    Join Date
    Feb 2005
    Posts
    1,991
    Rep Power
    21
    A bad gimbal bearing can intermittently squawk and squeal. Check from inside the bilge, to see if water is leaking through the transom plate. A tell tail sign is when the bilge pump spits a little bit of water or turns on frequently.It kind of depends on what kind of pump you have.

    My Rule automatic, which turns on every 2 min to check for water.would piddle water for 5 seconds and shut off. But it would piddle the water every time it turned on. Then I noticed an ever slight trickle coming in through a bolt hole in the transom plate. A major rupture in the U joint bellows can sink a boat pretty quick.
    machinist ,bore it deeper,ream it bigger, and lap it to a fine finish



    https://www.facebook.com/photo.php?v...=2&theater

  4. #4
    Join Date
    Jul 2001
    Posts
    14,603
    Rep Power
    38
    If it shuts up with a shot of grease change it, it will only be quiet for a short time before it seizes and ruins the gimble.
    No matter what your beliefs are "GOD BLESS AMERICA"

    Fully retired marine tech near 60 years in the biz.

  5. #5
    Join Date
    Jul 2011
    Posts
    7
    Rep Power
    0
    Cool I'll check for the other zerk on the outside and give her a squirt 'o' grease. The owner had mentioned he thought it could possibly be the gimble bearing. I've never done one but it looks like I might doing one soon. That's awesome. I'm normally an auto mechanic not a boat mechanic and I have about five min worth of experience with tearing apart a stern drive. If its mechanical I can probably figure it out. Once again you guys are great and I really appreciate the suggestions to help me along with this boat. After a while I should know this thing inside and out. Lol. I will post an update soon regarding the boat. Thanks again guys and happy boating to all.

  6. #6
    Join Date
    Nov 2003
    Posts
    12,683
    Rep Power
    34
    A $25 manual can save you a lot of time.
    I reccomend that everyone has one.
    George Carter
    Central Florida
    gcarter763@aol.com
    http://kineticocentralfl.com/


    “If you have to argue your science by using fraud, your science is not valid"
    Professor Ian Plimer, Adilaide and Melbourne Universities

  7. #7
    Join Date
    Dec 2006
    Posts
    905
    Rep Power
    18
    Party cove?? I see your from KS would that be the party cove @ LOTO?
    If so and your down often we should hook-up.

    Steve
    2006 CLASSIC 18 WHIPPLED MX 6.2, BRAVO 1, STAINLESS MARINE EXHAUST, LATHAM STEERING, IMCO 2" SHORTY, LABBED MIRAGE PLUS

    TALK IS CHEAP, I'M FROM THE "SHOW ME STATE" SHOW ME

  8. #8
    Join Date
    Jul 2011
    Posts
    7
    Rep Power
    0
    Well actually I was talking with Jake (the owner) and he told me he has a service manual for the stern, so yeah things should be easier. All the videos I've watched of guys doing a gimbal bearing looked kinda involved. Nothing I don't think I can handle just looks like a lot of bs to deal with.
    As far as party cove in the Ozarks this year not sure. The boat has been there but it was a few years ago. I wasn't there but the pictures sure made it look like fun. lol. No we have a smaller version at Perry lake just outside Topeka. If I can hammer out the quarks perhaps we can make the 3 hr journey down to the real party cove.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •