Changing Bravo propshaft
+ Reply to Thread
Results 1 to 10 of 10

Thread:
Changing Bravo propshaft

  1. #1
    Senior Member
    Join Date
    Jan 2008
    Location
    Lago Vista, TX
    Posts
    322

    Default Changing Bravo propshaft

    Well I hit something while in the boat, dog eared my Bravo 1 prop. I put a dial indicator on the propshaft....f0ck it is out of round. I have never replaced a bravo 1X propshaft. I assume you drain the lower unit, take out the bolts on either side of the propshaft, that is where i stop. What goes on from there? What comes out with propshaft? What is reusable? Kind of lubricant what to use, blah blah blah. Part numbers? It is a Bravo 1-X the gear ratio is 1.5 Any help would be great including an inside source for a new propshaft or a good used one. Thanks, Dave

    2006 Advantage 28 Sport Cat BR
    Lake Travis
    Austin, Texas

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    custom boat lover
    Join Date
    Feb 2009
    Posts
    498

    Default

    The first thing you will need to order is a Service Manual from a Mercruiser dealer, Part number 90-865612010 - #39 SERVICE MANUAL BRAVO STERNDRIVES.

    A good place to look up and order parts from is Bam Marine, Here is a link, Good luck with it.

    http://www.mercruiserparts.com/

    When you look up the parts, make sure that your drive serial number falls within the serial number range given in the link to help ensure you get the right parts.
    Last edited by Boat Tech; 05-01-2010 at 05:54 PM.

  4. #3
    It's what we do BDMarine's Avatar
    Join Date
    Dec 2007
    Location
    El Monte
    Posts
    723

    Default

    It's not a pull one out and put another one in type of job. I would recommend having a certified shop do it.
    http://www.performanceboats.com//signaturepics/sigpic837_1.gif
    B & D Marine Performance
    El Monte, Ca.

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Senior Member Hullshot's Avatar
    Join Date
    Dec 2007
    Location
    Dicovery Bay
    Posts
    4,218

    Default

    Quote Originally Posted by BDMarine View Post
    It's not a pull one out and put another one in type of job. I would recommend having a certified shop do it.
    X-2

  7. #5
    Senior Member
    Join Date
    Jan 2008
    Location
    Lago Vista, TX
    Posts
    322

    Default

    I'll make some calls, thanks. Dave

    2006 Advantage 28 Sport Cat BR
    Lake Travis
    Austin, Texas

  8. #6
    Custom User Title
    Join Date
    Dec 2007
    Location
    Lago Vista, TX
    Posts
    105

    Default

    Hey Dave,

    Are you sure the dial indicator wasn't just reading a little goofy as you were trying to measure a rotating shaft?

    I've bent quite a few props myself, but have NEVER bent a propshaft....

    I would try putting a good prop on it and running it out of the water while watching the prop.. you will notice if it's messed up....

    If it IS truly bent then just bring it on over with a case of beer... I have a really BIG sledge hammer...


    Doug

  9. #7
    It's what we do BDMarine's Avatar
    Join Date
    Dec 2007
    Location
    El Monte
    Posts
    723

    Default

    Not good on the cone clutch to shift the drive on the trailer with a prop on it. The best way is with a dial indicator. If you can't do that securely, start it, put it in gear with out the prop on, and watch the "center" on the end of the propshaft for run-out.
    FWIW Bravo 1 propshafts (not XR) bend easily when hitting something with a ss prop.
    http://www.performanceboats.com//signaturepics/sigpic837_1.gif
    B & D Marine Performance
    El Monte, Ca.

  10. #8
    Senior Member
    Join Date
    Jan 2008
    Location
    Lago Vista, TX
    Posts
    322

    Default

    I wil put my dial indicator on it again, boatally insane is my neighbor, we wont do anything stupid, i hope, and then if it is truly out of round, which i think it is, i talked to Bob at Full Throttle Marine today and he said he would replace it and check all the goodies for around 2 hours labor plus parts. http://www.fullthrottlemarine.com/

    If ya'll dont know Bob he is the one who posts on OSO about 496 myth busting and true HP and Torque of the 496 HO including aftermarket exhaust. Check out his High Performance projects link on the above website link. If you ever wanted to know about the 496 this is the link to check out. Full of wet dyno testing.

    2006 Advantage 28 Sport Cat BR
    Lake Travis
    Austin, Texas

  11. #9
    Senior Member Hullshot's Avatar
    Join Date
    Dec 2007
    Location
    Dicovery Bay
    Posts
    4,218

    Default

    Quote Originally Posted by BDMarine View Post
    Not good on the cone clutch to shift the drive on the trailer with a prop on it. The best way is with a dial indicator. If you can't do that securely, start it, put it in gear with out the prop on, and watch the "center" on the end of the propshaft for run-out.
    FWIW Bravo 1 propshafts (not XR) bend easily when hitting something with a ss prop.
    Why? What does it hurt?

  12. #10
    Senior Member
    Join Date
    Oct 2008
    Posts
    1,003

    Default bravo

    I would use R/T marine in Granite Shoals,bob seams to be alright but a little expensive, ask for Sam ratliff he is a good guy

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Digg This Thread

Posting Permissions

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95