Balance question
+ Reply to Thread
Results 1 to 11 of 11

Thread:
Balance question

  1. #1
    Senior Member 2savage4you's Avatar
    Join Date
    Dec 2007
    Location
    Bullhead city AZ
    Posts
    1,417

    Default Balance question

    If you have ran your engine with a flywheel for years and need to change it over to a flexplate , will this change have a big affect on the engine ?

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Cantard 71hallett's Avatar
    Join Date
    Mar 2008
    Location
    snow bank
    Posts
    5,017

    Default

    Not if you keep it the same type. (int/ext)
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

  4. #3
    Senior Member
    Join Date
    Jul 2008
    Location
    Kingman/Golden Vly, Az
    Posts
    1,278

    Default

    Quote Originally Posted by 468Bahner View Post
    If you have ran your engine with a flywheel for years and need to change it over to a flexplate , will this change have a big affect on the engine ?
    i'm really not sure about the big effect, but, it sure will save a bunch of weight , thus, its gotta help some!

    FastRat

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Senior Member ol guy's Avatar
    Join Date
    Mar 2008
    Location
    Lake Elsinore Ca
    Posts
    3,814

    Default

    Quote Originally Posted by 468Bahner View Post
    If you have ran your engine with a flywheel for years and need to change it over to a flexplate , will this change have a big affect on the engine ?
    Is or was the motor balanced? If so, internal or external? M

  7. #5
    No Sandbar To Far sanger rat's Avatar
    Join Date
    Dec 2007
    Location
    MI
    Posts
    3,276

    Default

    Quote Originally Posted by ol guy View Post
    Is or was the motor balanced? If so, internal or external? M
    I need to do the opposite. Flexplate to a flywheel. External balanced.
    Quote Originally Posted by One More Year View Post
    The only blab's I will even be a part of is just when it is me they are talking about. Aaaah yes I can see a few good looking shiny tall deck motors on the beach, with barely enough fuel to get back to the launch saying, "Holy crap how fast you think that Daytona was going man? That's like the 20th time he's gone by today?"

  8. #6

    Join Date
    Jul 2008
    Posts
    200

    Default

    Be sure you know if the engine is external balanced or internal balanced. Then replace parts accordingly.

  9. #7
    Senior Member 2savage4you's Avatar
    Join Date
    Dec 2007
    Location
    Bullhead city AZ
    Posts
    1,417

    Default

    Sooooooo.................. Yes or no..... changing the flywheel to a flexplate won't affect the engine.

    Its ext balance.

    This is my problem, I originally set up the boat with a BBC 454 with a flexplate... Now i bought Beerjets engine and it came with a flywheel.

    Now the engine needs to be moved forward about a 1/2" to make up the diff and need to buy longer bolts to install, PTO and flywheel..

    Or i just buy another flexplate and put everything together
    I just want to make sure im not going to hurt this engine

  10. #8
    [email protected]
    Join Date
    Feb 2008
    Location
    Ohio
    Posts
    1,011

    Default

    Put an external balance flexplate on and you'll be fine.

    Tim

  11. #9
    Senior Member ol guy's Avatar
    Join Date
    Mar 2008
    Location
    Lake Elsinore Ca
    Posts
    3,814

    Default

    Quote Originally Posted by 468Bahner View Post
    Sooooooo.................. Yes or no..... changing the flywheel to a flexplate won't affect the engine.

    Its ext balance.

    This is my problem, I originally set up the boat with a BBC 454 with a flexplate... Now i bought Beerjets engine and it came with a flywheel.

    Now the engine needs to be moved forward about a 1/2" to make up the diff and need to buy longer bolts to install, PTO and flywheel..

    Or i just buy another flexplate and put everything together
    I just want to make sure im not going to hurt this engine
    Take the balance card and the old flywheel with the new flex plate or vise versa to a decent machine shop that does balancing and if he knows what he is doing should be able to figure it out. External balance is putting everything in-balance on the ends of the crank that is not in-balance inside the motor. Factory uses a scale of in balance and not. That would be why you have weights on the balancer and the flywheel/flexplate. A good balancer will get balance within 1/4 gram, inside or out. I would try to get as close to the balance card as possible.

  12. #10
    Sit N' Spin Jetaholic's Avatar
    Join Date
    Dec 2007
    Location
    Droppin' the kids off at the pool
    Posts
    1,423

    Default

    Quote Originally Posted by 468Bahner View Post
    Sooooooo.................. Yes or no..... changing the flywheel to a flexplate won't affect the engine.
    2sav...you kinda have to have an engine for it to affect in the first place



    Quote Originally Posted by HammerDown
    Kendall L-427 Super Blu...extreme-pressure (ep) lithium complex keeps my thrusting balls happy
    Quote Originally Posted by back2k5 View Post
    Well I am putting in a nice stereo system in the Carrera...maybe Ill put on some rap and turn the scoop sideways

  13. #11
    Senior Member 2savage4you's Avatar
    Join Date
    Dec 2007
    Location
    Bullhead city AZ
    Posts
    1,417

    Default

    Quote Originally Posted by Jetaholic View Post
    2sav...you kinda have to have an engine for it to affect in the first place

    Well down here in Bullhead city we call this a engine... Now you boys in Cali might call it something else

+ 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

Tags for this Thread

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