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  1. #1
    Join Date
    Jan 2003
    Location
    Minnesota and Wisconsin
    Posts
    1,115

    Default Propeller replacement

    We have a 1999 Moomba Mobius with 5.7L Carburated Indmar direct drive. In a local public landing this morning we hit something that bent two blades on this prop. So I am looking for a replacement. My local ski shops have them but can't get to mu for a week. If I had a puller I could pull it and get to a prop shop in a day. That will be my plan.

    Problem: General comments regarding prop replacement suggest that you should replace the prop with what is on there from the boat mfr. In this case an OJ Legend 13x13 cupped NiBrAl.

    My local prop guy tells me I should replace it with an ACME. First question is do we think this will have any adverse effects? Second, is it really worth the extra money??

    TIA
    Dave
    If you believe something to be true, it will be - in it's consequences.
    http://bensonwdby.home.comcast.net/

    1999 Mobius - DD - 5.7L Carb - Perfect Pass

  2. #2
    Join Date
    Jan 2003
    Location
    Minnesota and Wisconsin
    Posts
    1,115

    Default Replying to Topic 'Propeller replacement'

    So here is what I ended up with. An ACME 3 blade 13 x 12. The prop guy said I would love it. I ran it tonight and am not so sure. It seems louder. Otherwise it does give a couple mph on top end and not sacrifice on hole shot. Supposed to be a flatter slalom wake, but wakes don't shake me much so I can't say if it is or not.

    Jury is still out on this.

    Dave
    If you believe something to be true, it will be - in it's consequences.
    http://bensonwdby.home.comcast.net/

    1999 Mobius - DD - 5.7L Carb - Perfect Pass

  3. #3
    Join Date
    Jul 2002
    Location
    London Ontario Canada
    Posts
    1,839

    Default Replying to Topic 'Propeller replacement'

    Dave,

    I'm curious as well. i'm looking for a little more top end as well. Is it the acme cnc
    prop? i have a99 as well and mine tops out at 44 with original prop, and about 42
    when doing one foots.

    a need for speed
    Doug
    09 21v LAUNCH

    run your engine after you change your oil
    68 th Member. WS420,HSE Revolution, OJ 466, Acme1157,1100 sacs,Kicker HLCD's n IX500.4, Supra Coolies
    Doug

  4. #4
    Join Date
    Jan 2003
    Location
    Minnesota and Wisconsin
    Posts
    1,115

    Default Replying to Topic 'Propeller replacement'

    We got an ACME 541, 13x12. I contacted ACME directly and they recommended the same as the prop dealer. Yes it is the CNC guys.

    We got a couple mph so our top is about 47-48 with no ballast and 400 lbs of passengers. (Yes more than one).

    Don't pull footers. Hole shot is not that different than the Legend. It is supposed to have a better slalom wake, but I am not so sure. I was getting bounced around a bit at 15 off@34 this morning. But it could have been me. I was falling all over the place.

    I think it is louder, but that could be a result of other proplems resulting from the low speed impact on the ol prop?? Hope it did not do any internal damage. No vibration, just different noise. Almost like it is echooing off the hull??

    I am going to get my OJ repaired and swap them out (now that I have a puller and understand what how it works).

    Stand-by
    Dave
    If you believe something to be true, it will be - in it's consequences.
    http://bensonwdby.home.comcast.net/

    1999 Mobius - DD - 5.7L Carb - Perfect Pass

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