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  1. #1
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    Allison Jack Plate

    Well, got the new toy mounted today. Thanks again Don! Find out how she performs tomorrow.

    Anybody had experience with one on a 15 Baja? Total of 4 1/2" setback.

    Raised the motor 1/2". Propshaft's now bout 5" below the keel. Good place to start?

    How soon til I need LWP?
    Attached Thumbnails Attached Thumbnails DSCN1121.jpg   DSCN1118.jpg  
    '71 Glastron V153 - Composite rebuild - Unceremoniously wrecked
    '81 Baja 15 SS - "nine-paged" '77 140
    '81 Carlson C500 Metric - Currently in foster care
    '70 something Speedcraft - Allison 16R clone - Undergoing restoration
    '79 Carlson CVZ 19 - Far back burner
    WALK TALL AND CARRY A BIG BILGE PUMP

  2. #2
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    Its still pretty deep... Make sure you have a trustworthy h2o pressure gauge.. Incrementally bring the engine up until you begin to see erratic pressure readings (sucking air), then lower back down incrementally until the pick-ups are pulling in no air.. If you want that highest setting then you can plug the top one or two intake holes, or then go to a nosecone and keep going up..

    It may start to slip when coming out of the hole, over revving a bit till the bow lays over and then it will hook-up and move on just fine
    Kevin Kiser

  3. #3
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    You should be able to come up till the top of the lower unit barrel is even with the keel.

  4. #4
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    I dunno Fred. Not sure how much I wanna raise it before adding a low water pickup. If you lay a straight edge on the bottom I've already got the top two intake holes exposed?
    '71 Glastron V153 - Composite rebuild - Unceremoniously wrecked
    '81 Baja 15 SS - "nine-paged" '77 140
    '81 Carlson C500 Metric - Currently in foster care
    '70 something Speedcraft - Allison 16R clone - Undergoing restoration
    '79 Carlson CVZ 19 - Far back burner
    WALK TALL AND CARRY A BIG BILGE PUMP

  5. #5
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    Water rises as it exits the rear of the hull.Looks like you have a couple inches at least.

  6. #6
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    Quote Originally Posted by outasite View Post
    Water rises as it exits the rear of the hull.Looks like you have a couple inches at least.
    Went up another inch. We'll see what happens.
    Attached Thumbnails Attached Thumbnails DSCN1124.jpg  
    '71 Glastron V153 - Composite rebuild - Unceremoniously wrecked
    '81 Baja 15 SS - "nine-paged" '77 140
    '81 Carlson C500 Metric - Currently in foster care
    '70 something Speedcraft - Allison 16R clone - Undergoing restoration
    '79 Carlson CVZ 19 - Far back burner
    WALK TALL AND CARRY A BIG BILGE PUMP

  7. #7
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    With the current gearcase/pickups you could easily run it 1 - 1 1/2" below plank (center of prop shaft to running plank).
    Looks way, way deep at the moment!

  8. #8
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    Time to get a LWP on that thing and let her eat. I think a lot of your handling issues will clear up when you get it set up better.
    13' Biel tunnel AKA "Flight Risk"
    13" Modified Yamaha V4 - 101 mph

    21' Paramount
    Mercury 300 Promax

  9. #9
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    Thanks guys. Ya I know it needs to come up. Bob's cone is on the list. Anyplace cheaper to get one than buying direct? They want a lil under $200.
    '71 Glastron V153 - Composite rebuild - Unceremoniously wrecked
    '81 Baja 15 SS - "nine-paged" '77 140
    '81 Carlson C500 Metric - Currently in foster care
    '70 something Speedcraft - Allison 16R clone - Undergoing restoration
    '79 Carlson CVZ 19 - Far back burner
    WALK TALL AND CARRY A BIG BILGE PUMP

  10. #10
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    I think I saw one sitting at Rich Junkers shop. Thinks its a TH Marine nosecone. Give him a call. He might make you a deal if you have him weld it.
    13' Biel tunnel AKA "Flight Risk"
    13" Modified Yamaha V4 - 101 mph

    21' Paramount
    Mercury 300 Promax

  11. #11
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    'Preciate the heads up Chris. But think I'm gonna hold out for a Bob's.

    In the mean time I went diggin through Ernie's junk pile and came up with this:

    Figgered a pressure gauge'd be a good idea. Idles at 3 psi on muffs. Is that okay/accurate? Ain't stuck it in the water yet?
    Attached Thumbnails Attached Thumbnails PressureGaugeDash.JPG  
    '71 Glastron V153 - Composite rebuild - Unceremoniously wrecked
    '81 Baja 15 SS - "nine-paged" '77 140
    '81 Carlson C500 Metric - Currently in foster care
    '70 something Speedcraft - Allison 16R clone - Undergoing restoration
    '79 Carlson CVZ 19 - Far back burner
    WALK TALL AND CARRY A BIG BILGE PUMP

  12. #12
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    3lbs is plenty on the hose.. Don't rev it up hard on the muffs though..
    Kevin Kiser

  13. #13
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    In post #1 it looks like the bottom of the jackplate os sticking out from the transom a bit....???

    If ya dont want to go with a lwp mite think of cilling in the top 2 holes and opening up the bottom ones and feathering the water into them..
    My 2 cents

  14. #14
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    Thanks for confirming that Ted. Also been told I oughta get 10 - 12 psi at idle with it in the water. And 20 mebbe 25 at a slow cruise. Do you concur?
    '71 Glastron V153 - Composite rebuild - Unceremoniously wrecked
    '81 Baja 15 SS - "nine-paged" '77 140
    '81 Carlson C500 Metric - Currently in foster care
    '70 something Speedcraft - Allison 16R clone - Undergoing restoration
    '79 Carlson CVZ 19 - Far back burner
    WALK TALL AND CARRY A BIG BILGE PUMP

  15. #15
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    Quote Originally Posted by roadkill636 View Post
    In post #1 it looks like the bottom of the jackplate os sticking out from the transom a bit....???

    If ya dont want to go with a lwp mite think of cilling in the top 2 holes and opening up the bottom ones and feathering the water into them..
    My 2 cents
    Not sure what you mean RK. It's flush against the transom?

    Gonna go with lwp soon's possible. Just ain't got enough jingle right now ...
    '71 Glastron V153 - Composite rebuild - Unceremoniously wrecked
    '81 Baja 15 SS - "nine-paged" '77 140
    '81 Carlson C500 Metric - Currently in foster care
    '70 something Speedcraft - Allison 16R clone - Undergoing restoration
    '79 Carlson CVZ 19 - Far back burner
    WALK TALL AND CARRY A BIG BILGE PUMP

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