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  1. #16
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    There you go William, you could not have more knoledgable advice on your motor hull combo than Al's.

    Steve

  2. #17
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    Quote Originally Posted by racer View Post
    No vent holes will act just like you mentioned on a Bravo1 prop

    Alright, is there a fix other than drilling the prop? What is the phenomenon going on to cause a stall? I think I like the way the boat works with no holes minus the stalling if course, unless it's going to tear up something.
    Last edited by williamj; 10-17-2013 at 01:37 PM.
    William J.



    22 SST Stoker
    300 E'rude V8
    Ported and plugged


  3. #18
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    Click image for larger version. 

Name:	solas2.jpg 
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ID:	285424This is what I had to to my last prop William. I had my local prop shop drill the prop and install mercury exhaust plugs .They are plastic and come with differend size holes in them to tune with.
    I ended up running with the plugs removed (all three) for faster plane.
    Steve

  4. #19
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    The 24 bravo I have has single vent holes and you're right it is mean out of the hole. I just feel like it loses some efficiency between 35-50 mph. I don't want to drill the prop to fix a stall issue, there has to be another way.
    William J.



    22 SST Stoker
    300 E'rude V8
    Ported and plugged


  5. #20
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    Quote Originally Posted by racer View Post
    No vent holes will act just like you mentioned on a Bravo1 prop
    I'd like to understand more about this prop causing a stall condition. Can anyone help educate me.
    William J.



    22 SST Stoker
    300 E'rude V8
    Ported and plugged


  6. #21
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    The vent holes allow a little air on the blades so it kind of acts like a torque converter, this allows the engine to get to an rpm where it is starting to make HP. The holes have little if any effect once the engine reaches 2500 rpm. That is the best fix.

  7. #22
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    Quote Originally Posted by racer View Post
    The vent holes allow a little air on the blades so it kind of acts like a torque converter, this allows the engine to get to an rpm where it is starting to make HP. The holes have little if any effect once the engine reaches 2500 rpm. That is the best fix.
    Thanks for the education Al. I just had the prop balanced and blueprinted yesterday but I'll take it back and have Mike at Skips prop shop in charleston drill it for the plugs. Then I can drill them starting small until the problem is corrected. Thanks again for making yourself available to the group for advice. Obviously, your help saves a lot of us time and I for one really appreciate it!!
    William J.



    22 SST Stoker
    300 E'rude V8
    Ported and plugged


  8. #23
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    I don't think it's a prop issue. I have a 95 200hp Johnson that does the same thing after idling for a few minutes and for me it happens mostly when power loading on the trailer. I know somebody else with a 150 fast strike that the same thing also happens. A prop will not kill a motor so it has to be a fuel or air issue. Timing may also be a issue? Any thoughts?

  9. #24
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    Quote Originally Posted by williamj View Post
    Thanks for the education Al. I just had the prop balanced and blueprinted yesterday but I'll take it back and have Mike at Skips prop shop in charleston drill it for the plugs. Then I can drill them starting small until the problem is corrected. Thanks again for making yourself available to the group for advice. Obviously, your help saves a lot of us time and I for one really appreciate it!!
    If you're going to have it drilled, have the holes made to copy the Mercury PVS holes. This will give you the ability to use the different sized PVS plugs that Mercury uses, so you drill once and buy some inserts to try. Also, should you go to sell the prop later, you can install the PVS plug to close those back up, if the next guy wants it that way.

    Kevin @ R&R Prop Shop in Henderson, NV did mine on his CNC machine. 702-564-7502.
    Keith-

  10. #25
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    Sound lake a fuel issue to me also. As you stated in your first post you were out for 3 or 4 hours with no problem so unless you made a prop change during that time that your not telling us about this all started during the time you got on plane after the long idle and the time you got on plane prior to that. Check your recirc check valves and also if you have lost any rpm on top make sure a main jet isn't starting to loosen up.

  11. #26
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    Crazy engine hasn't acted up since that one day. Might have been fuel but I don't believe it due to the fact that I ran the snot out of it a week later with the same tanks with no issues???? I will be keeping my eye on this issue and might vent the prop. When you stab it at idle it goes to 2800 rpm's which I would think (26p. unvented Bravo I) is starting to make power. Any thoughts?
    William J.



    22 SST Stoker
    300 E'rude V8
    Ported and plugged


  12. #27
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    Is this a 3.6 or a 4.0?

  13. #28
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    4l with a little work done.
    William J.



    22 SST Stoker
    300 E'rude V8
    Ported and plugged


  14. #29
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    660 is a lot of hours. Do you know the compression numbers when new compared to now? Not saying its related to your issue but many more may come up running a tired engine.

  15. #30
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    Worst cylinder is 133 best is 139. Have pulled 1 head, cylinders smooth as glass.
    William J.



    22 SST Stoker
    300 E'rude V8
    Ported and plugged


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