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porpusing problem

Old 08-23-2006 | 01:31 PM
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Default porpusing problem

Well I'm to my end with this boat.... I have a 1997 232 islander with the 454 carbed motor and a 23 pitch 3 blade bravo1 prop. I have to bury my trim tabs mid throttle and cant even think about opening her up or I'm out of control porpusing and all over the place. Does anyone have any suggestions or do I need my head examined? Thanks in advance. Curt
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Old 08-23-2006 | 01:45 PM
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Default Re: porpusing problem

Try putting about 40-pounds of sand (in plastic bags) in the anchor locker at the bow of your boat.

I had a similar problem with my 232 Boss when I first ran it. This modified center-of-gravity approach worked perfectly. After my tabs were repaired, I was able to remove the sand and retain the stability by running a slightly negative tab setting.
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Old 08-23-2006 | 02:27 PM
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Default Re: porpusing problem

Thankyou I will try anything at this point
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Old 08-23-2006 | 03:57 PM
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Default Re: porpusing problem

take the hook out of the bottom. lookat where the transom meets the bottom.see how much is there. Bajas are known for it. about the last 10 inches of the bottom will drop down instead of going stright to the transom.
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Old 08-23-2006 | 06:59 PM
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Default Re: porpusing problem

I'm not clear on the hook? I'm not real handy when it comes to basic mechanics
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Old 08-23-2006 | 07:32 PM
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Default Re: porpusing problem

Originally Posted by swaaby
I'm not clear on the hook? I'm not real handy when it comes to basic mechanics
Put a straight edge on the bottom of your hull in the transom area. If you have a large gap between the straight edge and the hull or if you cannot hold it flat against the fiberglass this could be a problem.

There is a fix for this.

Buck
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Old 08-23-2006 | 10:35 PM
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Default Re: porpusing problem

I'm sorry I should have explained it better. do what Buck said , use a yard stick put the edge long way from the transom forward see how much gap is between the edge and the bottom. you don't want any. I would be willing to bet you don't need the edge.
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Old 08-24-2006 | 11:51 AM
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Default Re: porpusing problem

That hull may be different, but the hook is there for a reason and the 2-3 people I know that have taken the hook out, had it put back because of very bad porpusing. Every pleasure boat hull I've loked at has hook of some degree.

Is this one just too much, and if so, has it always porpused like that? If so, seems like an issue that Baja would have wanted to fix.
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Old 08-24-2006 | 12:06 PM
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Default Re: porpusing problem

That is a trip!! I will look at this tonight, I've owned the boat a bout 6mos the previous owner did not disclose this issue "SUPRISE" But as long as I've owned its always done this. I have two friends that just bought 242 h2xs with 496ho's so i'm pushing my boat a little harder to keep up and thats why it's become more of a problem. Thank you, Curt
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Old 08-24-2006 | 02:01 PM
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Default Re: porpusing problem

Try contacting one of the prop vendors here for advice, maybe a 4 blade b1 22 pitch would help carry the bow better.
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