86 OMC 2.5 liter 4cly outdrive on 24 Landau Pontoon


Old 05-30-05, 06:01 AM
buzzkutt-b's Avatar
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Join Date: Feb 2004
Posts: 54
86 OMC 2.5 liter 4cly outdrive on 24 Landau Pontoon

I have a crack in my exhuast manifold. This looks like the same thing "OMC 120 Horsepower HP Exhaust Intake Manifold Chevy II" I emailed the guy and he is not a boater and doesn't know. What do you -all think.

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Old 07-31-06, 08:05 AM
Join Date: Jul 2006
Posts: 2
What size prop did you have on that Pontoon

I also have a 24 foot pontoon boat and it had a 13.75 X 15 prop on it and I had a lot of slippage/cavitation/? I changed it to a 14x13 and it improved quite a bit but it is still not perfect. trimming the motor is hard to do becuase it is a manual trim and i have to doit with a wrench . Im looking for a Selectrim assembly from an omc engine. I hope you still visit this board. I sure would welcome any advice from other members. thanks Jack

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