need oil pan help
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need oil pan help

  1. #1
    Broke Member monstertahiti78's Avatar
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    Default need oil pan help

    I've received some unsolicited advice regarding the oil pickup for my motor. I'm being told that the oil pickup in a vdrive application is different than the pickup on a jet and if not changed the motor will starve for oil. Can anyone give me some advice as to weather this is correct or not. By the way my intentions are not to drag race all day long with this boat.

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    Yes that is correct, jet boat motors will use a rear sump style pan as the front of the engine is facing the front of the boat, this makes the oil go towards the pickup on acceleration. A v drive the rear of the engine faces the front of the boat. So if a rear sump pan and pickup from a jet is used upon acceleration the oil will go away from the pickup tube causing oil psi problems. You may be able to use the jet boat pan flipped around with a modified pickup?
    Last edited by bbfsouthwind; 03-02-2012 at 03:54 PM.

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    Senior Member Mojave85's Avatar
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    Switch pans and the pickup and be very glad you were given the advice. You can find a used pan on this forum in parts spam usually for a very fair price. The folks on this forum are always willing to help out if you have any questions. Good luck with your new ride.

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  6. #4
    Broke Member monstertahiti78's Avatar
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    Thanks guys. I just wanted to get some more info and some other opinions on it since I'm new to all of this. Looking at the pan it looks like it is a low profile pan and does not have a sump on either end. Does that make a difference?

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    Jackwagon Patrolman Rexone's Avatar
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    Most pans of this type have trap doors inside that allow the oil to flow one direction or the other (keeping it around the pickup in theory). It's important that the pickup is at the rear of the boat and that the trap doors of the pan you are using allow oil flow in that direction. The oil flows to the pickup on acceleration and the trap door keeps it there on deceleration (again in theory, there are many pan designs out there and some work much better than others). But that is the general jist of the concept.

    So if we are talking about a BBC, a jet pickup will be very short, and a v-drive pickup will be long due to the oil pump being towards the front of the boat with the engine flywheel end forward. The pickup as at the rear of the boat (front end of the engine in a vdrive due to engine being reversed).

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    Senior Member ol guy's Avatar
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    Quote Originally Posted by Rexone View Post
    Most pans of this type have trap doors inside that allow the oil to flow one direction or the other (keeping it around the pickup in theory). It's important that the pickup is at the rear of the boat and that the trap doors of the pan you are using allow oil flow in that direction. The oil flows to the pickup on acceleration and the trap door keeps it there on deceleration (again in theory, there are many pan designs out there and some work much better than others). But that is the general jist of the concept.

    So if we are talking about a BBC, a jet pickup will be very short, and a v-drive pickup will be long due to the oil pump being towards the front of the boat with the engine flywheel end forward. The pickup as at the rear of the boat (front end of the engine in a vdrive due to engine being reversed).
    To agree and with an add-on! you want the sump to be full of ample supply under accel or decell. So the trap doors need to hold oil where it is needed. I have seen V-drives dampner driven so in that case a jet boat pan may be what you need? The main point would be to keep the oil trapped at the pick-up in either situation. Sit back relax and think about how you want the baffles to allow flow and where the pick up should be! MLAO mark

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