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you aren't changing the "up" position as it now sits, just adding another tapped hole further up the pole for the down position, or if it's a pressure fit, put a bracket on the bottom to only allow...

went back and looked at the 3rd pic of what I would gather is a moomba ski pylon in the aluminum housing. why not just thread another hole, cut out the bottom and allow the current pylon to drop...

based on how the supra piece operates, you have now figured out how to get a piece that slides up and down, but what to do to keep it in the up position?
the supra uses a bolt that slides up and...

uncapping the tube should only take a couple of minutes with a grinder? or a metal recip saw?

or perhaps weld in a sleeve the diameter of the pylon you have, then just use the same bolt setup like the supra. it rides in a channel, and at the fully extended position, it spins 90deg and the...

yea, I second that one razzman... if it's being supported by a bolt, bottom shouldn't matter, and for drainage, it shouldn't be sealed anyway.

I'll post up pics when I get home this afternoon if...

I have a supra, so I know what I am dealing with, and if anyone needs detailed pics,lmk..

now onto the moomba issue..

if it's bolted thru the sides, then it should be a bolt that takes no...

how's the ski pylon attached?
if its bolted on the bottom, maybe some type of quick release and buy another one, cut it down to the stub and use it as a filler? swap the tall one for the short one...

why can't you use the supra part?
mine is nothing more than a round tube welded to the bottom of the metal plate that the engine cover latches to. the actual pylon is a round metal piece with a...