Older direct drive pylon mount all rusty....?????

[Wingnut016]

Hey everyone,
Looking at a decent 2000 Tige direct drive, owner commented that the pylon had been loose and he "had it fixed and will never come loose again". But, what I see Is a really rusty plate at the hull and pylon junction. Please help with any pictures of your pylon mounting and condition of it. Seems weird to me. I'll try to post pics. Thank you.

Sorry the pics are upside down.... It keeps loading that way, tried 3 times. Please help!

[Ruger761]

that seems a bit odd. I think my mount is stainless if I remember correctly. I'll try to get you a pic. What kind of water has the boat been in?

[Wingnut016]

Thanks for the reply and help with this. The boat has been on freshwater its entire life, absolutely no other signs of rust or saltwater exposure. Do those bottom plates mount through hull?

[Bakes5]

My pylon mount from 1998 is near pristine. That looks like someone who left the center plug in all the time and "drained" the boat using the transom plug. I'll bet there was standing water in there for years.

Those rusted in place bolts will never come loose again...that's for sure

[TeamAllen]

Very odd. Maybe the drain plug got left in and it sat in ran water or something?

[Bakes5]

My 1998 for comparison

image.jpg

[ChrisSnow]

My 06 20i is pretty crusty. But not that bad. Why it isn't stainless who knows.....

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[Solman]

Steel doesn't need to be exposed salt water to rust, not does it need to be completely submerged in water.
stainless steel and aluminium (sorry aluminum for you all &#128522 (depending on grade) are not necessarily galvanically compatible (galvanized steel can often be the better choice). After seeing your pylon mount, I think I might have to take a look at ours (96 pre2000) tonight.

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[talltigeguy]

He had it fixed alright. I doubt that it was with an OEM part. I think the main conclusion we can draw is that there is something dramatically different about the OEM metal and the steel that was used to repair it. Salt would just accelerate the process, but could look that bad from repeated fresh water exposure.