Another Hobie drive well Crack

[bus kid]

Originally Posted by Phatford

Only Thrust Reversers I worked on were GulfStreams... and only G IV and G V at that.

Those would be the green ones,Although by the time you see them they are brown and black.

[pchen911]

Just trying to learn more about patching up kayaks, so please excuse my stupid questions.

How can you tell if this is a stress fracture? And how is it different than any other types of crack?

And why is it that you can't just smear some marine goop on it to stop the leak?

[Phatford]

The Stress that caused the crack, is going to keep putting stress on the area... So you are only doing a very temporary fix in all reality. But should last you till you can save for that new hull...

Imagine you hit your kayak when it was cold with a hammer and it cracked... One time event maybe it would be in an area that doesn't see much moving around.... You wouldn't be worried about stress on that crack.

[pchen911]

Originally Posted by Phatford

The Stress that caused the crack, is going to keep putting stress on the area...

I see. Thank you for the explaination.

So the repair for a stress crack needs to end up even stronger than the original plastic right?

Is it safe to assume that there is no way Marine Goop or 3M 5200 can be applied in a way that it is as strong or stronger than the original plastic?

[Matar]

This might work for you. Get a roll of fiberglass about 3" wide and wrap the whole tunel put on the resin and make sure it is a tight wrap, then after all is dry use 5200 over the crack to try and seal it. Just might work and it will reinforce the whole area around the drive unit.

Just my two cents.

[maui jim]

Run the kayak thru a shredder and send it back to Hobie and have them melt it down, and put it back in the Roto Mold....
Problem solved.....

[wiredantz]

Originally Posted by maui jim

Run the kayak thru a shredder and send it back to Hobie and have them melt it down, and put it back in the Roto Mold....
Problem solved.....

LOL

[WahooUSMA]

Originally Posted by maui jim

Run the kayak thru a shredder and send it back to Hobie and have them melt it down, and put it back in the Roto Mold....
Problem solved.....

X-2

[dorado50]

Let me clarify my above statement, a stress fracture can not be fixed ! No matter how many bolts and glues you use, plastic is not metal...... .

[Hypoxic1]

Those pedal brackets take a huge load and will continue to open even if you goop it, 5200 it, or whatever , it. You cannot effectively melt it back in shape A local kayak store "fixed" a stress crack in an old hobie of mine, and then loaned the boat to an old guy I was fishing with. His ass sank not too far off scripps pier thank god. We recovered him and the boat but it aint a good place to be.

You really dont want to discover a much bigger problem when you are out on the water and find you are loading up on water. Ive done it, and its a really bad spot to be in.

Good luck.
Chris

[bus kid]

Originally Posted by pchen911

Just trying to learn more about patching up kayaks, so please excuse my stupid questions.

How can you tell if this is a stress fracture? And how is it different than any other types of crack?

And why is it that you can't just smear some marine goop on it to stop the leak?

Think of a plastic spoon. If you bend the handle back and forth over and over again it will crack. hence a stress crack. Goop while plyable does not have the tensile strength to stand up to the stress of a flexing hull.You need to effectively stop the crack, as Phatford mentioned by drilling at the end of it then filling it with something that can withstand the regors of kayaking, Like loc tite 404.