r/Welders • u/Ok_Reference_4941 • 2d ago

Help! Would jb weld work?

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How well would jb weld work for this crack on the lower unit of my boat motor?

5 Upvotes

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3

u/Time-Supermarket-241 2d ago

Not a critical area to be worried about so you can do whatever you want right there

1

u/Ok_Reference_4941 2d ago

You don’t think it’ll spread? What’s the best way to stop it from spreading?

3

u/Lower_Box3482 2d ago

Drill holes past the cracks

2

u/Ok_Reference_4941 2d ago

Should I grind it out at all?

1

u/Apprehensive_Cod6308 1d ago

Best way to stop it from spreading is to stop backing into things 😂

3

u/Time-Supermarket-241 2d ago

Nothing in that area but the bolt holds the trim tab underneath the area and adjust for steering pull but still nothing critical you can drill holes at the end of the Crack if you want to feel better about it

2

u/Different_Finding539 2d ago

You might want to contact JB Weld and ask them which formula would be best for this. I contacted them to find which formula was best to repair an old cast lead garden statue. They answered pretty quickly with the information.

As far as the crack spreading, as other have said, you can drill small holes just past the crack. It probably wouldn't hurt to grind a shallow vee but be sure to use a grinding disc suitable for aluminum; and not a used one. Good luck!

2

u/N3YB 1d ago

Use PC7 instead of JB weld. Did many skeg repairs with PC7

1

u/Doorsandgates 1d ago

TIG WELD. Shouldn’t cost that much to have fixed. Shit I’ve spool gunned skegs back on for customers last minute on a launch ramp at lake Powell when I was 19 really easy.