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GRutter · 07-18-2021, 08:58 PM

That appears to be a freeze crack, not a rust-through.
For a permanent fix, stitch weld, braze, or silver solder.
Epoxy products may work, as coolant isn't under pressure, but I wouldn't recommend.

07-18-2021, 08:58 PM	#13
GRutter Senior Member Join Date: Sep 2017 Location: Mint Hill, North Carolina Posts: 386	Re: Hole in front of Engine block That appears to be a freeze crack, not a rust-through. For a permanent fix, stitch weld, braze, or silver solder. Epoxy products may work, as coolant isn't under pressure, but I wouldn't recommend.