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Old 06-14-2021, 06:02 PM   #19
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Join Date: May 2010
Location: Wa.
Posts: 4,344
Default Re: Is my block dead?

Originally Posted by Gene F View Post
Anyone ever had luck with cleaning it out, and using a acetlyne torch and radiator solder?
I have never tried soft solder but used silver solder to repair many blocks.
V the crack and hit the surrounding area where the silver will be sticking, with a sanding disc or Spiracone. Don't touch the area afterward. Use plenty of flux, an oxidizing flame and don't heat it past where the silver melts.
This will even work in an exhaust port.
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