| Re: [GMCnet] Exhaust manifold changing [message #325741 is a reply to message #325729] |
Sat, 04 November 2017 11:11   |
Bullitthead
Messages: 1411
Registered: November 2013
Karma:
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Senior Member |
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If you don't want to change the exhaust system right now and have access to a grinder, a torch, some brazing rods, and a 2x4 plank of flat wood, you can reuse the cracked one until you find another using its part #. If the bolt holes still line up, screw the manifold down through them to the 2x4. Clean that patch stuff outta the crack area and make a v notch all along the crack. Heat the manifold in an oven to get it uniformly hot and dried out and immediately braze the notch you carved all along the crack. Put it back in the hot oven to cool a little slower, and then check it out about an hour later. Not a forever fix, but I had one last a couple of years that way (until I pulled the motor) on a small block Ford.
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
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