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Broken thermostat housing bolt

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billd View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote billd Quote  Post ReplyReply Direct Link To This Post Posted: Jan/11/2018 at 8:16pm
Originally posted by 69BBB3904spAMX 69BBB3904spAMX wrote:

X3 weld a nut on it


Same topic we covered on another thread and the welding a nut onto a broken bolt was one of the suggestions in that thread, too.
You have something to put a wrench on plus the heat on the bolt will help break the bond it has with the hole.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Red20 Quote  Post ReplyReply Direct Link To This Post Posted: Jan/11/2018 at 9:03pm
I’ve used every method described here. Good luck.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bbgjc Quote  Post ReplyReply Direct Link To This Post Posted: Jan/11/2018 at 9:29pm
Left handed drill bits. As you drill you also are backing the threads out.  Heat it with a propane torch and use the bits.  Grind the top flat on the offending bolt.  The welding trick works, but I don't thinK I'd do it with the intake on the engine. Spatter and such.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CamJam Quote  Post ReplyReply Direct Link To This Post Posted: Jan/11/2018 at 9:29pm
Lots of great ideas.  I guess I will try welding the nut on first.  If that fails, you've all given me some good backup plans.  Thanks everyone!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 990V8 Quote  Post ReplyReply Direct Link To This Post Posted: Jan/14/2018 at 3:09pm
When I broke a bolt on my Rolls, I heated the manifold around it for a long time, then shot the stub very carefully with some of that plumber's freeze spray.
That loosened the bolt so it came with an extractor.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote 304-dude Quote  Post ReplyReply Direct Link To This Post Posted: Jan/14/2018 at 3:39pm
If stud is out far enough you can hit it with a hammer to crack it free. The engine shop guys gave me that hack, an it works even on questionable rusty bolts.
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