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Broken thermostat housing bolt |
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billd 
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Forum Administrator Joined: Jun/27/2007 Location: Iowa Status: Offline Points: 30894 |
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 Posted: Jan/11/2018 at 7:16pm |
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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Red20
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Joined: Jan/29/2013 Location: Oceanside CA Status: Offline Points: 1556 |
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Posted: Jan/11/2018 at 8:03pm |
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I’ve used every method described here. Good luck.
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1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018
1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER |
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bbgjc
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Joined: Nov/24/2009 Location: No.VA Status: Online Points: 1660 |
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Posted: Jan/11/2018 at 8:29pm |
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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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CamJam
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Posted: Jan/11/2018 at 8:29pm |
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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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'73 Javelin 360 (current project)
'72 Baja Bronze Javelin SST '69 Big Bad Orange AMX (2018 Teague Heritage Award) SOLD  |
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990V8
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Posted: Jan/14/2018 at 2:09pm |
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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. Ivor |
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63 Canadian Ambo 990 V8 327
Lightweight V8 SIII Shopping Trolley |
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304-dude
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Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
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Posted: Jan/14/2018 at 2:39pm |
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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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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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69BBB3904spAMX wrote: