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GL1000- Important GL1000 Service Reminder (1 Page) 6-13-1975
SL #108 Tire and Wheel Rim Matching Information 6-20-75 (7 pages)
Service Tools Newsletter 7-31-75 (2 pages)
SB 1000 #3 Pressurised Cooling System Tester 10-10-75 (3 pages)
SB 1000 #1 Cylinder Head Core Plug Leakage- Revised 7-9-76 (3 pages)
SL #117 Exhaust Pipe and Muffler Paint Damage 9-30-76 (1 page)
SL #118 Instrument Troubleshooting 10-27-76 (5 pages)
PB 1000-2 Changes to Clutch Components 11-3-76 (1 page)
PB 1000-3 Changes to Right Front Engine Cover 1-5-77 (1 page)
SB 1000 #11 Final Drive Gear Case Cover Change 10-15-77 (1 page)
SB 1000 #12 New Main Bearing Caps 11-23-77 (1 page)
SB 1000 #13 Recall to Replace Rear Brake Pads 3-21-78 (5 pages)
SB 1000 #14 Cylinder Head Bolt Torque Change 11-8-78 (1 page)
GL1200
Special Consumer Report: 1984 and 1985 GW Rear Hub
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Classic Goldwing Technical Forums
GL1200
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<blockquote data-quote="DaveKamp" data-source="post: 212837" data-attributes="member: 5122"><p>Fortunately, this type of break is USUALLY recoverable the way you did it. The other method I use, is spot-welding a nut to it, spraying penetrant generously, then tapping on it with a pointed punch, then backing it out (usually) by hand. Don't feel bad about it- When a fastener like that is re-used in an aluminum block/head, it's frequently internally fatigued already, because the coefficient of thermal expansion is pretty darned high. Like Joe said, it doesn't take much to seal, and as the casting warms, it increases in size, so the bolt tension rises. This starts tiny fractures at the root of the threads, so when you're torquing 'em, they tend to tear through at those tiny fractures. Only solution is to use new bolts, and expect it to happen again...</p></blockquote><p></p>
[QUOTE="DaveKamp, post: 212837, member: 5122"] Fortunately, this type of break is USUALLY recoverable the way you did it. The other method I use, is spot-welding a nut to it, spraying penetrant generously, then tapping on it with a pointed punch, then backing it out (usually) by hand. Don't feel bad about it- When a fastener like that is re-used in an aluminum block/head, it's frequently internally fatigued already, because the coefficient of thermal expansion is pretty darned high. Like Joe said, it doesn't take much to seal, and as the casting warms, it increases in size, so the bolt tension rises. This starts tiny fractures at the root of the threads, so when you're torquing 'em, they tend to tear through at those tiny fractures. Only solution is to use new bolts, and expect it to happen again... [/QUOTE]
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Classic Goldwing Technical Forums
GL1200
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