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techtalk:evo:engmech03a [2021/07/18 06:11] hippysmack [Loose Head Bolt Studs] |
techtalk:evo:engmech03a [2024/01/03 20:54] hippysmack |
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| The two side by side bolt holes on the right side in the pic below are each drilled into the opposing holes and tapped. \\ | The two side by side bolt holes on the right side in the pic below are each drilled into the opposing holes and tapped. \\ | ||
| So each hole is depending, in part, of the strength of the other. \\ | So each hole is depending, in part, of the strength of the other. \\ | ||
| - | With the bolts loosening, it is at least suspect that the threads or the hole strength is compromised. ((Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?t=2074117&page=2)) \\ | + | With the bolts loosening, it is at least suspect that the threads or the hole strength is compromised. ((Hippysmack of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-motor-top-end/197474-leaking-head-gasket-loose-head-bolts/page2?t=2074117&page=2)) \\ |
| - | | Weakest head stud holes in the case. ((photo by Hippysmack)) | Head bolt pulled out of the case. ((photo by Blue Scoot of the XLFORUM http://xlforum.net/forums/showthread.php?p=5793625)) | | + | | Weakest head stud holes in the case. ((photo by Hippysmack)) | Head bolt pulled out of the case. ((photo by Blue Scoot of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-motor-top-end/198541-repairing-cylinder-studs-cases/page5#post4360678)) | |
| |{{:techtalk:evo:engmech:weakest_cylinder_bolt_threads_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:head_bolt_pulled_out_by_blue_scoot.jpg?direct&300|}}| | |{{:techtalk:evo:engmech:weakest_cylinder_bolt_threads_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:head_bolt_pulled_out_by_blue_scoot.jpg?direct&300|}}| | ||
| Line 49: | Line 49: | ||
| This made removing the stud with an 18" pipe wrench easier the next day. \\ | This made removing the stud with an 18" pipe wrench easier the next day. \\ | ||
| {{:techtalk:evo:engmech:stuck_cylinder_stud_removal_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) | {{:techtalk:evo:engmech:stuck_cylinder_stud_removal_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) | ||
| - | |||
| ===== Stud Removal ===== | ===== Stud Removal ===== | ||
| ==== Using stud removal tools to loosen the stud ==== | ==== Using stud removal tools to loosen the stud ==== | ||
| - | |||
| |{{:techtalk:evo:engmech:bent_socket_ext_while_removing_cylinder_stud_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:broken_stud_extractor_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:damaged_cylinder_stud_while_removing_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:engmech:bent_socket_ext_while_removing_cylinder_stud_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:broken_stud_extractor_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:damaged_cylinder_stud_while_removing_by_hippysmack.jpg?direct&300|}}| | ||
| - | |||
| ==== Using a pipe wrench to loosen the stud ==== | ==== Using a pipe wrench to loosen the stud ==== | ||
| Line 82: | Line 79: | ||
| You just have to find a way to make the wrench bind against the stud. \\ | You just have to find a way to make the wrench bind against the stud. \\ | ||
| - | |If the wrench doesn't grip, make it bind on the stud. ((photo by Blue Scoot of the XLFORUM http://xlforum.net/forums/showthread.php?t=2074117&highlight=head+gasket&page=6)) | | + | |If the wrench doesn't grip, make it bind on the stud. ((photo by Blue Scoot of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-motor-top-end/197474-leaking-head-gasket-loose-head-bolts/page6?t=2074117&highlight=head+gasket&page=6)) | |
| |{{:techtalk:evo:engmech:removing_cylinder_stud_with_pipe_wrench_by_blue_scoot.jpg?direct&300|}}| | |{{:techtalk:evo:engmech:removing_cylinder_stud_with_pipe_wrench_by_blue_scoot.jpg?direct&300|}}| | ||
| Line 90: | Line 87: | ||
| Be sure to use rags around the bore so as to not get any debris in the engine while removing the stud(s). \\ | Be sure to use rags around the bore so as to not get any debris in the engine while removing the stud(s). \\ | ||
| - | | Three jam nuts used here. ((photo by A 4 liter V8 eater of the XLFORUM http://xlforum.net/forums/showthread.php?p=4442041#post4442041))| | + | | Three jam nuts used here. ((photo by A 4 liter V8 eater of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/148266-building-a-90-inch-sledge-hammer/page11#post3236162))| |
| |{{:techtalk:evo:engmech:tightening_cylinder_-_head_studs_by_a_4_liter_v8_eater.png?direct&300|}}| | |{{:techtalk:evo:engmech:tightening_cylinder_-_head_studs_by_a_4_liter_v8_eater.png?direct&300|}}| | ||
| - | ===== Cleaning the Case Threads ===== | ||
| + | ===== Cleaning the Case Threads ===== | ||
| The threads on the head studs as well as in the case need to be clean and free of rust / debris and they need to be straight in order to obtain proper torque on the heads. \\ | The threads on the head studs as well as in the case need to be clean and free of rust / debris and they need to be straight in order to obtain proper torque on the heads. \\ | ||
| Line 102: | Line 99: | ||
| ===== Stripped Case Threads ===== | ===== Stripped Case Threads ===== | ||
| - | |||
| These could be repaired with Heli-coils. \\ | These could be repaired with Heli-coils. \\ | ||
| But the repair must be straight with no wobble when drilling. \\ | But the repair must be straight with no wobble when drilling. \\ | ||
