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techtalk:evo:engmech03a [2019/08/01 04:05] hippysmack [Using stud removal tools to loosen the stud] |
techtalk:evo:engmech03a [2019/08/04 14:23] hippysmack [Using Double Nuts] |
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This will also cause a leak if not done properly. \\ | This will also cause a leak if not done properly. \\ | ||
\\ | \\ | ||
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+ | ==== Soaking the threads for easier removal ==== | ||
+ | Soaking the threads is usually advised before attempting to remove them. \\ | ||
+ | Due to the angle of the block, it's not possible to actually leave anything next to the threads since it will simply slide down the block. \\ | ||
+ | So a 'holding chamber' was made to let the oil sit and penetrate the threads. \\ | ||
+ | |||
+ | The block was cleaned of oil and wiped down with acetone on a rag. \\ | ||
+ | The a small piece PVC pipe was silicone to the block and let cure. \\ | ||
+ | Lube oil (in this case cutting oil) was poured into the PVC to soak the stud threads overnight. \\ | ||
+ | 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)) | ||
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===== Stud Removal ===== | ===== Stud Removal ===== | ||
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==== Using a pipe wrench to loosen the stud ==== | ==== Using a pipe wrench to loosen the stud ==== | ||
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+ | A propane torch works well to melt or loosen old Loctite (red or blue) on the threads. \\ | ||
Catch the stud down low, but not so low as to run the wrench into the block. \\ | Catch the stud down low, but not so low as to run the wrench into the block. \\ | ||
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The pipe wrench is mainly to break torque. It's easier to get out of hand and damage something if it's not needed after that. \\ | The pipe wrench is mainly to break torque. It's easier to get out of hand and damage something if it's not needed after that. \\ | ||
+ | If the pipe wrench slips, you may need to adjust the wrench so the stud is closer to the inside teeth. \\ | ||
+ | You may need to loosen the jaws to move the stud back. \\ | ||
+ | The wrench doesn't have to be tight against the stud to grip. \\ | ||
+ | It works by the magic of binding onto the stud. \\ | ||
+ | It's important to hold center on the wrench and stud with one hand. \\ | ||
+ | You can try getting a grip by tilting the handle up with just a little pressure and then back level. \\ | ||
+ | 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)) | | ||
+ | |{{:techtalk:evo:engmech:removing_cylinder_stud_with_pipe_wrench_by_blue_scoot.jpg?direct&300|}}| | ||
+ | |||
+ | ==== Using Double Nuts / Jam Nuts ==== | ||
+ | |||
+ | |||
+ | | Three jam nuts used here. ((photo by A 4 liter V8 eater of the XLFORUM http://xlforum.net/forums/showthread.php?p=4442041#post4442041))| | ||
+ | |{{:techtalk:evo:engmech:tightening_cylinder_-_head_studs_by_a_4_liter_v8_eater.png?direct&300|}}| | ||
===== Stripped Case Threads ===== | ===== Stripped Case Threads ===== | ||