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techtalk:ref:tools101 [2018/09/09 00:10]
hippysmack [Primary and Cam / Gearcase Cover Removal]
techtalk:ref:tools101 [2022/03/23 21:14] (current)
hippysmack
Line 5: Line 5:
  
 ====== Engine Cases ====== ====== Engine Cases ======
 +===== Splitting Cases =====
 +Usually, after all the bolts have been removed, the case halves come right apart.\\
 +However, sometimes they will stick together and require light tapping with a rubber mallet. \\
  
-====== Primary ​and Cam Gearcase Cover Removal ======+Caution should be taken around the lower run of the left case, on IH engines, as it is fragile (pretty thin at the 3 nut and bolt area). ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1297584&​page=6)) \\
  
-  * You can use a piece of cardboard or an old pizza box to keep from mixing up the primary cover screws (or cam cover). +If the cases are still stubborn to remove; \\   
-  * Make an outline on the cardboard using the new gasket or even the cover itself and poke the holes for the screws with a punch or Phillips screwdriver. +Light pressure applied in the transmission area followed by tapping ​the right case at the generator mount should work\\ (not at the far end of generator mount but nearest the crankshaft ​as possible) ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1297584&​page=6)) \\
-  * Keeping ​the bolts in order as you take them off saves time and headache ​of remembering which length goes where.+
  
-|{{:​techtalk:​ref:​tools:​primary_cover_screw_holder_by_luxblue.jpg?​direct&​300|}}|{{:​techtalk:​ref:​tools:​gearcase_screw_holder_by_johnny_wolf.jpg?​direct&​300|}}| +This tool is will put '​some'​ pressure from within to help separate the case halves while tapping the case halves\\  
-|  Protecting / retaining primary cover ((photo by luxblue ​of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1098213&highlight=oil+pump+spacer)) and Gearcase Cover ((photo by Johnny Wolf of the XLFORUM)) Screws ​ || +The tool below is basically an ironhead clutch spring compression tool (homemade) without the long standoffs. ​((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1297584&page=6)) \\
-===== Primary Cover =====+
  
 +  * Bolt it to primary gasket surface.
 +  * Place a piece of wood inside the transmission compartment between the tool's threaded rod and the right case.
 +  * The tool screws in against the wood and the wood puts outward pressure on the right case half.
  
 +|{{:​techtalk:​ref:​tools:​tool_for_splitting_cases_1_by_dirtycory.jpg?​direct&​300|}}|{{:​techtalk:​ref:​tools:​tool_for_splitting_cases_2_by_dirtycory.jpg?​direct&​300|}}|{{:​techtalk:​ref:​tools:​tool_for_splitting_cases_3_by_dirtycory.jpg?​direct&​300|}}|
 +^  Homemade Tool for Splitting Cases ((photos by DirtyCory of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1297584&​page=6)) ​ ^^^
  
 +
 +====== Primary and Cam / Gearcase Cover ======
 +Early primary and cam covers had flat head, phillips and posidrive heads. \\
 +It's difficult to get them tight enough to keep from leaking and easy to get them too, causing leaks, case cracks or broken screws. \\
 +This prompts some to change the screws out to modern hex (allen) head socket screws. \\
 +Even allen head screws won't take a lot of over-torque without distorting the drive slots in the head though. \\
 +For the most even tightening of any of these screws, you can use a torque wrench with the correct bits. \\
 +
 +You can find hex bits at hardware / tool stores that are either made to socket wrench adapters or made to insert into them. \\
 +Then simply attach the adapter to a torque wrench and torque away. \\
 +With the cover screws only being spec'd at 80-110 in/lbs, an in/lb beam torque wrench will give more consistent results than an in/lb clicker wrench. \\
 +The pic below shows a 0-80 in/lb torque wrench with adapters for a flat head screw. Just use the correct hex bit needed. \\
 +
 +{{:​techtalk:​ref:​tools:​torque_wrench_with_hex_bit_adapters_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)) \\
 +===== Primary Cover =====
 +\\
 ===== Cam / Gearcase Cover ===== ===== Cam / Gearcase Cover =====