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techtalk:ref:tools129 [2018/08/25 17:09] hippysmack [Spark Plug Hole Adapters for Diagnostic Testing] |
techtalk:ref:tools129 [2019/04/08 21:16] hippysmack [Flexible Extension for Dual Plug Heads] |
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| ^ Homemade Spark Plug Gapping Tool ((photo by Deep Diver of the XLFORUM http://xlforum.net/forums/showthread.php?t=395586&page=5)) ^ | ^ Homemade Spark Plug Gapping Tool ((photo by Deep Diver of the XLFORUM http://xlforum.net/forums/showthread.php?t=395586&page=5)) ^ | ||
| - | ===== Spark Plug Hole Adapters for Diagnostic Testing ===== | + | ===== Flexible Extension for Dual Plug Heads ===== |
| - | These are used in place of the spark plug to hook up diagnostic tools (compression tester, leak-down tester etc.). \\ They can also be used to adapt a 14mm TDC whistle or piston stop to a Sporty engine. | + | Care should be taken when installing the top spark plug on S models or any with dual plug heads. \\ |
| + | It's easy to get into the wrong position and break the end of the plug with a conventional wrench. \\ | ||
| - | This is a homemade adapter (1/4" NPT to 12mm) that's relatively simple to make if you are having trouble finding the adapter you need. | ||
| - | |A used spark plug is already threaded for the plug hole. You can grind the electrode off and remove the \\ insulator. Then thread the internal hole for the threads you'll be needing from you hose / apparatus ((photos by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=56497))|| | ||
| - | |{{:techtalk:ref:tools:homemade_12mm-to_quarter_npt_hose_adapter_1_by_cjburr.jpg?direct&300|}}|{{:techtalk:ref:tools:homemade_12mm-to_quarter_npt_hose_adapter_2_by_cjburr.jpg?direct&300|}}| | ||
| + | This flexible extension allows you to maneuver the plug into the hole using the handle on the end to start the threads without much force. \\ | ||
| + | This was once available at most auto parts stores and is still available online. \\ | ||
| + | If the plug doesn't thread easily, the grip will slip on the plug instead of forcing the threads together and cross-threading them. \\ | ||
| + | Then you simply back it out, re-position and try again until the threads are started correctly. \\ | ||
| + | Once the threads are started, remove the flex tool, use a conventional plug wrench to snug up and then a torque wrench for final tightening. \\ | ||
| - | You'll need to tap threads into the gutted out portion of the plug. In order to get good threads in the plug body you need a bottoming tap (no taper). \\ | + | | STEELMAN PRO 08310R flexible 12-Inch spark plug starter tool ((photos by Hippysmack)) ||| |
| - | Or, you will have to grind down a 1/4" NPT tapered tap and make it shorter until it is able to go deep enough into the plug body to cut threads in the sides. | + | |{{:techtalk:ref:tools:flexible_spark_plug_extension_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:flexible_spark_plug_extension_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:flexible_spark_plug_extension_3_by_hippysmack.jpg?direct&300|}}| |
| - | |Break the porcelain off with a hammer (eye protection required). Take a small screwdriver and break up the porcelain under the crimp (portion that holds the \\ porcelain in the plug body ), this will let you grind the crimp only and the job will go faster as the porcelain is harder to grind. Then pull the rest of it out. \\ You now have to tap threads in the gutted area for 1/4" NPT (national pipe thread)in the plug body and you are ready to go. ((photos by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=56497))||| | + | |
| - | |{{:techtalk:ref:tools:homemade_12mm-to_quarter_npt_hose_adapter_3_by_cjburr.jpg?direct&300|}}|{{:techtalk:ref:tools:homemade_12mm-to_quarter_npt_hose_adapter_4_by_cjburr.jpg?direct&300|}}|{{:techtalk:ref:tools:homemade_12mm-to_quarter_npt_hose_adapter_5_by_cjburr.jpg?direct&300|}}| | + | |
| - | ^ Homemade 1/4" NPT to 12mm Spark Plug Hole Adapter ^^^ | + | |
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