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techtalk:ih:engctl02 [2020/03/09 09:01]
ixl2relax [Solenoid]
techtalk:ih:engctl02 [2020/03/09 09:48]
ixl2relax [Solenoid]
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 ====== Solenoid ====== ====== Solenoid ======
  
 +{{ :​techtalk:​ih:​engctl:​72-xlh-startersolenoid-operation.jpg?​400|}}
 A typical well-made solenoid as two windings connected to the small terminal. ((Oldwrench of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=522413&​page=2)) \\ A typical well-made solenoid as two windings connected to the small terminal. ((Oldwrench of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=522413&​page=2)) \\
-One coil (HOLD-IN) goes to solenoid case ground and the other (PULL-IN) goes to the big terminal ​for the starter lead.\\ +One coil (HOLD-IN) goes to solenoid case ground and the other (PULL-IN) goes to big terminal ​(starter lead).\\ 
-When you hit the starter button, battery voltage goes thru the starter relay into the solenoid small terminal, ​then goes\\ +When you hit the starter button, battery voltage goes thru the starter relay into the solenoid small terminal,​\\ 
-·· thru the '​PULL-IN'​ windings (which are grounded thru the starter motor) and thru the '​HOLD-IN'​ windings (to case ground).\\+·· then goes thru the '​PULL-IN'​ windings (which are grounded thru the starter motor) and thru\\ 
 +·· the '​HOLD-IN'​ windings (to the case ground).\\
 **When these coils are activated together, they pull the plunger in.** **When these coils are activated together, they pull the plunger in.**
  
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 **IT IS IMPORTANT** that you use the __**Large Long** Terminal to connect to the Battery__ and the __**Large Short** Terminal to connect to the Starter Motor__. If the Large Terminals of your solenoid are not one Long & one Short, use a multimeter or test light to bench test which Large Terminal has some continuity to the Small Terminal. Whichever Large Terminal has some continuity to the Small Terminal is the one that is connected to the Internal PULL-IN Coil and is the one to be connected to the Starter Motor. **IT IS IMPORTANT** that you use the __**Large Long** Terminal to connect to the Battery__ and the __**Large Short** Terminal to connect to the Starter Motor__. If the Large Terminals of your solenoid are not one Long & one Short, use a multimeter or test light to bench test which Large Terminal has some continuity to the Small Terminal. Whichever Large Terminal has some continuity to the Small Terminal is the one that is connected to the Internal PULL-IN Coil and is the one to be connected to the Starter Motor.
  
-If the large terminal connections are swapped, with the battery cable connected to the output starter terminal of the solenoid,\\ +If the large terminal connections are swapped, with the battery cable connected to the output starter terminal of the solenoid, then the internal windings will be constantly conducting current. \\
-·· then the internal windings will be constantly conducting current. \\+
 That current isn't strong enough to actually pull in the plunger but the current flow is enough to make the solenoid get really hot. \\ That current isn't strong enough to actually pull in the plunger but the current flow is enough to make the solenoid get really hot. \\
-If left this way, and not disconnected,​ it will eventually burn out either/both the PULL-IN windings and the HOLD-IN windings\\ +If left this way, and not disconnected,​ it will eventually burn out either/both the PULL-IN windings and the HOLD-IN windings because they are wound together inside the solenoid.\\
-·· because they are wound together inside the solenoid.\\+
 So you don't want to hook up the battery to the terminal used for the starter. \\ So you don't want to hook up the battery to the terminal used for the starter. \\
 The solenoid will still work at first, but left connected it will burn out either or both of the windings because the windings are constantly conducting. \\ The solenoid will still work at first, but left connected it will burn out either or both of the windings because the windings are constantly conducting. \\
-Using an ohm meter would give really confusing readings because you'd see continuity to both case ground and the starter terminal\\ +Using an ohm meter would give really confusing readings because you'd see continuity to both case ground and the starter terminal from the solenoid windings connection.
-·· from the solenoid windings connection.+
  
 67 and Up XLH Starter solenoid (71469-65) \\ 67 and Up XLH Starter solenoid (71469-65) \\