
How To Properly Install A Helicoil
Photo pizap descargar gratis. Follow these Helicoil installation tips to avoid any problems: 1 If your threads need repair, don’t despair. Heli-Coil kits are available at most hardware and auto parts stores and typically contain a drill bit, oversize tap, wire inserts, and the installation tool, which also doubles as a holder for the tap.
Ive read, seen and heard of guys being skidish about Helicoils so here we go on the ins and outs of thier wonderful use. If youve got a stripped or pulled threaded hole this is the key of getting it back together without having to replace the said part.
Just simply go and buy you a Helicoil or Powercoil kit and get it fixed. Just simply drill out the damaged threads with the supplied/recommended size drill bit. After you clean al of the chips out of the hole and clean it out with brakeclean take the tap that came in the kit to cut the threads for the Helicoil, be sure to use Tapmagic or some other tapping fluid(even some WD40 will work) to make cleaner cut threads unless your tapping cast iron then do it dry: Once you tap the hole all the way to the bottom clean the chips out again with some brakeclean: Take your Helicoil install tool and an insert and follow the instructions of how to install it. Once you start to thread the insert into the hole take light pressure to guide it into the threads and twist it into position all the way flush with the top of the hole: Once its all the way in make another half turn to drop the insert just below the surface: Now, be sure to take the tool or a screwdriver to break the tab off the bottom of the insert and remove the broke off tab. BTW, if you are repairing a sparkplug hole or something you dont want a chance for the tab to fall into just use some needlenose pliers.
Stripped and broken threads are a fact of life in auto repair. Even if the threads are damaged beyond a simple re-tap, the mounting hole can still be fixed and reused. Helicoil inserts allow you to replenish the threads, even if the threads are completely removed from the bolt hole, a common occurrence with aluminium threads. The procedure for installing a Helicoil is the same for all hole diameters, and everything you need to perform the thread repair is included in a Helicoil kit. Remove the bolt from the stripped threads.
If there is a broken bolt remaining in the hole, use a bolt extractor to remove the bolt from the threaded mounting hole. Place the Helicoil recommended drill bit for the hole size being repaired into the drill. Drill the hole deep enough to accommodate the Helicoil insert and the bolt that is going to be threaded into the hole. Tap the drilled hole with the tap specified in the Helicoil kit.
Keep the tap straight with the hole. Turn the tap in a clockwise motion to thread the hole. Turn the tap until it binds, back the tap up a 1/4 turn; continue to thread the hole in a clockwise direction. Run the tap to the bottom of the hole.
Do not try to exert heavy pressure on the tap. Carbide taps are brittle and can easily be broken off in the hole. Thread the Helicoil on the mandrel of the supplied Helicoil installation tool. Liberally apply thread lock to the Helicoil insert.
Place the Helicoil insert into the hole. Thread the Helicoil insert into the hole until it rests at least a 1/4 turn below the surface of the metal having the stripped threads repaired. Remove the insert tool by turning it counterclockwise. Insert the tang break-off tool into the repaired hole. Hit the end of the tang tool with a hammer to snap off the tang. If you are repairing the threads in a large hole, reach into the hole with a pair of needle nose pliers and grasp the tang.
Twist the tang back and forth until it breaks free of the Helicoil insert. Allow the thread lock to set-up before re-installing a bolt into the repaired hole.