![]() Moreover, this step allows the surface of the stud to conform to the cutting edge of the bit, distributing the load evenly across the entire cutting edge, which is essential for cutting extremely hard surfaces and extending the life of the cutting tool.ĥ. This is the MOST CRITICAL step of this repair, creating precise alignment (a seat) for the tooling bit to stay on center and not follow the angular broken surface of the stud. While applying light pressure, activate your drill both on and off five times in one second intervals (ten times if utilizing an air ratchet). SET THE CUTTING EDGE: Important step to avoid drill bit breakage. (This will ensure the cutting edge is not damaged.) *Repeat this procedure for each sequential step in your applicationĤ. Insert the prepared ProDrill™ into the mounted ProBushing™ by slowly and manually turning the drill chuck until the ProDrill™ slips into the bushing and makes contact with the surface of the damaged stud. ![]() Apply one drop of ProLube™ (PPL001).ĪVOID USING PENETRATING OIL/SPRAY OR OTHER LUBRICANTS WHICH ELEVATE CUTTING EDGE TEMPERATURES CAUSING THE BIT TO BURN AND CEASE CUTTING.ģ. Using drill depth gauge, machined into the ProPlate™, set the proper depth of the bit and mark if necessary. Then insert the corresponding ProDrill™ machine grade tooling bit (included) into an air-powered, angled-style drill. Insert the ProBushing™ into the ProPlate™. Torque ProFasteners to a minimum of 20 FT-LBS.Ģ. ![]() Mount the ProPlate™ to the cylinder head using the included ProFasteners (PPF008375 or PPF008500) according to the enclosed cylinder head schematic. FORD 4.2 V6, 4.6L/5.4L V8, 6.8L V10 FIX BROKEN EXHAUST MANIFOLD STUD - ROCKYġ.
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