LOCK-N-STITCH Inc.'s proprietary, patented mechanical crack repair process "metal stitching" allows us to permanantly repair a crack or blow-out hole without welding. The cracked metal is replaced with special metal stitching pins that we install by drilling and tapping to draw the sides of the crack together.
How do you fix a crack in metal?
https://www.youtube.com/watch?v=tsSQiJgB5P0
What is engine stitching?
Most cast iron engine block repairs are done using metal stitching or pinning. These pinning kits use a bolt of the same material as the head or block to repair small and large cracks in cast iron cylinder heads and blocks.
How do you lock and stitch?
https://www.youtube.com/watch?v=XUgwtN29Rlw
How do you fix cracked metal without welding?
Another effective way the cracks can be fixed without welding is brazing. Unlike the traditional welding technique used to repair metal items, brazing uses minimal heat to fix your cast iron pieces. This technique is commonly used to correct cracks on cast iron items.Jan 7, 2022
Can metal be repaired?
Today's epoxies can bond to the metal and once cured, create a permanent repair nearly as strong as the metal to which it is bonded. You cannot use just any epoxy to create a permanent repair on metal. It must be made of particles of the metal that you repairing.
How is metal stitching done?
Groups of holes are drilled across the line of fracture to the tool depth of the casting. The holes are then joined to conform to the shape of the Metalock Keys. The keys are inserted in the apertures. Holes are then drilled along the line of the fracture.
How do stitching pins work?
Stitching pins can repair castings that are between 1/8-inch thick up to four inches thick. As the stitching pin is torqued, a radial drawing force is created, pulling the two sides of the joint together. The sealing mechanism of the stitching pin is complex and has many metal-to-metal contact surfaces.
How do you fix a cracked engine block?
https://www.youtube.com/watch?v=1UFY33P2E1U
What is the best way to fix a crack in cast iron?
First, buy epoxy putties such as Quick Steel or JB Weld at your local hardware store. These two types of epoxies will serve as glue and will adhere to cast iron and fill the crack with a safe seal. Using 80-grit sandpaper, sand the cast iron to remove any paint and rust that might be covering the crack.Jan 7, 2022