| Engine Block Repair |
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Most cast iron engine block repairs are done using metal stitching or pinning.
Welding an engine block can be difficult due to high temperatures and special
proceedures implemented by proffesional welders.
These stitching kits utilize various methods to achieve the same thing. Some
use pins or bolts made from copper or zinc where others use dowels or tapered
plugs. A technician would use a hammer or torque wrench, or drill to wedge the
item into the crack. Some kits include a glue or epoxy to finish the bond.
The method draws the two sides together creating an almost undetectable
repair. Some guys will tell you just about anything they can pound into place will
do the job but its not quite that easy. This method costs alot less than welding
and is a lot easier. If the crack is easy to get to, say on the front of a head it may
only take a few minutes.
Welding a block can exasperate the situation and is usually used for holes not
cracks in the block anyways. This is an excepted form of repair but as
mentioned earlier left for a professional welder.