ProMAXX Tool has released its new Cylinder Head Repair Kit, which includes the new Blind ProSert. The kit allows technicians to fix an incorrect repair where an attempt to drill out a broken exhaust manifold bolt has penetrated the cylinder head.
“After fully extracting the damaged bolt, a technician uses a machine-shop-grade tooling tap to prepare the hole,” according to ProMAXX officials. “Then, the Blind ProSert, with a light coat of liquid thread lock, is inserted into the hole, completing a repair that will remain leak free.”
“Drilling free hand or with an inferior tool increases the risk of damaging the head,” says Jeffrey Del Rossa, founder and president of ProMAXX. “If a tech drilled off-center, into the threads or through the cylinder head, their only choice used to be to remove and replace the entire head. This could take up to 15 hours or more. Now, thanks to the Cylinder Head Repair Kit and gold tooling bits, ProTap and Blind ProSerts, techs will make a stronger-than-factory repair in about 15 minutes.”
The Blind ProSert fits into any eight-millimeter bolt hole used by most automotive manufacturers, including Ford, BMW, General Motors, Mercedes-Benz, Audi and many others.
The Blind ProSerts have hardened steel and black-oxide-coated for corrosion resistance. They are available individually, in packs of three and six. The kit comes complete with a precision drill bit, tap, locking fluid, ProSerts and insert tool, all made in the United States of America.