Thread Repair Kit with 8MM Black Oxide Inserts For Exhaust Manifold Bolts And More

The ProMAXX Thread Repair Kit restores stripped or damaged 8mm x 1.25mm threads. Unlike spring-type inserts, which may fail under extreme temperatures; our kit is designed with Black Oxide inserts that are stronger than the threads that they replace. More holding power, extreme heat resistance, resulting in a better solution for damaged threads.

This kit is compatible with all of our 200 / 300 series providing the technician with the ability not only to extract a damaged bolt but also restore the threads to factory new condition. While this kit is compatible with our kits, the Thread Repair Kit can also be used by itself.

Engineered to fix problems caused by previous repair attempts as well. The kit includes precision high-quality tooling, a ProBushing, ProDrill Gold tooling bits, tap, and four 8 mm x 1.25 inserts.

Cylinder head threads used for mounting exhaust manifolds on 4.6L, 5.4L, and 6.8L engines are losing their ability to meet Ford torque specs following a repair. This is due to repetitive Exhaust Manifold Repairs (EMRs) made throughout the lifecycle of the engine. Spring-type inserts are a temporary fix and rely on the integrity of the thread for their holding power.

To support our network of EMR clients, ProMAXX® Tool designed and manufactured solid steel inserts that are stronger than the aluminum heads they restore. These inserts exceed Ford torque specs for the manifold. Check out the article and/or video our Founder and President, Jeffrey Del Rossa authored to support customers like you.

Key Success Drivers

• Easily repair threads to factory new
• Precision machine-shop grade tooling
• Solid-steel black-oxide coated inserts
• Made in the U.S.A

Kit Includes

• ProDrill Gold Tooling Bit
• ProBushing
• ProTap
• 4-Pack Black Oxide Coated ProSert

Thread Repair Kit User Guide Info

Thread Repair Kit

Before you begin, be sure to wear OSHA approved safety glasses.

DRILL: Screw the included ProBushing into the hole in the ProPlate overtop of the damaged bolt hole. Drill to adequate depth using drill supplied.

TAP: Remove the ProPlate from the engine head. Using shop air, blow the hole clear of debris. Then, position the ProTap into the top of the machined hole. Turn the ProTap clockwise one full rotation (you will feel resistance on the tap as you turn it – never force the tap). Reverse your ratchet and turn the tap counter-clockwise ½ a rotation. Using shop air and eye protection, blow down each of the four tap flutes clearing debris. Repeat this process until the tap stops at the bottom of the hole.

INSTALL:

• Screw the insert onto the male threads of the insert tool.
• Apply thread locking fluid to the threads of the insert (optional, PMXTLF014 Thread Locking Fluid).
• Position the insert and tool squarely over the tapped hole.
• Rotate the insert tool, exerting slight pressure against the work until the insert is engaged in the tapped hole. Continue to rotate the tool until the insert is located 1/4 to 1/2 turn below the work surface. Remove the insert tool by rotating counter-clockwise.

Thread Repair Kit User Guide PDF

Part Numbers: PMXTRK345KIT, PMXTRK345, TRK345, TRK345KIT