How To Repair Stripped Threads In Aluminum Head With Metal Insert

How to Repair an Aluminum Thread

by C.L. Rease

nuts and bolts prototype by Darren White from Fotolia.com

Aluminum automotive parts are lightweight and durable. Threads cutting into aluminum are decumbent to stripping. This tendency results in the need to install new threads to reinstall an accessory to an aluminum office. Replacement thread inserts are made of steel, offer a stronger pulling strength than aluminum threads and are less probable to strip when y'all install or remove a bolt from the installed thread insert. The threads replaced with a thread insert will remain the size of the original stripped aluminum threads, allowing yous to reuse the accessories-supplied fasteners.

Step 1

Secure the drill bit in the chuck of a three/8-inch drill motor. Select a drill flake size specified by the hole sizing chart from a drill bit set. Refer to the thread repair kit hole sizing nautical chart to make up one's mind the hole size needed to install the thread insert.

Step ii

Use cut fluid to the drill bit and the hole containing the damaged aluminum threads.

Step iii

Drill out the damaged threads with the drill fleck installed in the 3/8-inch drill motor. Utilize cutting fluid throughout the drilling procedure to keep the drill bit from bottleneck with aluminum.

Pace 4

Tap new threads into the drilled hole with the tap shown on hole sizing chart and tee-handle tap wrench supplied with the thread insert repair kit. Apply cutting fluid to the cutting threads of the tap to produce clean threads in the aluminum while yous plow the tee-handle tap wrench clockwise.

Stride 5

Plow the tee-handle tap wrench counter-clockwise to remove the tap from the now threaded pigsty.

Pace half dozen

Thread a thread insert onto the end of the installation tool supplied with your thread repair kit.

Stride 7

Prepare the terminate of the thread insert into the threaded aluminum hole. Turn the installation tool clockwise to thread the insert into the hole. Finish turning the installation tool when the thread insert is affluent with the top of the threaded hole.

Step 8

Remove the installation tool from the installed thread insert.

Slide a dial into the installed thread insert. Strike the back of the dial with a hammer to remove the tang from the bottom of the thread insert.

References

Things You'll Demand

• Thread Insert repair kit
• Drill bit set
• 3/8-inch drill motor
• Cutting fluid
• Punch
• Hammer

Warnings

• Wear rubber spectacles when drilling damaged threads from aluminum.

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Source: https://itstillruns.com/repair-aluminum-thread-6766779.html

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