Back-To-Basics: Troubleshooting Rivet Installation

Rivets and rivet bonding are common attachment methods on today’s vehicles. Although rivet installation may be simple, it has unique challenges and issues that may need troubleshooting.

Common problems with rivet installation include:

  • Non-fitting rivet heads
  • Open countersinks
  • Loose set
  • Mandrel pull-thru or partial pull-thru
  • Bulges at the rivet connection
  • Bulges between the rivet connections

Tight panel fit-up is, as always, important to a successful repair. The rivet tool stroke or throw length can also cause problems with installation and impact the repair quality. If manual and some pneumatic tools are used, multiple compression attempts may be made. This can work harden the rivet or fastener, causing a potential issue.

The collision repair facility may be required to have specific tools if it is part of an OEM repair network. Self-piercing rivet (SPR) guns, blind rivet guns, or adaptors are commonly on their list. Any tool used must meet or exceed the OEM force requirements in the OEM service information or network requirements.

Many vehicle makers specify the rivet type, grip range, location, and number of rivets in their repair information. Whether structural or non-structural, making sure the correct rivets are used and properly installed with the correct tools is vital to a safe and proper repair.

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