Caterpillar Inc.
Leak detection tool

Abstract:

A leak detection tool for a double walled fuel rail system is provided. The tool includes a body having a first end and a second end distal with respect to the first end. The tool includes a first passage extending from the first end at least partially towards the second end. The tool includes a second passage axially aligned with and extending from the first passage towards the second end. The tool includes a seat defined at an intersection of the first passage and the second passage. The tool also includes a sealing element provided in association with the seat within the second passage. The tool further includes a spring element provided within the second passage and in contact with the sealing element. The first end is configured to block fluid communication between outer passages of adjacent portions of the double walled fuel rail system.