Posted on by

ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 006-067   Fuel Rail High Pressure Fitting

Table of Contents

Initial Check
Remove
Install

Initial Check

 TOC

 WARNING 

The fuel pump, high-pressure fuel lines, and fuel rail contain very high-pressure fuel. Do not loosen any fittings while the engine is running. Wait at least 10 minutes after shutting down the engine before loosening any fittings in the high-pressure fuel system to allow pressure to decrease to a lower level.

Operate the engine and check for external leaks.

SMALL | MEDIUM | LARGE

Remove

 TOC

Remove the high-pressure fitting only if a leak is detected.

SMALL | MEDIUM | LARGE
   

Install

 TOC

Flush the outlet fitting using contact cleaner.

Apply Lubriplate™ to the high-pressure fitting threads.

Install the high-pressure fitting.

Torque Value:  100  n.m  [74 ft-lb]

Reinstall the high-pressure fuel line. Refer to Procedure 006-051.

Operate the engine and check for leaks. If a leak occurs after replacing the fitting, replace the rail.

SMALL | MEDIUM | LARGE
Last Modified:  23-Apr-2010
Avatar photo

Published by Jack

Hello, I'm Jack, a diesel engine fan and a blogger. I write about how to fix and improve diesel engines, from cars to trucks to generators. I also review the newest models and innovations in the diesel market. If you are interested in learning more about diesel engines, check out my blog and leave your feedback.