ISL 8.9 Valve & Jake Brake Adjustment: Specs & Tools
The 2004 Cummins ISL 8.9 in my rig is 20 years old and starting to run rough — time for valve adjustments or a full rebuild? What are the intake and exhaust valve specs? I want to confirm the clearance measurements and also need the tool number to adjust the jake brake. Can anyone help me verify the correct specifications before I start this job? …more
