6 articles
Technical insights.
How common rail injectors are identified, tested and diagnosed. Written for the people who fit and service them, not for search engines — though they help there too.
-
How to cross-reference a diesel injector part number
A single injector carries at least two numbers — the manufacturer number and the OEM host number. Here is how they relate, and how to identify a part when the label is unreadable.
Read article -
What a flow test actually measures on a common rail injector
Dimensional inspection can pass a part that still runs badly. The flow test is what catches it — and what it captures is timing, not just volume.
Read article -
Six symptoms of a failing diesel injector, and what each one means
Not every injector fault presents the same way. The symptom usually points at which part of the injector is degrading.
Read article -
New versus remanufactured injectors: what the difference costs you
Both are legitimate products. The problem is that they are frequently sold as though they were interchangeable, and they are not.
Read article -
Why nozzle geometry determines spray quality
The spray holes in a diesel nozzle are smaller than a human hair. Their geometry decides how completely the fuel burns — and therefore emissions, economy and power.
Read article -
Storing and handling injectors without damaging them
Most premature injector failures we see are not manufacturing defects. They are contamination and corrosion introduced between delivery and fitting.
Read article