Tech. & Faults Corner

Installation Instructions
Problems with injectors immediately after installation are almost always due to improper installation which can ruin the o-rings. Because of the position of the fuel injectors in relation to the fuel rail, extreme care should be taken during installation so as not to damage the o-ring seals. Always inspect the o-rings for damage before considering the injector itself to be defective.

Just prior to installation we recommend the use of Palmolive soap to lubricate the o-rings. Petroleum based products have chemicals that get absorbed in the o-rings after a long period of time. The soap leaves no residue.

Use a rocking motion to install the o-ring in to the fuel rail and intake manifold. Never twist-in or “screw-in” the injector. This may cause scoring or cutting of the o-ring.

We also recommend that the fuel lines and fuel rails be flushed prior to putting in new injectors. The contaminants in the lines can collect in the tiny filter inside the injector. This can cause problems down the road. Prior to installation inspect any inline fuel filter that may be dirty and cause contamination of the new parts.

If your vehicle has been stored or sat unstarted for more than several months there are many other safeguards you should take into account before replacing fuel injectors and starting the engine. Consulting our tech dept. with any questions is advised.

If you have any questions on installation please e-mail.

The most important cause for fuel injector failure or damage is a deep heat soak cycle after the engine is turned off. The remaining fuel inside the injector evaporates, leaving a residual coating and fuel deposits. As these deposits build up, it slowly chokes off the fuel volume at the injector nozzle, and continues to form inside the injector body, until the injector is clogged. Fuel volume is reduced, spray pattern is deformed and atomization quality diminishes. Sometimes, deposits can result in injector leakage or sluggish operation which can cause rich running conditions. Various driveability and emission problems can result from this condition.

Diesel Parts Centre has the latest Electronic diagnostic equipments. Our team works extensively providing service for all our existing Fuel Injection workshops as well as for the transport and fleet owners.

Our states of the art diagnostic equipment identifies all running faults, high emissions & electrical faults.