Injectors the easy way

[cougar]

All it took was a nice day and no distraction and I finally got my Bosch +40 injectors in.

Start with giving the area a good cleaning and blow dry with compressed air.
Starting with an 8mm wrench remove all the injection line clamps.
Next with a 10mm remove the return line banjo bolts and swing line out of the way.
Next with a 17mm remove the injection line nuts from the injectors.
Using your favorite penetrating oil squirt the injector retaining nuts.
With a 24mm deep socket, remove the retainer nuts and keep 2 for later.
Clean away any remains of seal ring from the injector and hole.
Squirt some more oil down around the injector.
Clean up and screw one of the retainer nuts back in a few turns.
Clean up an set the other retainer nut on top of it.
With a metric nut and washer purchased from an auto parts store,
Set the washer on top of the second retainer nut and screw the metric nut on the end of the injector.
As you tighten the nut down, it pulls the injector from the head.

I read about a lot of methods from vise grips to fancy slide hammers, but this was just the gnats.

[Begle1]

Or you can crank the engine to pop the injectors out.

[cougar]

Or you can crank the engine to pop the injectors out.

IMO, not worth the damage risk.

[BobS]

With a 24mm deep socket, remove the retainer nuts and keep 2 for later.

Just a passing question. How do you keep the injector body from spinning and wrecking the indexing location of the injector head bores? Normally you hold a wrench on the flats of the injector body while using a 24 mm box end wrench to loosen the injector retaining nut. This is per the Cummins service manual.

[cougar]

With a 24mm deep socket, remove the retainer nuts and keep 2 for later.

Just a passing question. How do you keep the injector body from spinning and wrecking the indexing location of the injector head bores? Normally you hold a wrench on the flats of the injector body while using a 24 mm box end wrench to loosen the injector retaining nut. This is per the Cummins service manual.

Unless your retaining nut is seriously rusted to the injector, once you brake the torque you can remove the nut with your fingers. The seal ring may give a little resistance though. If that is not the case then you will have to remove some other items in order to get a box wrench on it. In either case, a lot of penetrating oil is a good thing.

[Begle1]

Or you can crank the engine to pop the injectors out.

IMO, not worth the damage risk.

What damage risk? Either put a blanket over them so they don't fly out, or loosly thread the injector lines to the top of them after you remove the hold-down nuts. That'll keep them from turning into missiles.