Well, the deed is done.

They're installed and everything seems to be working properly.

I can definitely tell there is more power now and the engine sounds different.

It still seems to have a bit of a miss occasionally at idle but I won't know for sure how much of an improvement the injectors are for about 200 miles or so.

It usually takes me that long for the injection system to sort itself out on this car after I have fiddled with it.

Now, I really question the value of the plastic collars around the base of the injectors.

The ones on mine were COMPLETELY degraded to the point of serving only to provide debris to fall into the prechamber.

The front three managed to contain all the sand, dirt and oil from a life on a cattle ranch provided by the previous owner in very close proximity to the prechamber opening.

I literally had to break them up as best I could and position a vacuum cleaner at the base of the injector as I removed them.

They were only a hazard for contamination of the engine as far as I can tell.

The back two were already broken off except for the part that was lower on the injector.

One of my heat shields on the back was even showing a little RUST.

Since these plastic collars were in this condition would any of you think it's reasonable to assume these are the original injectors?

I haven't tested the old ones for functionality yet.

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1993 W124 300D
-297K on the clock as I type this.