don't forget to source a 20% off coupon somewhere if you're going to a HFT store; they can be found in most automotive or men's type magazines.

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1983 300SD (daily driver)
1991 420SEL (work in progress)
1979 300SD (future replacement for 83 SD)

RIP:
1983 300SD (totalled)
1986 420SEL

Yes, the entire injector and its contents need to be cleaned for a complete job. Even after you ultrasonic clean it, you should blast it with compressed air. Keep in mind that one little spec of dirt can screw up the injector which will neccesitate a re-do.

yeah just clean all the injector internals while it's apart, there's only 4 or 5 pieces in there if i remember correctly

__________________
1983 300SD (daily driver)
1991 420SEL (work in progress)
1979 300SD (future replacement for 83 SD)

RIP:
1983 300SD (totalled)
1986 420SEL

Wow - well for 30 dollars you've either saved a lot of money or bought the wife a nice foot spar!

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

Thanks for the input.

I bought the cheap HARBOR FREIGHT TOOLS Ultrasonic Cleaner

Ultrasonic Cleaner - Save on Ultrasonic Cleaners at HFT

and this 6 Oz. Ultrasonic Cleaning Powder

6 Oz. Ultrasonic Cleaning Powder

The unit works OK since I only clean one injector at a time, to eliminate any possibility of mixing parts.

I change the fluid every cleaning cycle.
Each injector nozzle required at least three cycles.

The injector shells take many more cycles, even with extreme pre cleaning.

.

If you have a Diesel Nozzle/Pop Tester and are doing the work yourself cleaing the Nozzles is practical and one of the reasons to have a Nozzle/Pop Tester.

Because the Injector Nozzles often do not all wear at the same rate you are paying someone to do the Cleaning and the overall cost effectiveness for long term use could favor new Nozzles.

If you have a bunch of used Injectors If you have a Nozzle/Pop tester and the Ultrasonic Tank you can maybe find enough to make a good set.

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84 300D, 82 Volvo 244Gl Diesel