D.I.Y. Injector Service
I think this is a good idea and thread .
Ignore those who don't understand the way it works, either you get a proper spray pattern and pop pressure or not .
The you tube video clearly shows an off set spray cone and the higher pop point is a serious thing .
I'd suggest trying again and see what you get, once the pop pressures are close you'll be amazed at how much smoother the engine runs and smokes less too (it shouldn't smoke at all) .
My first OM617 was a 1979 300CD, no turbo and the injectors were all over the map, a nice guy who's long gone took them and cleaned the clogged nozzles with dental root canal tools ( !?!?) so they sprayed like tiny fire hoses but all at the same pressure and interestingly enough the car never smoked and ran smooth as silk and not as slowly as other NA OM617's Ive ridden in either...
I couldn't stop thinking about the improper spray pattern (you need a perfectly conical fog of fuel at the *precise* pop pressure) so as soon as I could I bought a set of rebuilt injectors but I did run the car that way for months, commuting and road rallying with now complaints .
Lapping precision parts is a long forgotten process because it takes time and effort but I think this is worthwhile .
I have some used, not junk injectors if you'd like to try again, next time keep the pintles and nozzles matched and only clean the rest in bulk batches .
Harbor Fright Tools sells nifty ultrasonic cleaners that work very well indeed, maybe try one here ? .
__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father
I did then what I knew how to do ~ now that I know better I do better
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