quote:
Originally posted by rwmastel
I got two of my injectors out to swap them in testing. They are Bosch DC8C45R1. I will probably send them to be cleaned, but they are apparently not my immidiate problem.
I called Gus at Pacific Fuel Injection and he said they can be cleaned with an ultrasonic treatment. He also said the "old ones" are NLA, but the "new ones" would work fine with my 230SL Injection Pump.
Rodd
Powell, Ohio, USA
1966 230SL, Euro, Auto, Leather, both tops
1994 E420
Rodd et al,
From what I understand and researched when I did my system was that the balance between the injectors is important; there is a tolerance +/- in fuel flow that should be maintained for proper and uniform operation across all the injectors. That's one reason why they should be cleaned
as a group and tested
as a group to ensure that this tolerance is maintained. One thing the "cleaners" should have is a standard. I don't know if Bosch publishes it or not. There's also a spray pattern that should be fairly uniform from injector to injector. What the cleaning is supposed to do of course is to remove everything from the injector that doesn't belong there which would impede or alter the fuel flow or delivery. I would imagine one could save a bit of money by having the injectors cleaned. We may think our injectors are expensive, but electronic ones have a solenoid and they are probably twice the price.
When I got my car, I spoke with Hans at H&R; Bruce Adams of SL, Bud's Benz; Hatch & Sons; Paul Russel, and Dave Payne who did the restoration. ALL of these guys said the same thing regarding the running of the car, almost verbatim "It hasn't been sitting long, has it?" to which my reply was, "Well, not too long--just since 1985". They were all concerned about the fuel system, and of course having sat for 14 years, it was useless.
Hans tested my injectors and suggested disposing of them. :evil: I think they were beyond salvation. Let's hope yours are much better!
Michael Salemi
1969 280SL
Signal Red w/Black Leather
Restored
