GM TPI system

[Bruce Bowling]

~ 
~ 
~      
~      For anyone out there
~      
~      How do you clean the injectors on the GM TPI systems (85 system).  I 
~      presume you have to pull them out of the fuel rail ?
~      
~      If so, do you have to pull the whole top apart to get the fuel rail 
~      off the manifold bosses ?
~      
~      I know the injectors are held in by a sort of 1/3 turn locking clip, 
~      when this is undone do you just pull out the injectors (they seem to 
~      be in very tightly) ?
~      
~      Any help appreciated
~      
~      Dan        dzorde at aesprodata.com.au
~ 
You can go to shops who will clean the injectors on the car, but what
I have heard this has limited success.  It is best to remove them,
and on a 85 GM removing the fuel rail is real easy (just be sure
to replace the o-rings afterwards).

If you are electronically-inclined, you can make a fuel injector
energizer with a 555 timer and a driver transistor (I made one
from a basic Stamp).  If not, you can get the energizer device
from J.C.Whitneys.

- Bruce


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               Bruce A. Bowling
  Staff Scientist - Instrumentation and Controls
 The Continuous Electron Beam Accelerator Facility
    12000 Jefferson Ave - Newport News, VA 23602
                 (804) 249-7240
                bowling at cebaf.gov  
        http://devserve.cebaf.gov/~bowling
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