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Jim Adney wrote: >I think some early Bosch injectors came with no tips, then they came with black >tips, and finally they came with yellow tips. In general, the tip color matches >the color of the molded plastic on the inlet end. > > > Ok, of my sampling of 12 injectors: 4 in the car: Yellow inlets, black body, black tips. Bosch and VW part number and logo molded on the sides of the inlet. Presumably these are original. No evidence of these having been replaced in the vehicle's documented history. 4 NOS Yellow inlets, black body, yellow tips. Inlets have rubber hose crimped on (even though never used, if I were to use these I'd likely replace the inlet hoses anyway). Bosch logo and part number ending in 007 molded on inlet. These are stored in their NOS plastic bags, inside ziplock backs with silica dessicant, and their protective caps attached, and are wrapped in protective foam. 4 questionable spares Yellow inlets, black body, 3 of 4 have yellow tips that are hard to remove and haven't pulled them off, 1 has a black tip that slides off with some coaxing. I now see what the design of this tip is like, and feel confident that the cracked tip is merely cosmetic. All 4 have the Bosch logo and part number. 2 have very rusty bodies and were likely exposed to weather, and thus are highly questionable. Crimped on hoses have been removed by me. The other 2 look no worse than the ones in the car, but may have internal corrosion. Will store the two rustys and the two others in kerosene separately so there's no further rust contamination of the better looking two. The small o-rings in my car were fairly squashed- I felt a little better using new o-rings- and the big o rings were a little hard. At any rate, they're so cheap I felt it good insurance to change them anyway. The o-rings that came off the rusty injectors were as hard as bakelite! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~