FUEL INJECTOR CLEANING/SERVICE PHOTOS
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The following series of photos were taken on Friday August 20, 2004. The injectors were from a 1985 Jaguar XJS with 62,000 mileage. The injectors were purchased from a private seller over the Internet. No other details available on the vehicle. The XJS is a V12 engine, so the injectors were tested in two groups of 6 injectors...(group A and B). The text to the left of each photo describes the written facts, while the photos show the visual aspect. The photography was done by me personally, and is unretouched. After the initial precleaning pattern test and precleaning flow volume test, I was very skeptical that the injectors were worthwhile. However, I continued with the photos, ran a 30 minute cleaning cycle on each group, and retested. Judge the results for yourself.
GROUP A (1 thur 6)
PRECLEANING PATTERN TEST
All injectors failed the pattern test, except injector 5 which was fair. Note the variation in the pattern spray directions and spray atomization.
GROUP A (1 thru 6)
POST CLEANING PATTERN TEST
All injectors now have the exact same pattern direction and proper atomization. The "apparent" short pattern spray tail in injector 6 is due to photo quality.
GROUP A (1 thur 6)
PRECLEANING FLOW VOLUME TEST (60 seconds @ 3 bars)
#1...57 ml
#2...63.5 ml
#3...63.5 ml
#4...91 ml
#5...101 ml
#6...79.5 ml
Numbering is from left to right.
GROUP A (1 thru 6)
POST CLEANING FLOW VOLUME TEST (60 seconds @ 3 bars)
#1...104 ml
#2...104.5 ml
#3...105 ml
#4...104.5 ml
#5...104.5 ml
#6...105 ml
GROUP B ( 7 thru 12)
PRECLEANING PATTERN TEST
Again, note the variation clearly visible in the pattern direction and atomization. 1 and 3 were fairly good, 2 was fair, while 4, 5 and 6 failed.
GROUP B (7 thru 12)
POST CLEANING PATTERN TEST
All injectors now have matching spray pattern and proper atomization.
GROUP B (7 thru 12)
PRECLEANING FLOW VOLUME TEST ( 60 seconds @ 3 bars)
#1...98.5 ml
#2...103 ml
#3...101 ml
#4...96.5 ml
#5...69.5 ml
#6...68 ml
GROUP B (7 thru 12)
POST CLEANING FLOW VOLUME TEST (60 seconds @ 3 bars)
#1...104.5 ml
#2...106.5 ml
#3...105 ml
#4...105 ml
#5...105.5 ml
#6...105 ml
There is nothing else to say. The photos say it all.