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Fuel injector retaining nut...
| Greg |
Hello, does anyone know if Caterpillar makes a special socket to fit the injector retaining nuts on the combustion chambers on a 955C traxcavator, engine model #12A 781? I think the year is betweeen 1955 and 1959. The retaining nut on this machine is circular, not hex and it has serated or knurled edges. A traditional socket doesn't fit it. We've tried just about everything, but can't get the retainer out so we can remove the combustion chambers to replace the o-rings and washers. We have the tool to remove the combustion chamber itself, but can't get the circular nut off to get that far. Thanks for your help!
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| catmech |
yes they do have a special socket for that nut. do not know the part number, but the 3208 injection pump uses the same socket for the injection pump hold down nuts.
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| Greg |
Thanks for the response! So many people have told me that this retainer has to be a 1" hex and takes a 1" 6 pt socket to remove. I didn't think I was going crazy! At least now I know that I need to look for this special socket and quit trying to make something else work before I get in trouble! If you happen to find out the part#, please let me know. Thanks again!
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| catmech |
found catalog on cat tools, they call it a wrench 8s2243 is the number.
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| Greg |
THANKS TREMENDOUSLY!!! Your help is VERY much appreciated! This will save me alot of time trying to find this tool. Hats off to you and thank you again!
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