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  1. K

    Cat 303cr injection issue

    Serial number on machine is xdma01123x. I just changed every possible filter and fluids with all cat products. So air filter is out of question. I just bought machine, it apparently had a rebuilt motor and from my research injection timing gets thrown off when these are rebuilt. My question I...
  2. K

    Cat 303cr injection issue

    Hey guys I have a cat 303cr and it is blowing black smoke whenever I idle it up and use functions. When resting at idle it doesn’t smoke. Looking for input on how to adjust injection pump. Any help is appreciated!!
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