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MP8-425E


bigfoot18
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I'm getting ready to change my first injector cups on an MP8. Any pointers?

I've done several on Cat 3100 and 3400 engines.

Just got the tooling. Looks like it works the same. No service manual of course.

Any help would be great!

Been a Cat dealer Field Service Tech on heavy equipment  for many years. Now having to do some truck repair on Cummins and Mack. Learning on the fly with no books!

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Use new injector hold down bolts and inspect the injectors closely or you will be doing it over soon. There are lots of steps . Get and use the graphit paste like it says. The inector now ony uses  the top o-ring.  Take your time and you will be OK. We have had a few customers buy the tools and try it themselves with mixed results. 

Sleeve replacment.pdf

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