F3 power question

rkc9700

Member

have gleaner F3 turbo 4 cyl of course. at times we loose rpms, wide open sometimes it runs 100 t0 200 rpm slower than other times. also when under a load as heavy tough soybeans , it pulls down to maybe 2150 rpm. lines , bowl , filter and screen are clean, could the governor be going bad in the pump? shouldn't it respond to load and keep rpms up?
thanks for any ideas
 
Make sure your fuel supply line is clear. Pull the filter off coming from tank and see your fuel flow. Compressed air forced into the line back to the tank usually will clean the black alge build up out of the line.
 
If fuel supply to the injection pump is OK then yes, it may be the weight retainer ring failing inside the injection pump. Had one in for repair from an F3 this summer for the same trouble.
 
If the combine pump is like most I see three to four hundred will cover the complete teardown, repair, test, and return. If the pumps you have off engine have not been in use one year or more I doubt they will work, parts inside will most likely be stuck from setting with old fuel. If they last ran with test oil inside they should be OK though. Might be better to repair one of those pumps, then swap it on engine to help save time..
 

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