Kiki Injection Pump/Runaway Engine

rich3604 · Jun 24, 2014

My komatsu 6cyl inline with a kiki inline pump has been sitting for about 5 years. When I cranked it, the throttle was stuck in the wide open mode. The pedal will return back and forth. The fuel shut off lever works, but it continues to run away. Does anyone have a diagram of the breakdown of the kiki pump? I would like to simply get the part free, but do not want to destroy and/or lose critical parts when dismantling the pump. Can anyone give me any advice or a diagram? I need to be able to get to the governor and plunger rack to easily free it without problems. I had to disconnect the fuel line at the filter to get engine to stop.

Dieseltech · Jun 24, 2014

Does it have a two bolt side cover for tappet access, if so remove it and make sure each plunger moves up and down freely. Just one that's stuck will cause the rack to stick. Beating on the rack just breaks the segment teeth, all plungers must move freely.

rich3604 · Jun 24, 2014

Thank you so much for telling me where to look. It does have the two bolt side cover. Tomorrow, I will look again and spin the motor over to see if they are moving freely. Thank you so much for the information. Any other advice would be much appreciated.

cshess · Jun 24, 2014

As Dieseltech said you can do his recomendation.You
can also remove the cap on front of pump at top an
with fingers try to free up rack.Also GOOGLE IN
KIKI INJECTION PUMP an there is a lot of
diagrams an info on those pumps

Kiki Injection Pump/Runaway Engine

rich3604

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Dieseltech

Well-known Member

rich3604

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cshess

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