Re: 400d engine speed

Posted by diesel dug on August 11, 2005 at 19:54:08 from (216.16.17.40):

In Reply to: 400d engine speed posted by BULLDOG on August 11, 2005 at 09:49:14:

Hi , I can help with this. Under the oil filler hole on the injector pump (I believe 2 bolts hold this on)there are a couple of small screws. The one closest to the outside is the RPM screw. turn screw in for more RPM and out for less. Turn small amounts 1/4 turn at a time. Behind this screw or closer to the engine and still thru the oil filler hole is another screw with a 7/16 head and jam nut. Turn clockwise one turn for more horse power. I have done this for tractor pulling with these old beasts and it can really liven them up.

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