Re: Horsepower loss

Posted by K.B.-826 on March 28, 2007 at 22:24:34 from (66.188.221.148):

In Reply to: Horsepower loss posted by Bradford on March 28, 2007 at 19:26:39:

Doubt you'll see a loss of more than 5 hp without noticing other problems. Main thing is to make sure the throttle linkage and fuel shut-off cable are adjusted correctly. Look at the side of the injection pump. See the two arms? The lower one is connected to the shut-off cable. The position of this arm controls fuel delivery, further to the rear=less fuel. Make sure that the cable is adjusted so that when it is pushed in, the arm comes forward all of the way and contacts the little stop screw. The upper arm is attached to the throttle linkage. You'll see two stop screws, the front one is the low idle stop, and the rear one is the high idle stop. Make sure the linkage is adjusted so the upper arm contacts each stop screw fully before the throttle lever reaches the extreme low or high idle position. If the linkage is set too short and the arm does not contact the low idle stop, the engine will idle too fast, which will make it harder to shift into gear. If set to long, the engine will not reach full speed, and your horsepower will suffer. Our old 826 was dyno'ed with about 7900 hours on the engine, it would still do 107, thats with an M&W turbo. By the way, 826 is 92 hp at the PTO, about 80 at the drawbar.

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