Engine Idle

[thermodynediesel]

Hi,

I was wondering why the engine (673) dies while idling,The rpm's slowly drop and the motor will die. But some times

it will idle down to the point you think it is going to die and its rpm's come back up,but when it dose die,it will fire right back up?

it wont do it every time it is run. Any thoughts. Thanks

[Rob]

Hi,

I was wondering why the engine (673) dies while idling,The rpm's slowly drop and the motor will die. But some times

it will idle down to the point you think it is going to die and its rpm's come back up,but when it dose die,it will fire right back up?

it wont do it every time it is run. Any thoughts. Thanks

Most likely the governor is needing work if you do not have a problem with power. The pins and bushings that support the flyweights, along with the springs wear with time. You may be able to set the idle a little higher than it is right now to keep it running.

I've had a couple that idled erratically and had both governors rebuilt to repair the problem. One was surging about 200 rpm, (but never died), the other would not idle without your foot on the pedal unless the idle screw was about 800 rpm. In both cases the pins and bushings mentioned earlier were well worn.

Only bad thing is that some of those parts are getting scarce. A good pump shop will make the needed parts from stock materials.

Good luck.

Rob

[thermodynediesel]

Thanks for the reply,I may need to look into have some work done on it if keeps giving me trouble. Thanks