Hello everyone, I am wondering about what affects increasing the governed RPM will have on a small engine. To be more specific, I have a Harbor Freight water pump that is powered by a Predator 79CC 4 cycle engine that I use to pump water out of my crawl space and backyard when it rains as my house is on very low land and I live in a swamp. I often have 6-8+ inches of standing water in my backyard after it rains that I am pumping out as my house and garage floods if I don't.
So as you may imagine, pumping hundreds of gallons of water out of a flooded backyard takes quite a bit of time and I am not a patient person, so I removed the screw on the engine's throttle lever that prevents it from being moved to the wide open position, and the pump now moves significantly more water, allowing me to finish pumping and get on with my life a lot sooner.
I have been running the pump wide open the last few times I used it and so far everything is still going good, and I have put several hours on it this way. No odd noises or no oil consumption or anything else disturbing other then the muffler glows red after running it wide open for a few minutes, which isn't too surprising.
So my question is what risks am I taking by running the engine wide open instead of at the stock maximum throttle setting? Will the engine simply require maintenance sooner and experience a little more wear, or is it likely to catastrophically fail in the near future from running at a higher RPM than stock? And if so, which parts of the engine will suffer?
Thank you very much in advance!
So as you may imagine, pumping hundreds of gallons of water out of a flooded backyard takes quite a bit of time and I am not a patient person, so I removed the screw on the engine's throttle lever that prevents it from being moved to the wide open position, and the pump now moves significantly more water, allowing me to finish pumping and get on with my life a lot sooner.
I have been running the pump wide open the last few times I used it and so far everything is still going good, and I have put several hours on it this way. No odd noises or no oil consumption or anything else disturbing other then the muffler glows red after running it wide open for a few minutes, which isn't too surprising.
So my question is what risks am I taking by running the engine wide open instead of at the stock maximum throttle setting? Will the engine simply require maintenance sooner and experience a little more wear, or is it likely to catastrophically fail in the near future from running at a higher RPM than stock? And if so, which parts of the engine will suffer?
Thank you very much in advance!