Carbon monoxide is odorless, colorless, and can cause death if inhaled. But I am going to drain and change all this time. It's better than it needing rings!!! The pulse line must be rigid enough to avoid becoming damp. And the grommet that holds the breather in is broken and not sealing. The vibration of the engine will affect the pulsating flow of fuel and the regulated flow of fuel enabled by the pump will be affected. Anyone know why this may not be working and have any suggestions on how to fix it? Its just suspect that only one plug was nasty. The rubber grommet is replaceable, flush the breather with carb cleaner and blow it out.
Perhaps a bit less 'pulse', but out of the way of splash lubricant. Well it worked fine until the gas temp reached 135, then the fuel stopped flowing through the paper filter. According to the parts, lists the cover plates are the same. Instead - decided I would leave in on. I did replace the pump on mine, and the instructions that came with the pump made mention of how the access hole in the block was made determining some thing about the assembly technique. Idling the tractor is possible - but running it under load with the mower deck shows that there is simply not enough output to the carb - and under load she will run out of gas.
Not sure if I can get them on a Sunday. It makes more sense that the head gasket on the one side is leaking. Another solution is to open the port and inspect the cam with a fingertip. It runs great,,but it does put out quite a bit of smoke and small drops of this white oil. That Kohler sounds good too. A picture or two might also be useful. Round pumps are the more commonly used pumps and are used for large volumes of fuel feeding two carburetors.
Pumping action of pulse style pumps is created by oscillation of positive and negative pressures within crankcase. I use the Kohler style most often. But I have more time than money, so I think it is worth the effort. If it smokes a bunch,,,I will change the head gasket. I attached pic of my set-up. A stiff diaphragm will make it difficult to pump against a closed needle or air.
If there is no lobe, you can plug the hole with a non-operating pump, and use the barb fitting on a more protected area where it is not so likely to get oil logged. Fuel flows from one chamber to the other at one pulse and at the next pulse, fuel moves to the engine. And absolutely use a torque wrench when putting the head back on. If that is plugged,the pump won't work. There is something that some-what looks like a screen on the front of it and oil is bubbling out of it. If fuel flows from the vacuum fuel pump, than the pump is working.
If you can feel a little vacuum pressure it won't be much ,the vacuum is fine,and probably the pump is bad. I looked up the cover plate for both model numbers. Carburetor cleaners and solvents are extremely flammable. Remove the head bolts and the head should come off. Would hooking up a little electric pump just to trouble shoot it be out of the question? It goes then to the carburetor and is building up a white oily substance in carb and effecting it. The kit comes with new bolts, gasket, etc. Our online catalog has a large selection of Parts ready to ship direct to your door.
I am going to get a new hose,,and grommet now. I hope this is helpful. Your kind of service is exceptional! I work at the local golf course and we use this type pump for several applications. Remove your filter and see what happens. I have always removed the old gasket from the block with no leaks.
Manuals can be found at the manufacturers website. It seemed better,,but ,,I didn't run it long??? I know contaminated oil will make a smoker,,but I changed it completely now ,,with a new filter. I will be changing head gaskets soon. These valves ensure that the fuel that passes through does not come back. Manually operating it - the pump shoots gas from the outlet side 2 feet. Thank you for your question.