Help with B&S Fuel Pump
I'm looking for some help with a fuel pump on a Cub Cadet LT1018 lawn tractor. The engine is a 18.5 HP Briggs and Stratton. It looks like the engine model number is ELS500.
The fuel pump has a fuel line from the tank and a fuel line to the carb., but it also has an oil line running from the oil fill tube. I don't understand why a fuel pump would have an oil line?
The problem started as an oil leak from the fuel pump when the engine was under a heavy load (bagging tall grass). Now the oil leak has gotten worse and the engine will only run with the choke pulled all the way out. I assume the fuel pump is not getting enough fuel to the carb?
This is the second time it has happened. Has anyone ever heard of this? Anything that could be causing the problem other than a faulty fuel pump?