**Always follow the instructions in your repair manual when doing repair or maintenance work on Outdoor Power Equipment. Manuals can be found at the manufacturers website.* Checking the fuel system, and vacuum fuel pump on a V-twin 25HP Kohler engine involves checking the fuel lines that attach to the pump, and checking fuel flow. The first step is to check to make sure fuel can flow from the gas tank to the fuel pump. To do this, disconnect the fuel line from the vacuum inlet fitting on the vacuum pump. Take the fuel line and lower it to a point that is below the fuel tank and see if gravity will cause fuel to flow from the tank through the line. If fuel flows, than the line is clear. If fuel will not flow, than check the fuel filter to see if it is restricted. Also check the fuel tank shut off valve if the tank is equipped with one. The valve may be in the off position, or dirty and restricted. Check the fuel tank cap to see if the vent on the fuel tank cap is plugged. If the fuel tank cap vent is plugged than fuel will not flow out of the fuel tank. Next, check the pulse line on the vacuum pump. Make sure it is connected correctly to both the vacuum pump and the engine crankcase. Also, make sure the engine is not overfilled with oil and the pulse line is not filled with oil. If the engine oil is overfilled with oil, than oil can make its way into the pulse line and block the pressure necessary to operate the fuel pump. The next thing to check is the fuel line from the …
Posts Tagged ‘checking’
Small Engine Repair: Checking a Vacuum Fuel Pump / Fuel System on a Kohler V-Twin Engine
Written by Tools on Tuesday, November 29th, 2011 in Power Equipment.
Tags: checking, Engine, Fuel, KOHLER, Pump, Repair, Small, System, Vacuum, VTwin
Small Engine Repair: Checking Fuel Pump Diaphragm & Inlet Needle on a Diaphragm Carburetor
Written by Tools on Monday, October 31st, 2011 in Power Equipment.
Tags: carburetor, checking, Diaphragm, Engine, Fuel, Inlet, Needle, Pump, Repair, Small
**Always follow the instructions in your repair manual when doing repair or maintenance work on Outdoor Power Equipment. Manuals can be found at the manufacturers website.** In this video I show how to check the fuel pump diaphragm and inlet needle for leaks on a diaphragm carburetor. A diaphragm carburetor is used on hand held power equipment, and are popular because they will work in any position. All chainsaws, trimmers and blowers that I have seen use a diaphragm carburetor. To check the fuel pump and inlet needle, pressurize the carburetor to 10 psi through the fuel inlet. The carburetor should hold the pressure fairly steady, and if it doesn’t than there is a leak around the fuel pump diaphragm or inlet needle. You can pin point the leak by dunking the carburetor in water while it is pressurized. If the leak is around the fuel pump diaphragm, than either the fuel pump diaphragm, fuel pump diaphragm cover or the body of the carburetor is at fault. If the leak is coming out of the venturi, than the inlet needle or seat is faulty. Tools used: – 3/8″ wrench to remove carburetor – Mityvac to pressurize the carburetor – Needle Nose plyers Specifications: – Carburetor should be pressurized to 10psi through the fuel inlet. Never exceed 10psi. Its important to run fuel through the carburetor before testing. A wet carburetor will hold the pressure better than a dry one.
Basic Car Care & Maintenance : Tips for Checking Car Tire Pressure
Written by Tools on Wednesday, September 8th, 2010 in Automotive Parts.
Tags: Basic, Care, checking, Maintenance, Pressure, Tips, Tire
Checking your car tire pressure as an auto-maintenance measure; learn how from our expert mechanic in this free car-maintenance video. Expert: Jeff Wong Bio: Jeff Wong has a masters degree in Mechanical Engineering. He has owned & operated an aftermarket automotive parts business for five years. He has been working on automobiles for 17 years. Filmmaker: Joshua Kidwell
Basic Car Care & Maintenance : Checking Car Windshield Wiper Fluid
Written by Tools on Monday, September 6th, 2010 in Automotive Parts.
Tags: Basic, Care, checking, Fluid, Maintenance, Windshield, Wiper
Check the cars windshield wiper fluid level by looking in the wiper-fluid can; learn how from our expert mechanic in this free car-maintenance video. Expert: Jeff Wong Bio: Jeff Wong has a masters degree in Mechanical Engineering. He has owned & operated an aftermarket automotive parts business for five years. He has been working on automobiles for 17 years. Filmmaker: Joshua Kidwell
Basic Car Care & Maintenance : Checking Car Drive Belts
Written by Tools on Tuesday, August 31st, 2010 in Automotive Parts.
Tags: Basic, Belts, Care, checking, Drive, Maintenance
Check the car’s accessory drive belts, which can cause peripheral engine damage if the belts snap; learn how from our expert mechanic in this free car-maintenance video. Expert: Jeff Wong Bio: Jeff Wong has a masters degree in Mechanical Engineering. He has owned & operated an aftermarket automotive parts business for five years. He has been working on automobiles for 17 years. Filmmaker: Joshua Kidwell
Basic Car Care & Maintenance : Checking Car Power Steering Fluid
Written by Tools on Thursday, April 22nd, 2010 in Automotive Parts.
Tags: Basic, Care, checking, Fluid, Maintenance, Power, Steering
Check the car’s power steering fluid level every so often to prevent the car steering from going out; learn how from our expert mechanic in this free car-maintenance video. Expert: Jeff Wong Bio: Jeff Wong has a masters degree in Mechanical Engineering. He has owned & operated an aftermarket automotive parts business for five years. He has been working on automobiles for 17 years. Filmmaker: Joshua Kidwell
Basic Car Care & Maintenance : Checking Car Auto Transmission Fluid
Written by Tools on Monday, April 12th, 2010 in Automotive Parts.
Tags: Auto, Basic, Care, checking, Fluid, Maintenance, Transmission
Check the car’s automatic transmission fluid level using the transmission dip stick near the car engine; learn how from our expert mechanic in this free car-maintenance video. Expert: Jeff Wong Bio: Jeff Wong has a masters degree in Mechanical Engineering. He has owned & operated an aftermarket automotive parts business for five years. He has been working on automobiles for 17 years. Filmmaker: Joshua Kidwell
Basic Car Care & Maintenance : Checking Car Tire Tread Wear
Written by Tools on Monday, April 12th, 2010 in Automotive Parts.
Tags: Basic, Care, checking, Maintenance, Tire, Tread, Wear
Check car tire tread wear to ensure safety when tires near their mileage limit; learn how from our expert mechanic in this free car-maintenance video. Expert: Jeff Wong Bio: Jeff Wong has a masters degree in Mechanical Engineering. He has owned & operated an aftermarket automotive parts business for five years. He has been working on automobiles for 17 years. Filmmaker: Joshua Kidwell
Basic Car Care & Maintenance : Checking Car Motor Oil Level
Written by Tools on Sunday, April 11th, 2010 in Automotive Parts.
Tags: Basic, Care, checking, Level, Maintenance, Motor
Check the engine oil level on your car by looking at the dip stick; learn how from our expert mechanic in this free car-maintenance video. Expert: Jeff Wong Bio: Jeff Wong has a masters degree in Mechanical Engineering. He has owned & operated an aftermarket automotive parts business for five years. He has been working on automobiles for 17 years. Filmmaker: Joshua Kidwell
Basic Car Care & Maintenance : Checking Car Engine Spark Plugs
Written by Tools on Friday, April 9th, 2010 in Automotive Parts.
Tags: Basic, Care, checking, Engine, Maintenance, PLUGS, SPARK
Check car engine spark plugs and wires under the hood as a preventative maintenance step; learn how from our expert mechanic in this free car-maintenance video. Expert: Jeff Wong Bio: Jeff Wong has a masters degree in Mechanical Engineering. He has owned & operated an aftermarket automotive parts business for five years. He has been working on automobiles for 17 years. Filmmaker: Joshua Kidwell