**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.
Posts Tagged ‘Fuel’
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
FRAM G3850 In-Line Fuel Filter
Written by Tools on Thursday, October 20th, 2011 in Automotive Parts.
Tags: Filter, Fram, Fuel, G3850, InLine
- Fram is the CONSUMERS #1 CHOICE
- Changing Fuel filters will improve the engines emission
- Changing the fuel filter will also improve the engines performance
- Conventional stainless steel and conductive plastic fuel filters to meet the needs of virtually all engine configurations
- Accessory filters are also important to your vehicle’s performance
Product Description
Changing the fuel filter can improve the engines performance… More >>
Fuel Tank Caps
Written by Tools on Thursday, October 13th, 2011 in Automotive Parts.
Tags: Caps, Fuel, Tank
www.tankcomponentsandaccessories.com We proudly offer made in the USA Fuel Tank Parts,Components and locking and non locking fuel tank caps
FRAM G8164 In-Line Fuel Filter
Written by Tools on Saturday, August 27th, 2011 in Automotive Parts.
Tags: Filter, Fram, Fuel, G8164, InLine
- FRAM is the consumer’s #1 choice
- Changing Fuel filters will improve the engines emission
- Changing the fuel filter will also improve the engines performance
- Conventional stainless steel and conductive plastic fuel filters to meet the needs of virtually all engine configurations
- Accessory filters are also important to your vehicle’s performance
Product Description
Clean fuel is important because there are small jets and passages in the carburetor and opening in a fuel injector. The fuel filter is responsible for keeping the smaller contaminants in the system out of the engine and … More >>
Straight Talk on the Importance of Fuel Preserver
Written by Tools on Saturday, July 30th, 2011 in Power Equipment.
Tags: Fuel, Importance, Preserver, Straight, Talk
Straight Talk from Briggs & Stratton Engineer Aaron on the importance of using fuel preserver.
Stant 10583 Locking Fuel Cap
Written by Tools on Sunday, July 10th, 2011 in Automotive Parts.
Tags: 10583, Fuel, Locking, Stant
- A quality locking mechanism deters fuel theft and vandalism
- Original equipment performance and safety standards
- OEM quality construction and materials
- Replacing an old, leaky or missing gas cap can save as much as a gallon of gas every 15 days
- A new gas cap can pay for itself in less than three months.
Product Description
Stant locking gas caps are OEM quality both in construction and materials as well as deterrent to fuel theft and vandalism. A gas/fuel cap performs three very important functions; safety of the vehicle’s occupants, fuel … More >>
Stant 10724 Fuel Cap
Written by Tools on Sunday, July 10th, 2011 in Automotive Parts.
Tags: 10724, Fuel, Stant
- Replacing an old, leaky or missing gas cap can save as much as a gallon of gas every 15 days
- A new gas cap can pay for itself in less than three months.
- Original equipment performance and safety standards
- OEM quality construction and materials
- Original Equipment replacement fuel cap
Product Description
Replacing an old, leaky or missing gas cap will save as much as a gallon of gas every 15 days and can pay for itself in less than three months. Stant gas caps are OE style and meet or exceed all original equipment perfo… More >>
how to rebuild a fuel injector by watkinsmotorsports.com
Written by Tools on Monday, June 13th, 2011 in Hand Tools.
Tags: Fuel, injector, Rebuild, watkinsmotorsports.com
Ever wonder if your injectors are working properly. Watkinsmotorsports.com shows you how to clean, test and replace soft parts on your fuel injectors. It’s not as hard as it seems. Using an ultra-sonic jewelry cleaner and a few simple hand tools you can rebuild your fuel injectors yourself. Learn how to test injector coils (Ohm readings) and how to replace fuel injector basket filters.
Stant 10837 Fuel Cap
Written by Tools on Sunday, June 5th, 2011 in Automotive Parts.
Tags: 10837, Fuel, Stant
- Replacing an old, leaky or missing gas cap can save as much as a gallon of gas every 15 days
- A new gas cap can pay for itself in less than three months.
- Original equipment performance and safety standards
- OEM quality construction and materials
- Original Equipment replacement fuel cap
Product Description
Replacing an old, leaky or missing gas cap will save as much as a gallon of gas every 15 days and can pay for itself in less than three months. Stant gas caps are OE style and meet or exceed all original equipment perfo… More >>
Stant 10623 Fuel Cap
Written by Tools on Friday, June 3rd, 2011 in Automotive Parts.
Tags: 10623, Fuel, Stant
- Replacing an old, leaky or missing gas cap can save as much as a gallon of gas every 15 days
- A new gas cap can pay for itself in less than three months.
- Original equipment performance and safety standards
- OEM quality construction and materials
- Original Equipment replacement fuel cap
Product Description
Replacing an old, leaky or missing gas cap will save as much as a gallon of gas every 15 days and can pay for itself in less than three months. Stant gas caps are OE style and meet or exceed all original equipment perfo… More >>
