How do you bleed a Yanmar diesel engine?

How do you bleed a Yanmar diesel engine?

How do you bleed a Yanmar diesel engine?

1. Turn the fuel control valve to the “On” position.
2. Loosen the air bleed screw on the top of the fuel filter canister with a screwdriver.
3. Loosen the fuel return pipe bolt with a wrench at the last injector before the pipe re-enters the fuel pump.

How do you get air out of diesel lines?

To purge air from the low-pressure side of the fuel system, open fuel-line unions and bleed ports downstream of the pump, one at a time, beginning with those closest to the pump, and continue pumping until fuel, and not air, runs out.

What causes air in the fuel lines?

Fuel lines containing air can cause the engine to not run properly. Generally, air is introduced to the fuel lines when there is a leak or during fuel draining for equipment storage.

Where do you Bleed the fuel line in a car?

When you are done working on the fuel system, purge the system of air. To do this, you must know how to bleed a fuel line. Open the hood of your vehicle and locate the fuel rail. This is normally located towards the back of the engine bay, on top of the engine towards the firewall.

How to bleed the fuel system and filter?

Unfortunately it is not feasible to fill the new element with fuel so the air will have to be evacuated and replaced with fuel as part of the fuel bleeding process . This will be done with the hand primer pump. PURGING THE AIR WITH THE HAND PRIMER PUMP : Don’t be stingy when venting air and/or a mixture of air and fuel. The fuel system must be

What is a bleeder valve on a fuel line?

Locate the Schraeder valve. This valve looks like a valve stem that you would normally find on a tire. This valve is a bleeder valve that will release pressure and purge air from the system if you loosen or remove it.

What happens when you bleed the fuel pump?

4.108/7 Owners, pay particular attention when bleeding the pump, the uppermost bleed screw which incorporates the anti-stall device. (as shown below) This fixture on some pumps is bonded into the housing and can easily break free, especially on older pumps. This will then leak profusely and render the engine un-serviceable.