83459M SPRING, LEVER RETURN Mariner
7040207, 7040208, 7040507
SPRING
Price: query
Rating:
Mariner entire parts catalog list:
7040208 1978
7040507 1987
Information:
This procedure checks for air in the fuel system. This procedure also helps with finding the source of the air.
Examine the fuel system for leaks. Ensure that the fuel line fittings are properly tightened. Check the fuel level in the fuel tank. Air can enter the fuel system on the suction side between the fuel transfer pump and the fuel tank.
Work carefully around an engine that is running. Engine parts that are hot, or parts that are moving, can cause personal injury.
Install a 2P-8278 Fuel Flow Tube (Sight Gauge) in the fuel return line. When possible, install the sight gauge in a straight section of the fuel line that is at least 304.8 mm (12 inch) long. Do not install the sight gauge near the following devices that create turbulence:
Elbows
Relief valves
Check valvesObserve the fuel flow during engine cranking. Look for air bubbles in the fuel. If there is no fuel that is present in the sight gauge, prime the fuel system. Refer to Systems Operation, Testing and Adjusting, "Fuel System - Prime" for more information. If the engine starts, check for air in the fuel at varying engine speeds. When possible, operate the engine under the conditions which have been suspect.
Illustration 1 g00578151
2P-8278 Fuel Flow Tube (Sight Gauge)
(1) A steady stream of small bubbles with a diameter of approximately 1.60 mm (0.063 inch) is an acceptable amount of air in the fuel.
(2) Bubbles with a diameter of approximately 6.35 mm (0.250 inch) are also acceptable if there is 2 seconds to 3 seconds intervals between bubbles.
(3) Excessive air bubbles in the fuel are not acceptable.
If excessive air is seen in the sight gauge in the fuel return line, install a second sight gauge at the inlet to the fuel transfer pump. If a second sight gauge is not available, move the sight gauge from the fuel return line and install the sight gauge at the inlet to the fuel transfer pump. Observe the fuel flow during engine cranking. Look for air bubbles in the fuel. If there is no fuel that is present in the sight gauge, prime the fuel system. Refer to Systems Operation, Testing and Adjusting, "Fuel System - Prime" for more information. If the engine starts, check for air in the fuel at varying engine speeds.If excessive air is not seen at the inlet to the fuel transfer pump, the air is entering the system after the fuel transfer pump. Refer to the Systems Operation, Testing and Adjusting, "Fuel System - Prime".If excessive air is seen at the inlet to the fuel transfer pump, air is entering through the suction side of the fuel system.
To avoid personal injury, always wear eye and face protection when using pressurized air.
To avoid damage, do not use more than 55 kPa (8 psi) to pressurize the fuel tank.
Pressurize the fuel tank to 35 kPa (5 psi). Do not use more than 55 kPa (8 psi) to avoid damage to the fuel tank. Check for leaks in the fuel lines between the fuel tank and the fuel transfer pump. Repair any leaks that are found.
If the source of the air is not found, disconnect the supply line from the fuel tank and connect an external fuel supply to the inlet of the fuel transfer pump. If this corrects the problem, repair the fuel tank or the stand pipe in the fuel tank.
Examine the fuel system for leaks. Ensure that the fuel line fittings are properly tightened. Check the fuel level in the fuel tank. Air can enter the fuel system on the suction side between the fuel transfer pump and the fuel tank.
Work carefully around an engine that is running. Engine parts that are hot, or parts that are moving, can cause personal injury.
Install a 2P-8278 Fuel Flow Tube (Sight Gauge) in the fuel return line. When possible, install the sight gauge in a straight section of the fuel line that is at least 304.8 mm (12 inch) long. Do not install the sight gauge near the following devices that create turbulence:
Elbows
Relief valves
Check valvesObserve the fuel flow during engine cranking. Look for air bubbles in the fuel. If there is no fuel that is present in the sight gauge, prime the fuel system. Refer to Systems Operation, Testing and Adjusting, "Fuel System - Prime" for more information. If the engine starts, check for air in the fuel at varying engine speeds. When possible, operate the engine under the conditions which have been suspect.
Illustration 1 g00578151
2P-8278 Fuel Flow Tube (Sight Gauge)
(1) A steady stream of small bubbles with a diameter of approximately 1.60 mm (0.063 inch) is an acceptable amount of air in the fuel.
(2) Bubbles with a diameter of approximately 6.35 mm (0.250 inch) are also acceptable if there is 2 seconds to 3 seconds intervals between bubbles.
(3) Excessive air bubbles in the fuel are not acceptable.
If excessive air is seen in the sight gauge in the fuel return line, install a second sight gauge at the inlet to the fuel transfer pump. If a second sight gauge is not available, move the sight gauge from the fuel return line and install the sight gauge at the inlet to the fuel transfer pump. Observe the fuel flow during engine cranking. Look for air bubbles in the fuel. If there is no fuel that is present in the sight gauge, prime the fuel system. Refer to Systems Operation, Testing and Adjusting, "Fuel System - Prime" for more information. If the engine starts, check for air in the fuel at varying engine speeds.If excessive air is not seen at the inlet to the fuel transfer pump, the air is entering the system after the fuel transfer pump. Refer to the Systems Operation, Testing and Adjusting, "Fuel System - Prime".If excessive air is seen at the inlet to the fuel transfer pump, air is entering through the suction side of the fuel system.
To avoid personal injury, always wear eye and face protection when using pressurized air.
To avoid damage, do not use more than 55 kPa (8 psi) to pressurize the fuel tank.
Pressurize the fuel tank to 35 kPa (5 psi). Do not use more than 55 kPa (8 psi) to avoid damage to the fuel tank. Check for leaks in the fuel lines between the fuel tank and the fuel transfer pump. Repair any leaks that are found.
If the source of the air is not found, disconnect the supply line from the fuel tank and connect an external fuel supply to the inlet of the fuel transfer pump. If this corrects the problem, repair the fuel tank or the stand pipe in the fuel tank.
Parts spring Mariner:
82079M
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7005201, 7005207, 7008204, 7008208, 7008218EW, 7008226, 7008238, 7008248, 7008305, 7008425, 7010209, 7015307, 7015327, 7015529, 7020201, 7025200, 7025207NW, 7025208CW, 7025500, 7026226, 7028207, 7028527, 7030200, 7030205, 7030301, 7030320, 7040202, 7
83588M
83588M SPRING, STARTER
7020201, 7025200, 7025207NW, 7025207PW, 7025500, 7026226, 7028527, 7030200, 7030205, 7030301, 7030320, 7040202, 7040206, 7040207, 7040208, 7040328, 7040507, 7040706, 7040716
83591M
83591M SPRING, PAWL
7020201, 7025200, 7025207NW, 7025207PW, 7025500, 7026226, 7028527, 7030200, 7030205, 7030301, 7030320, 7040202, 7040206, 7040207, 7040208, 7040328, 7040507, 7040706, 7040716
82073M
82073M SPRING
7040207, 7040208, 7040507, 7048207, 7048227, 7048321, 7055324, 7055524, 7060507, 7060522, 7060528
82080M
82080M SPRING
7008204, 7008208, 7008226, 7040202, 7040206, 7040207, 7040208, 7040328, 7040507, 7040706, 7040716, 7048207, 7048227, 7048321, 7055324, 7055524, 7060507, 7060522, 7060528, 7F75411JD, 7F75412RD
92616M
83465M
83465M SPRING
7040202, 7040206, 7040207, 7040207PW, 7040208, 7040208PW, 7040328, 7040507, 7040706, 7040716
83429M
83429M SPRING, COMPRESSION
7040202, 7040206, 7040207, 7040207PW, 7040208, 7040208PW, 7040328, 7040507, 7040706, 7040716