Re: Trouble shooting

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Posted by Tim Daley(MI) on December 11, 2017 at 11:51:19 [URL] [DELETE] :

In Reply to: Trouble shooting posted by Mike Stanaway on December 10, 2017 at 12:51:32:

Chances are the coil is good, might want to put it back on -unless you have a 12-volt conversion -do you? The N fuel system has three screen in line, two in the Sediment Bulb Assembly and one in the brass elbow inlet on the carb. The sediment bulb has a fine mesh screen on the stem that goes up into the fuel tank when it is screwed in -in photo it is covered with a cardboard protector as purchased new. The 2nd one is the large fine mesh brass one that goes between the bulb halves. It has an offset square hole to slip over the fuel inlet port. The3rd screen is soldered on the brass elbow that screws in the carb. You need to remove the fuel line then unscrew the elbow to get it out before cleaning. First test, with engine COLD, container like a coffee can under carb, loosen drain plug, then open sediment bulb valve 2 Full Turns to view fuel flow as described below. Do a basic root cause problem solving method before switching out parts that may or may not be bad in the first place. Once you establish fuel flow is normal, the next step will be to check for spark.

MARVEL-SCHEBLER FORD N-SERIES CARB -BRASS FUEL INLET ELBOW LOWER RIGHT:

FORD N-SERIES FUEL SEDIMENT BULB ASSEMBLY, w/ VALVE STEM AND SCREENS:

Tim Daley(MI)


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