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Orfice fitting on filter

4297 Views 8 Replies 5 Participants Last post by  dlblack
What is inside the fuel return line orfice to the filter top mnext to the schrader valve. Did a clear line check for air and had lots of air back to the filter. Couldn't blow or suck thru the orfice, so ran a needle thru it and retried air check, now the air goes back into the filter and clears to solid fuel. There seems to be some kind of check (rubber ?)inside the fitting. Motor seems to run alot quieter now. /ubbthreads/images/graemlins/shrug.gif

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If you're getting flow back INTO the IP supply line, would that mean you have a return line restriction going back to the tank?
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