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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Inverted Fuel Pump?

 
  #1  
Old 07-29-2010, 10:05 AM
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Steves55
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Question Inverted Fuel Pump?

Ok, color me confused! I recently replaced my defective fuel pump with an Airtex 4208. Installed it right side up with the outlets on the bottom and with the push lever angling downwards. It works fine but now I think I am getting too much pressure to my Holley 1904. I read an article in one of those Ford F100 history books and it mentioned that the 54 & 55 6 cylinder models used an inverted pump. Interesting so I checked out the fuel pumps for 55's on Mac's Auto Parts website and sure enough the picture appears to be my Airtex pump only inverted. Did I install this incorrectly or am I using the wrong pump. I wasn't having flooding issues until I changed the pump. Maybe with the lever pointing downward is making it produce too much pressure. Needless to say I'm a bit confused on this one and my apologies if I managed to confuse anyone else reading this.
 
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Old 07-29-2010, 11:19 AM
jim collins
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New one on me I never new it was possible to mount it upside down. I will stay tuned for further development.
 
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Old 07-29-2010, 01:24 PM
57icebox
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This thread might be good read. I found it when I was looking for info on my pump. I seem to only get a half of a pump. So last night I ditched the mechanical pump for an electric one.

https://www.ford-trucks.com/forums/8...uel-issue.html
 
 
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