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#1
10-17-2009, 11:15 PM
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Aeromotive fuel pump question/extra 3/8 NPT outlet?
I bought this pump from a member awhile back. On the inlet side (flat spot below the blue A/N fitting) there is another 3/8NPT outlet that is not plugged. Should that be plugged? I am running a bypass regulator at the carb.
Thank you,
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 Johnny US Army Retired1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
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#2
10-18-2009, 10:31 AM
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It could be the return port, some models return the fuel right at the pump back to the cell. This way you would have a short return line from the pump to the cell and one feed line running to the engine. fwiw JD
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Good luck to the new owner of the Ventura II! Sold the car after 13+ years. Look for it on the Hot Rod Power Tour in the future as it's currently being re-configured as a Pro-Touring ride! 
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#3
10-18-2009, 02:03 PM
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I dont think it's supposed to be a return,but I could be wrong.
IIRC on those pumps that's where the internal bypass mechanism is supposed to go. Might be the bypass assembly was pulled and not replaced??? Even the instructions from aeromotive are extremely vague on that deal...  B.P. |
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#4
10-18-2009, 02:16 PM
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Quote:
__________________
Johnny US Army Retired1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
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#5
10-18-2009, 04:03 PM
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Probably just a pump seal,easy fix if they'll get you the parts.
They must hide the bypass assy. down in that hole,the visible threads kinda make it look like something is supposed to go there,but none of the info I've seen said anything about those being external bypass style pumps,so it seemed pretty obvious that hole was for some other purpose. I'm sure the guys @ aeromotive will help you out,I hear they have excellent customer service over there,IIRC there is a guy there that shares my first name (Bret),he's supposed to be the "go to guy" over there. Good luck with it. Bret P. |
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