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PostPosted: Thu Sep 11, 2014 6:03 pm 
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Joined: Thu Apr 07, 2005 11:48 am
Posts: 2581
Location: Republic of Texas, 77836
Luvrv8 is correct about a vented tank where ever you do it at the cap,, some people put a vent house off the tank that goes to a "vent" filter?

Most new systems run closed because emissions standards require it. But I could be wrong. Luvrv8 should know. I do not work in the industry any more but have had to work on late model VW's that were ours. All else goes to my local shop who I trust except, my older stuff I do, even Bosch early fuel injection. :lol:

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75 Luv, 350 V8, TH350, Camaro rearend. New 1975 Luv Step side. Stock for now.
Grandmaster of the "Shade Tree" way.. I can't see the yard for all the cars. Come on down and we will sit on the porch and watch the grass grow.


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PostPosted: Wed Sep 22, 2021 6:18 pm 
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1badluv wrote:
There is a much easier way to solve your problem. As mentioned above those electric fuel pumps must move fuel in order to keep cool. The return line is a very important piece of the puzzle you didn't use. No fuel pressure regulator needed!!!!!!!!
The carb only needs 3-6 psi, but if the carb bowl is full then the fuel isn't moving and the fuel pump gets hot over heats thus stops working. All you need is to use the fuel return line and problem is solved. It is just this simple go to O'Reilly's and get a brass 3 way T. Get two 5/16" size by 1/4" thread brass nipples and one 3/16" size by 1/4" thread nipple. Will need a roll of thread sealing tape also. Once all this is purchased just lay the 3 way T on table place the two 5/16" at each end of T and wrap sealing tape around the threads not getting any extra over the holes and install them into the 3 way T. Once done wrap tape around 3/16 nipple and install into the top of 3 way T. The 3/16 nipple now goes back to return line and one end of 5/16" goes to main fuel delivery line while other end goes to carb. Problem solved!!!!! The fuel flows freely, pump remains cool, carb isn't over loaded by fuel pressure, and this also allows fuel tank not to create a vacuum because of a plugged off return line. Hope this helps.
Mike.


I’m looking to purchase a luv truck as we speak. The owner claims that The truck is having this exact issues. Your quote listed above seems like the best way to solve this problem. But I’m not quite following everything that I have read in the quote. Any way you can explain it a little better? Thanks Joe


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