another crossflow fuel question

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May 12, 2010 | 03:59 PM

93coleman

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another crossflow fuel question

I know this has been discussed before,but just wanted to make sure I know what im doing before i start.My 92 f-250 has the fuel crossflow problem.My rear tank is rusted out,and im pretty sure the pump is shot.It has been dripping for 3 months.I want to remove the rear tank,possibly permanently.Do I just plug all three hoses and cap the electrical connections?Can I use rubber hoses with hoseclamps and plugs.Thanks for any help in advance.

May 12, 2010 | 09:11 PM

93coleman

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Does anyone know what kind of pressure the return line has?Does the supply backfeed from the front pump too,or just the return?Anyone?Thanks for the help.

May 13, 2010 | 06:56 AM

acom01

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A good hose suitable for fuel injection lines (find a hose for 10bar or 20bar wp), and a good clamp is ok for the system pressure. The return line i´m not sure but i belive is less pressure.

May 13, 2010 | 08:59 AM

subford

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From: Easton,Ks

Quote:

Originally Posted by 93coleman

Does anyone know what kind of pressure the return line has?

It has no head blockage so the pressure would be very low if any.

Quote:

Originally Posted by 93coleman

Does the supply backfeed from the front pump too,or just the return?

Yes the supply does back-feed from the front pump also.
The pressure is under 45 or 60 PSI depending if you have a 302, 351, 460 or a 4.9.
If the fuel pressure regulator does not lift it could go over 100 PSI.