Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: pro-five-oh on February 17, 2011, 11:45:03 PM

Title: 255lph fuel pump woes...help!
Post by: pro-five-oh on February 17, 2011, 11:45:03 PM
Hey all, my stock fuel pump died in my '88 Cougar, so I got a 255lph one from Summit.  It subsequently died on me when the tank was close to empty a WEEK LATER, and according to my mechanic, it was because the pickup/sock on the new pump isn't in the same location as my stock pump.

I am going over there to examine, but has anyone heard of this?  And what the proper fix might be?

TIA...
Title: 255lph fuel pump woes...help!
Post by: Kitz Kat on February 18, 2011, 04:20:40 AM
I don't see how the position of the sock could affect it. It is just a filter.
Title: 255lph fuel pump woes...help!
Post by: vinnietbird on February 18, 2011, 08:26:58 AM
Quote from: Kitz Kat;353222
I don't see how the position of the sock could affect it. It is just a filter.

X2. It's just a filter.

 It was probably a bad pump. Stuff happens, even to new parts. The filter doesn't have a choice but to be in the location it's supposed to be. The pump only fits in the tank one way.
Title: 255lph fuel pump woes...help!
Post by: cougarman on February 18, 2011, 09:20:53 AM
The Tbirds use a different sock than the Mustangs.
Title: 255lph fuel pump woes...help!
Post by: flylear45 on February 18, 2011, 12:32:50 PM
Quote from: cougarman;353233
The Tbirds use a different sock than the Mustangs.

Yup.  NAPA used to have 'em. Haven't checked recently.
Title: 255lph fuel pump woes...help!
Post by: thunderjet302 on February 18, 2011, 12:59:07 PM
I've heard that running an EFI pump in a dry tank will kill it but I've never seen it happen.
Title: 255lph fuel pump woes...help!
Post by: cougarman on February 18, 2011, 01:15:02 PM
Quote from: thunderjet302;353241
I've heard that running an EFI pump in a dry tank will kill it but I've never seen it happen.

Only thing I could think of. I know the fuel cools the pump.
Title: 255lph fuel pump woes...help!
Post by: Blown306Cougar on February 18, 2011, 05:17:11 PM
http://www.lincolnsonline.com/forum/showpost.php?p=791582&postcount=8


Nick
Title: 255lph fuel pump woes...help!
Post by: pro-five-oh on February 19, 2011, 10:17:49 AM
Went to my mechanic, yup, its a different sock. If you run it low with a Mustang sock (something I'll never do again) you will kill the pump. And the Tbird sock has a smaller opening that won't fit on a aftermarket Walboro.

LincolnsOnline peeps say that a Mark VII sock fits just fine, so I have ordered one.

Nick has a good idea there too, I will look into it more when LoL's database stops ping out on me.
Title: 255lph fuel pump woes...help!
Post by: grey88smokin on February 20, 2011, 09:28:09 PM
http://www.jdsperformance.com/index.asp?initemuid=436&fcmd=item&inmake=0

There is a Tbird specific kit with the proper hardware/sock etc that fits perfectly.
Title: 255lph fuel pump woes...help!
Post by: pro-five-oh on March 06, 2011, 09:54:23 PM
FYI: it took a little while but after seeing what the Mark VII guys do, I put Mark VII sock for my Cougar...and that worked!  The socks between the Mark and Tbird/Cougar are the same, except for the diameter of the sock where it attaches to the fuel pump.

So when you upgrade your fuel pump, get a Mark VII sock for it too!!!
Title: 255lph fuel pump woes...help!
Post by: Bob on March 06, 2011, 11:40:17 PM
I bought from this link and the sock was correct.

http://www.apeusa.com/html/fpapps.html
Title: 255lph fuel pump woes...help!
Post by: pro-five-oh on March 07, 2011, 11:28:23 AM
Nice, but in case you get a fuel pump from somewhere else for less money (like a guy parting out a Mustang) you don't need to buy a kit, you just spend $12 for the 1988 Lincoln Mark VII sock.
Title: 255lph fuel pump woes...help!
Post by: jpc647 on March 07, 2011, 12:10:14 PM
Quote from: cougarman;353244
Only thing I could think of. I know the fuel cools the pump.

Scary concept, isn't it, lol.
Title: 255lph fuel pump woes...help!
Post by: Kitz Kat on March 07, 2011, 02:42:44 PM
What part # do you have, I used my old sock on mine not a problem.