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[Markus2]

so i read up in some other threads on here about the issue of using the mustang set up, "sock" ????? when changing out fuel pumps in our marks.

so...

i also read that issues related to using "the mustang sock" in our marks will:

ISSUE ONE: lead to fuel starvation issues when turning our wheels and going to accel. out of the turn, the engine will almost stall out and than within a sec or two come back to life.

ISSUE TWO: fuel starvation issues when WOT off a ramp on a straightaway for example.

***THIS ONLY HAPPENS When using the mustang SOCK and in combination with our fuel tanks being at approx. 1/4 or less in quantity.****


____ALL OF THE ABOVE HAS BEEN GATHERED INFO. FROM OTHER THREADS HERE IN THE MARK 7 FORUM________


so my question is:

when i make lefts i notice the surging issue; and sometimes under WOT. AND only when i have approx. 1/4 tank or less.


my fuel tank is leaking, its rotted out.
Just got new tank, straps and 190 pump
*(pump and kit came from Auto Performance Engineering-this site was recomended in the same thread where i gathered the above info. on fuel pumps)

so i am about to install (well my mechanic is ) the pump and tank...
Going into this my concern is that what does the sock look like and how can i tell if the sock in my tank is from a mustang.
In the pump i got, the list of parts does not list a sock.
I am very very confused.



Guidance Please!!!!!!!!
Dont want to use the wrong sock again-and in the thread that said to use the site i did, AEP being the site, said to use that site specifically because they have the correct sock.
where is the sock.
what is the sock.

Im a lost fool.

 

[Elessee]

never heard of it but a quick Google search for:
"sock filter" fuel
gets lots of hits.

Without actually reading any pages, it seems that a "sock" is a type of fuel filter that resembles a stocking.. more like a man's sock.

One header indicates that some have inner springs that prevent collapse..
Another header says: "A sock filter is placed into a sealed cylinder. The fuel pump forces fuel into the top of the cylinder, through the pores in the sock, and out of an opening ... "

So, depending on if fuel is pulled through the outside-inwards or forced through the inside-outwards, their construction differs..

My uneducated guess is the fuel pump in the tank uses one, and fuel starvation would be a likely result of using the wrong type due to partial collapse of that sock filter..

 

[Magic Al]

Fuel pump that fits an '89 Mark VII. The "sock" is that off white part @ the bottom which prevents the pump from picking up marbles etc, from the tank.

The solution of course is to keep more than 1/4 tank of fuel on board. You should anyway, especially in winter. Otherwise don't accelerate sharply and turn left @ the same time. This is common w/ Mark VII's.

 

[Markus2]

THANKS MK7 people

both above posts have helped me.
thank you.

So that strainer looking item, shaped like a sock came with my fuel pump kit.
So im good to go.
Sock is definately not the term they used to list that item.

Ill run over to my parents basement tom. to see what the part is listed as.



* Hey im sure there is a chance that somebody else could get confused the same way I did. well, i would like to think there is another fool out there and that im hopefully not alone on the above confusion.


Thanks

 

[Markus2]

alritey then...UPDATE (FUEL SENDING UNIT)

so update...



Got fuel pump, filter and new tank done yesterday.
The fuel tank straps did not fit however, over the plastic tank cover.
So-used a longer bolt and went without the plastic cover.


Should i be concerned about my new form of 2 lb. weight reduction, having a BAD AFFTER AFFECT on the fuctioning of my mark.

Got to drive it a bit today- seems very smooth.

Upon removal of fuel tank and assembly I found out that the fuel pump and sending unit are in two seperate compartments. I thought usually these two devices, pump and sending apparatus, were in the same location, not two seperate holes for each unit...

But i find everything interesting-just did not know it would be like that..

so i the sending unit is rusted-its fine, working now, but i need a new one down the road.


Question:
if the sending unit stops working, and your computer DTE is all off, and fuel gauge is off too than rite-because doesn't the fuel gauge and DTE on the computer work off the same signal, or not?

and if my sending unit does stop working will it confuse the computer at all in a way that it will effect my car?

Other than for fuel observation purposes, luxury purposes if you would, i am thinking that it serves no purpose???


thanks guys

 

[abe_lincoln78]

if your sending unit goes bad the gauge in the car (if digital) will probably read 0. If its analog, it will probably read full tank. Your car's performance will not be affected (that is, of course, assuming there's still gas in your tank. . . otherwise it just won't run).

You will find separate fuel pump hangers and fuel level sending units on Fox body fords like the T-bird, Mark VII, and Cougar as well as Panther body cars at least through the '80's. Don't know why they did it, but the system works fine. On Panther body cars, the fuel level sensor enters the tank in a location where you don't have to remove the tank to replace the sensor, which is always nice.

 

[Markus2]

thanks

So, my on board computer often reads "O" (as in ZERO) when i hit the DTE button and function.

My fuel gauge works fine as of now, floats a bit but ever ford i ever owned has also.

I do have to replace the sending unit because there was a bit of rust on in when i replaced the tank and pump last week.

What company makes a decent fuel sending unit?
Is there any kind of upgrade to consider when changing this?
With the new 190 pump i put in going, is there anything different that should be changed on the sending unit or elsewhere?

thanks:shifty:

 

[OldSchool1]

Fuel pump that fits an '89 Mark VII. The "sock" is that off white part @ the bottom which prevents the pump from picking up marbles etc, from the tank.

The solution of course is to keep more than 1/4 tank of fuel on board. You should anyway, especially in winter. Otherwise don't accelerate sharply and turn left @ the same time. This is common w/ Mark VII's.

Great explanation and great picture!

Thanks Al.

 

[NYC LS8]

The Mustang sock looks just like it's called - a sock. It's not plastic like the one for the Mark VII. I used it when I put the Walbro 190 in my old 87 and had that same problem. It royally sucked when at the track that I had to run with a 1/2 tank or more.

 

[Markus2]

The Mustang sock looks just like it's called - a sock. It's not plastic like the one for the Mark VII. I used it when I put the Walbro 190 in my old 87 and had that same problem. It royally sucked when at the track that I had to run with a 1/2 tank or more.

Right you are.
So the pump came with the correct sock this time, the hard sock, because I am no longer bogging out around the turns, and under hard acceleration when running less than a 1/4 tank.

Good thing to know that the mustang sock and mark 7 sock are most def. NOT interchangeable if you want to have normal performance when driving with less than 1/4 tank.



GOOD STUFF GUYS