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Fuel pump leak grease?

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DoctorC
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Fuel pump leak grease?

Post #1 by DoctorC » Tue May 14, 2019 2:09 am

Hi All,
My fuel pump looks pretty new, but theres a nice wet area below it, leading me to believe that's the origin of (one of) my leaks. Upon further investigation, I found that the metal hoes leading to the carb is wiggle-able, and squishes out grease? The nut is tight as could be though...
Just changed the oil and there appears not to be any fuel in my oil. Should I just replace it, put on a new gasket, or look for an o-ring?

fuel-pump-crop.jpg

(pls ignore the upside down bolt on the line)

Thanks in advance!
DrC
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1967 Cherry Red Mustang
Weber 32/36,
MSD 6AL+MSD Coil,
Duraspark 2 dizzy

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B RON CO
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Re: Fuel pump leak grease?

Post #2 by B RON CO » Tue May 14, 2019 8:24 am

Hi, the metal fuel line from the pump to the carb would leak gas, not oil.

That is very dangerous.
If it is leaking gas you cannot run it.

I don't know why someone would put a hose clamp on the pump outlet.
The tubing nut looks too big for the fuel line.
The tubing nut should fit the tube tightly, like the one that is upside down and not being used.
I would cut the old double flare off and get the correct nut and make a new double flare.
Good luck
B RON CO. Still workin' on it!

1933 Ford Pickup - 59A Flathead V8
1966 Ford Bronco - U14 - 170/200 Straight 6
1966 Ford Mustang - 289 V8

DoctorC
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Location: Valencia (LA), CA

Re: Fuel pump leak grease?

Post #3 by DoctorC » Tue May 14, 2019 9:52 am

Hi bronco, thanks for the reply. Both the hose nut and clamp are from the other side of the hose, and not in use. Well at least I found one of my sources of clatter. I removed the clamp but since the hose is flaired I couldn't get the nut of.

As for the leak, I found it very odd. It is definitely full of a grey substance, like a thin grease. Maybe backfilled to seal? Any who, you suggestion is to replace the hose, right? I'll check if the so parts store has one.
1967 Cherry Red Mustang
Weber 32/36,
MSD 6AL+MSD Coil,
Duraspark 2 dizzy

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chad
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Fuel pump leak grease

Post #4 by chad » Tue May 14, 2019 10:00 am

2 X ^^^
the metal line between ur middle'n ring finger is all F'd up.
As B Ron sez re-flair the end & get rid of that mess.
I'm surprised @ 3 to 5 psi it's not spraying out more.
Good Find !
Lucky we don't have a x-flow motor/exh on that side - it'd B startin a fire !
not grease there, dirty fuel. (use senses to ID - smell).

"...couldn't get the nut of...."
where the flat on that rising metal tube of the pump is - U put a wrench. When tightening dwn a flair nut it keeps U frm twisting the tube offa the pump.
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

DoctorC
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Re: Fuel pump leak grease?

Post #5 by DoctorC » Tue May 14, 2019 1:33 pm

Holy crap! That's my fuel? More like mud! I think I'll be swapping the filter, should I consider doing something to the tank?
1967 Cherry Red Mustang
Weber 32/36,
MSD 6AL+MSD Coil,
Duraspark 2 dizzy

Max_Effort
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Re: Fuel pump leak grease?

Post #6 by Max_Effort » Tue May 14, 2019 8:28 pm

Looks like an an oily mess is just collecting there. If it were gas, it would be clean and reek of gas odor.

You shouldn’t be able to wiggle the line though. Just replace it. You can get a piece of bendable line with the flare and nut cheap enough.

Leaks run down hill. (unless they are spraying out) replace the line, clean the engine so it’s clean and dry, run it and see where the wet spot develops.

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bubba22349
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Re: Fuel pump leak grease?

Post #7 by bubba22349 » Tue May 14, 2019 9:10 pm

That type fuel pump has the hose barbs for a clamped on rubber hose conection, so there's no need for a nut and a flared fuel line. Just cut the flare end off the line and take the line nut off the reinstall your rubber line with its clamp. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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Re: Fuel pump leak grease?

Post #8 by wsa111 » Tue May 14, 2019 9:34 pm

Pressure wash that mess.
The inlet is held by a hose clamp.
The output is an inverted flare fitting.
67 mustang,C-4, with mod. 80 hd, custom 500 cfm carb with annular boosters, hooker headers, dual exh.-X pipe, flowmaster mufflers, DSII dist. MSD-6al & MSD-Blaster 8252 Coil. Engine 205" .030" over with offset ground crank & 1.65 roller rockers. 9.5 comp., Isky 262 cam.
2003 Ford Lightning daily driver. Recurving Distributors. billythedistributorman@live.com
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chad
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Re: Fuel pump leak grease?

Post #9 by chad » Tue May 14, 2019 9:48 pm

"...do something to the tank?"
I dont think so. It's just all frm right there. Clean gas comin out & mixin w/the crap around the leak.
If worried drain a lill off (gravety) as line dangles. Examine in clean (may B white?) bucket...
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

DoctorC
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Re: Fuel pump leak grease?

Post #10 by DoctorC » Tue May 14, 2019 11:53 pm

Thanks for all the pointers. I ordered a replacement hose from CJPony, the one in there now is a cludge. Last 20% to the carb is a rubber hose. The fuel coming out seems fine, that's a relief.

wsa111 wrote:Pressure wash that mess.

That is a good idea. My mechanic didnt want to get too gung ho on the cleaning since I have a PS leak that is so caked over, you cant make out the shape of the ... whatever the heck it is (cylinder?) So he cleaned up most, but not all the undercarriage.

Max_Effort wrote:Looks like an an oily mess is just collecting there. If it were gas, it would be clean and reek of gas odor.
Leaks run down hill. (unless they are spraying out) replace the line, clean the engine so it’s clean and dry, run it and see where the wet spot develops.

Tru dat. That's why I'm thinking gasket leak... tis downhill.
1967 Cherry Red Mustang
Weber 32/36,
MSD 6AL+MSD Coil,
Duraspark 2 dizzy

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bubba22349
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Re: Fuel pump leak grease?

Post #11 by bubba22349 » Wed May 15, 2019 1:14 pm

DoctorC wrote:Thanks for all the pointers. I ordered a replacement hose from CJPony, the one in there now is a cludge. Last 20% to the carb is a rubber hose. The fuel coming out seems fine, that's a relief.

wsa111 wrote:Pressure wash that mess.

That is a good idea. My mechanic didnt want to get too gung ho on the cleaning since I have a PS leak that is so caked over, you cant make out the shape of the ... whatever the heck it is (cylinder?) So he cleaned up most, but not all the undercarriage.

Max_Effort wrote:Looks like an an oily mess is just collecting there. If it were gas, it would be clean and reek of gas odor.
Leaks run down hill. (unless they are spraying out) replace the line, clean the engine so it’s clean and dry, run it and see where the wet spot develops.

Tru dat. That's why I'm thinking gasket leak... tis downhill.


So in this last post you just answered your original first question, since the Power Steering is leaking, this oil / fluid is being blown by the fan or air movement as you drive the car. Its going to be all over the bottom of the engine, plus the chassis, as well on the fuel pump. You need to get that PS leak fixed first than clean the whole bottom of the car. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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