Mechanical Fuel Pump Replacement FORD 351m 400

1978 351m Mechanical Fuel Pump Replacement

[daveb]

Used the #2 form a gasket on both 78’s back in the 80’s and 90’s - works fantastic with gaskets. Now everything is RTV, which most people over apply. I will pick up another tube of the form a gasket for my 79 when needed.
I liked the 351M. First truck developed an overheat condition, and nothing seemed to fix it. T-stat, hoses, flushes, bypass heater core, new intake gaskets and valley pan, etc. Pulled it and dropped in a 400, no problems. 2nd truck no problems. They both ran good.
My 79 had the same overheat issue (351M) according to the previous owner, so they dropped in a earlier 70’s 460. Love it, lots of torque.
Best of luck with your truck. They are awesome trucks in my opinion. I also own a 2004 F350 6.0 for plowing and my daily driver for the last 12 years is a 09 F250 Super Duty 5.4 - been a highly dependable truck. No engine work at all besides 2 sets of plugs, it has 121k on the clock now. I have always owned a Ford truck, with the exception of 8 years when I owned a 01 ram 1500 with a 318 and 5 speed manual. It was a dog. Cost me alot in repairs over 8 years from new. Traded it in 09 with 66k on the clock. What junk for low miles and never abused. Always owned Fords and I learned my lesson.
Sure, Ford does stupid stuff, but they all do, so I will stick with whats been good to me and what has held up the best - Ford baby! Peace.

[BillyBob-duss]

great vids, im doing another fuel pump learned how to do this a couple years ago watching this vid.

[ShainAndrews]

Just fired up my 79. First issue was gas poring out the back of my edelbrock carb. Fixed that to find my pump shooting gas on the exhaust manifold. Now that I've run a decent amount of gas through the system I think I plugged a filter I installed at the gas tank. Man letting a truck sit for 15 years is a bad thing. LOL

[davideubanks]

Thanks you need a 1/2" line wrench and a 5/8" to hold it. two 1/2" bolts head hold it! I need to get #2 form a gasket though!

[jasonbanuelos]

Thanks for the helpful tip on the install I have been just struggling.

[acscolo]

thanks for the tip about the #2 FormAGasket. I thinks I'll get some tonight.

[bohemialite]

That's good to write dates on changing parts of your vehicle that is a great idea thanks.

[seronuske]

I wonder if it will be that easy for my 81 ford bronco but ya showed me a good way to start . Awesome vid thanks.

[bobhaddock]

Thanks. Good Point..Eng. came out of a 73" mercury.

Are the 73's in a low compression era? if so, what might I do to rectify that, if it is an issue or not?

[bobhaddock]

Have a 1980 F150 4x4 w/ 351M. Have a 1973 400 w/ 60, 000 miles on eng. stand. needs valve job. Is it prettymuch a straight swap or am I going to run into issues? My understanding is I put new distributor in for electronic ignition and good to go. Prob. new oil pump also. will everything hook up ok?

[badderthanyou]

So the pump are goes under the cam lobe?

[danp]

I'd recommend installing a fuel filter between the fuel pump and tank to make your fuel pump last longer. Rust from a tank will destroy the diaphragm in a fuel pump pretty quick.

[henryjohnson]

Thanks for video. What did your shirt have on it? It was blurd out.

[sixtyfiveford]

Hopefully you find a use for it. Thanks for watching.

[olddognewtricks]

Hi, just getting back to the fuel pump.
The previous owner cut the pipe leaving an inch or so from the pump remaining, on the line going from the fuel pump to the carburettor.
So now I am looking for an adaptor that I can fasten in at the fuel pump and then clamp a fuel line to.
Same size connector on the inlet of the fuel pump that is used for the line from the tank. (Which seems to be fixed to the body of the pump).
Any thing come to mind?

[bctruck]

nice job! im looking at a 78 ford fleetside shortbed right now that has no motor. if i can get it for a few bucks, ill do a dependability restoration, and use it as my work truck.

[sixtyfiveford]

Mistakes are made to often it seems. Thanks for watching.

[sixtyfiveford]

With gas prices the way they are people seem to be giving these old truck away for a song.

[MattsRageFitGarage]

I had a huge tube of tat #2 gasket crap, but I threw it away lol. It was the crappiest stuff I have ever used, my dad used to be a automotive mechanic and he said he never once saw that crap work, fluids would push it right out of the way and leak instantly.

[MrDannylopez]

did you have trouble putting in? did you have to force it in or did it go in smoothly?