How to Install a Mechanical Fuel Pump on Chevy Small Block - Original Version

[musashidtr]

I installed one on a 2001 Silverado today. My brother taught me a fast easier way. Instead of removing the tank, I took a few bolts off 8 of them to be exact the ones that hold the cab. I unscrewed 4 on one side and loosened 4 on the other side. This allowed me to tilt the cab where i placed a jackstand to hold the cab then rigth away i changed the fuel pump and put the cab screws back together took about an hour saved so much time

[MudRFunR]

@musashidtr I've heard of that before fro replacing an electric pump Sounds easy enough!

[Justmack69]

Great vid Hello. I got a 76 olds omega. Just dropped a chevy 350 sb into it. Suddenly my fuel gauge I not working. My old fuel pump is 3 lines but the chevy is 2 lines. Could the return line be causing the issue. Help please. 

[MudRFunR]

@Justmack69 Not a chance that the retun line would cause this. The most common problem with fuel gauges is the ground wire from the tank. There should be a ground from the tank to the frame. Check the connection at the frame.

[MegaChevy65]

@Justmack69 its most likely the sending unit that would cause that or the guage itself the ohms might be different as well between the sending unit and the guage. Those are the only three things that I can think of. I have the same issue but mine was the sending unit being stuck (easy fix) read full when i was empty.

thanks for the vid. im doing this today on my 65. looks easy enough...but every time I say that then its not lol.

[UNIVERSALCONSOLE]

So do you know how to test these?

[MudRFunR]

@UNIVERSALCONSOLE Not sure exactly but sometimes the pump will leak from a hole in the casing. If it leaks the diaphram is ripped. You could check the fuel pressure. It should probably be around 7psi, (just my guess). sometimes when a mechanical pump starts to go it will lose power when you rev it but only after it warms up.

[UNIVERSALCONSOLE]

@MudRFunR

Thanks for reply

The reason I ask is because for some reason our carburetor didn't receive any gas so we bought an electric one and also replaced the fuel pump but it still doesn't get any gas.

[MudRFunR]

@UNIVERSALCONSOLE Have you had the tank off? Are the lines hooked up to the right line from the tank? Is there a leak in the line? (this can cause it to suck air) I've even seem the line inside the tank broken or cracked, also causing it to suck air. Hope this helps!

[mario63chevy]

should've used wheel bearing grease

[MudRFunR]

@mario63chevy I've never had any luck doing it that way.

[goesfastandfar]

Great video. That's a big job! Is there no such thing as a fuel pump "rebulid kit" anymore? Maybe it's not worth it to replace the gaskets, plunger, springs, etc. I removed an AC Delco pump yesterday from a Studebaker that needs rebuilding and wonder if these kits still exist. It's a mule of a job to reinstall as there's no room to work. Anyway, good well-explained video. You should do more of these...........

[brucekirk89]

mine quite today damnit LOL

[MudRFunR]

@brucekirk89 How's your pump coming along?

[brucekirk89]

@MudRFunR apreantly i ran out of gas guess my gauge is broken,,i put a can of gas in it and it started right up??how do i tell if its the gauge or sender unit

[MudRFunR]

@brucekirk89 Good question, but I don't have an answer for you. I do know that the gauge won't work if the ground wire for the tank isn't connecting. Aside from that I don't know how to check it.

[brucekirk89]

@brucekirk89the gauge works just not the right level it goes all over the place

[sunnya527]

Awesome looks exactly like my set up. Love the tips and tricks for sure! Maybe good no one will be taking a video of me hanging over the truck lol ( or maybe cussing a bit )

[MudRFunR]

@sunnya527 Hangin over the truck, like me?

[sunnya527]

@MudRFunR lol yes.. but let me just say.. mine did not go as well or as fast :)... it is in just not as glamorous as yours was.

[caseymyhro]

You sir are a lifesaver! Great video!

[MudRFunR]

@caseymyhro Thanks, we post a "how to" video every other Thursday!

[dwetick]

I currently have a fuel pump replacement issue on my 305 GM engine in a boat. Now, watching your excellent tutorial maybe I can find out why no fuel is being pumped.

That plunger may the problem! Will advise...

[longchak]

outstanding vid, helped me out alot with my el camino

[MudRFunR]

@longchak Thanks, much appreciated!

[the1thatgotirwin]

imformational

[MudRFunR]

@the1thatgotirwin Thanks, I try!

[kenzo5716]

Great video! I got one on my 85 Silverado just like it with the vent connection. Man, i think the part I'm dreading the most is having to kneel on that dang bumper for any length of time. OUCH!

[MudRFunR]

@kenzo5716 Sometimes a job is easily done but it's the position that you have to be in to fix it.

[bowtau9]

Gr8 vid bro , this help me much i was going to install an electric pump , but now im going to keep the mechanical 1 in my 71 chev c10 with 350 sb . Thx for posting , I will be replacing pump soon due to your vid ....

[MudRFunR]

@bowtau9 Thanks, if you are using an electric pump on a carbed engine you also have to install a fuel pressure regulator. Electric pumps usually have more than the 6 - 10 lbs needed for a carb.

[78willoughby]

loves the videos, keep em comin :)

[MudRFunR]

@78willoughby Will do!

[kaleabercrombie92]

this video helped change my fuel pump so much. preciate it man.

[cmcamaro96]

I cannot find a fuel pump like that with the vent tube, I need one! What year and model is that pump for? Thanks

[MudRFunR]

@cmcamaro96 The engine is a 327 inside a 76 Malibu block. I'm not sure but I think I asked for a pump for a 76 Malibu. Hope this is it.

[Diabloshell]

@cmcamaro96 i got a pump for my 82 chevy and it had a vent tube

[Bertziethegreat]

Is the fuel pump located in the same place on a ford? Cus I'm pretty sure my thunderbirds fuel pump is going to shit.

[caffeineaholic99]

Thanks for posting this! It'll help me with replacing mine on my '85 Caprice today.

[MudRFunR]

@caffeineaholic99 Let me know how it works out for ya.

[caffeineaholic99]

@MudRFunR I had no problems, overall it just took some time. Thanks! (sorry for very late reply lol).

[MrKelvintatum]

is electric fuel pumps better

[MudRFunR]

@MrKelvintatum

Mechanical pumps are much easier to replace but fuel injected engines require more fuel pressure than carb engines. Most anything injected has an electric pump because they have more pressure than a mechanical pump.

[abtopgun101]

you said on GM motors they will have that rod... im bout to head down to my 68 thunderbird... will it have that rod???

[MudRFunR]

@abtopgun101

The Chevy fuel pump has a rod that runs off the camshaft. Some engines are similar but have the rod running off the crankshaft. Not sure which setup you have but it should be similar. What engine is in your T-bird?

[abtopgun101]

@MudRFunR the tbird has a 460 in it... i dnt knw how my grandpaw got that... but it is no doubt a 460... love it

[MudRFunR]

@abtopgun101

Did you find out if the fuel pump has a similar setup? I'd like to know.

[abtopgun101]

@MudRFunR oh yea... it was pretty much the same thing just placed a lil farther back... thanx man helped alot...

[MudRFunR]

@abtopgun101

Anytime, glad to help!

[bigbear587]

That looks alot easier replacing it from the top I have a 79 chevy van I've replaced the fuel pump 2 times both times laying on my back on the ground its a job. nice video

[MudRFunR]

Alot of things are easy on this truck. I had a V8 S10 and every winter I took the engine out to clean it up. The fuel pump had to be removed to get the mount bolt out. Everything was a tight squeeze!

[GopherDunes4x4]

is this the new or old motor

[MudRFunR]

This is still from my old engine. Will be getting new engine in a couple of weeks.