Fuel Pump - Mechanical vs. Electric??
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Elder User
Joined: Jul 2004
Posts: 920
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From: Westminster, Colorado
Fuel Pump - Mechanical vs. Electric??
Years ago....I had replaced my mechanical FP with an electric model mounted under the cab.....well, that electric one died yesterday....
So, in planning my repair, I am curious, is there any real advantage to using and electric over the mechanical pump?
Also perhaps thinking of replacing them both and putting two selectable fuel lines in....that way, I won't be stuck in 6 years when this happens again....
Concerning the steel fuel line tube that comes into the engine compartment under the steering shaft, what's the best way to clean out any crud that might be in there? Some sorta long brush?
So, in planning my repair, I am curious, is there any real advantage to using and electric over the mechanical pump?
Also perhaps thinking of replacing them both and putting two selectable fuel lines in....that way, I won't be stuck in 6 years when this happens again....
Concerning the steel fuel line tube that comes into the engine compartment under the steering shaft, what's the best way to clean out any crud that might be in there? Some sorta long brush?
Senior User
Joined: Sep 2009
Posts: 130
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From: Edinburg, Texas
I use an electric pump (E8012S) on my truck, the reason is I hardely use it and it kinda sucks when your cranking for 5 minutes to get the fuel pressure up. I worked in auto parts for 5 years and I can tell you that a dirty fuel tank and an inline electric pump dont go together. It will last a few months tops with a dirty tank.
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Elder User
Joined: Jul 2004
Posts: 920
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From: Westminster, Colorado
I use an electric pump (E8012S) on my truck, the reason is I hardely use it and it kinda sucks when your cranking for 5 minutes to get the fuel pressure up. I worked in auto parts for 5 years and I can tell you that a dirty fuel tank and an inline electric pump dont go together. It will last a few months tops with a dirty tank.
Lucky for me, I had holes in my pick-up tube years ago, so I got it fixed and cleaned then....
Lead Driver
Joined: Aug 2003
Posts: 7,592
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From: **** hole San Jose ca.
I've had my truck since 1978. I've put in 2 manual pumps. No, I didn't wait for it to go out. I just kind of try to stay ahead of a road side break downs. Not Like we did when we were young and run tires till they go flat. Thinking, I got as many miles out of the tires as anybody could. I just replace them for cheap insurance $30-40 bucks to keep me motoring down the hwy and I'm a happy camper... orich
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Joined: Nov 2010
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From: North Carolina
All I can say is that I changed from mechanical to electric and I'll probably be switching back to mechanical. It is feeding way too much gas to my motor...the mechanical feeds by the RPM though. So if I were you... I would get a mechanical.
Lead Driver
Joined: Aug 2003
Posts: 7,592
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From: **** hole San Jose ca.
Ah yes I also have a flow through electric push pump setup just pass the gas shut off tank select switch with a power switch as a back up cause, I use to live in the low desert of southern Calif. and did a lot of 4 wheeling by myself and learned to cover my *** when it comes to any possible break downs..
Orich
<a href="http://s103.photobucket.com/albums/m133/orich1/?action=view&current=fuelpumpwithshutoff.jpg" target="_blank"><img src="http://i103.photobucket.com/albums/m133/orich1/fuelpumpwithshutoff.jpg" border="0" alt="Photobucket"></a>
Orich
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Senior User
Joined: Mar 2004
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From: Portland, OR
Running an electrical fuel pump is WAY better than a mechanical.
Pick a reputable quality one (like Carter) and you will never go back to mechanical.
Makes troubleshooting fuel delivery a snap. I hear the electric motor running - I know gas is being pumped to carb. You just never know with a mechanical.
You run out of gas and the temp is very cold - you wont have much battery reserve. With a mechanical your going to have to prime the carb or crank and crank until the mechanical start pushing fuel. With an electric all you need to do is turn the key on for about 3 seconds and the fuel line fills up.
Your carb needle and seat need to be in good condition. If your concerned about too much flow add an pressure regulator.
I don't know much about new cars, but I'll bet most of them come with electric fuel pumps - much more dependable.
Pick a reputable quality one (like Carter) and you will never go back to mechanical.
Makes troubleshooting fuel delivery a snap. I hear the electric motor running - I know gas is being pumped to carb. You just never know with a mechanical.
You run out of gas and the temp is very cold - you wont have much battery reserve. With a mechanical your going to have to prime the carb or crank and crank until the mechanical start pushing fuel. With an electric all you need to do is turn the key on for about 3 seconds and the fuel line fills up.
Your carb needle and seat need to be in good condition. If your concerned about too much flow add an pressure regulator.
I don't know much about new cars, but I'll bet most of them come with electric fuel pumps - much more dependable.
Fleet Mechanic
Joined: Oct 2005
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From: Gainesville, GA
Orich, that's exactly how mine is. If you looked under my truck you'd find the same thing except the pump is round. I lived in So Cal most of my life and went to the desert a couple of times a month to ride motorcycles.
Lead Driver
Joined: Aug 2003
Posts: 7,592
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From: **** hole San Jose ca.
Ive seen and helped many guys who put on high output Holley e-pumps that all had flooding problems. As noted by o/p a regulator is a must. My manual pump pushes 7.1/2 psi. I installed a select pis regulator way back in the 80's and kept it set at 5 psi. But since installing the e-push pump, I've installed a Holley regulator and a electric psi gauge to monitor gas psi in the cab. Some e-pumps still make noise like there working find but have failed also that can fool you thinking it's working..Best to also have a gas psi gauge in-line between pump and carb...my 2cents
orich
orich