anyone with an electric fuel pump installed in their 300sd?

[Cejpat]

Kent over at Mercedes Source recommends a Walpro unit.

Am wondering about owners' experiences?

[WMO Madness]

Originally Posted by Cejpat

Kent over at Mercedes Source recommends a Walpro unit.

Am wondering about owners' experiences?

I removed the mechanical lift pump so I can use the cavity to return oil to the crankcase from the centrifuge oil filter and replaced it with an 10-15 psi electric fuel pump. Works great, this is on a 1984 300D.

[oldsinner111]

I had one to push diesel,and veggie.Lost a contract don't have money to replace a new one
Though mine lasted 1 year,the Walbro unit break down also.There only one pump built for veggie and its a FASS

[altruego]

I use a Carter electric pump that is mounted in the truck. I think it's rated at 18psi. Works great. Took me a while to find a good pre filter. The paper filters had a tendency to collapse and restrict flow.

I used the small 100 micron pre-filter from this site. Works great and is can be back flushed to clean.

RobbMc Performance Products - Fuel Filters

I have an 82 300SD

[kestreltom]

I am using a Ford horizontal fuel conditioning unit (HFCU). I found a few at the local scrap yard for 5 bucks ea. This is the fuel pump found on Ford Powerstroke 6.0 trucks. This unit is nice because it comes with a 10 micron primary filter, a thermostatically controlled fuel heater, a pressure regulator, and a drain plug. It is designed to deliver 50-60 psi, but works just as well at lower pressures. The unit is quiet and draws about 3 amps.

t

[BenzDieselTuner]

Originally Posted by kestreltom

I am using a Ford horizontal fuel conditioning unit (HFCU). I found a few at the local scrap yard for 5 bucks ea. This is the fuel pump found on Ford Powerstroke 6.0 trucks. This unit is nice because it comes with a 10 micron primary filter, a thermostatically controlled fuel heater, a pressure regulator, and a drain plug. It is designed to deliver 50-60 psi, but works just as well at lower pressures. The unit is quiet and draws about 3 amps.

t

this i find very interesting.....so all i have to do is pull such a unit at the pick and pull yard, and hook up fuel lines and 12 volts + mount it, or is it more complicated than that ??

like i said, highly interesting...

i would like to more...

[MTUpower]

Is there an advantage of using one for pump diesel?

[Simpler=Better]

An electric pump makes priming the lines a breeze

[winmutt]

Any why would you need an electric pump outside of bleeding lines which isnt that hard either? I mean, I know why you would, but I would be surprised if anyone in here really needed it.

[kestreltom]

I rebuilt my lift pump as part of a general strategy to try and find the cause of a slight idle lope. I have noticed a little air in the fuel return line with the original pump as well as the electric pump, but I am beginning to think that a small amount of air is normal.

After replacing and balancing the injector nozzles (Monark), doing the valve lash adjustment, and replacing the rack damper, I am beginning to think that internal wear in the IP is the cause of the idle lope. The engine runs smoothly when off idle or under load.

I am also thinking about building a WVO system for this car, and a powerful electric pump is important for this.

[winmutt]

Originally Posted by BitterCreek

No fuel pressure pulses causing idle vibrations? Constant pressure supply at all loads and speeds?

Does the mechanical pump fail to provide enough fuel? Doesnt the over pressure valve regulate vibrations?

[winmutt]

And who's running a modified pump?

[oldsinner111]

when i had a boost pump I believe, my mechanical pump didn't have to work as hard pumping fuel,and thats why I had more power,and 1 mpg better mileage.
I could charge up and down mountains with ease passing eveything in my SD.If you notice most new car don't climb as fast as 1970 cars.my pump was 12 psi carter electric pump.

[winmutt]

Originally Posted by BitterCreek

Many people. I have a custom 7mm M-pump on my 300D and there are dozens of people in Europe and Finland. America is far behind the times.

And with 7mm you needed an electronic lift pump? What kind of power you turning?