electric fuel pump conversion

[rockyklg]

i did a search on electric fuel pump conversions and couldnt figure out what to do with the return line. i will probably run a regulator in the future but for now can i just plug the end of the return line??

also, any good ideas on where to mount it? was thinking on the PS inside fender.

thanks

 

[philos1]

placement depends on whether the pump is "pusher" or "puller" type- pusher nearest to tank, puller nearest to engine (IIRC)... I beleive that you should not plug the return line as it can possibly damage the pump? maybe just run some fuel hose back to the tank until you can get some hard lines in there.

 

[60wag]

What's the advantage of an electric fuel pump?

 

[rockyklg]

philos- i am wondering about the existing return line. the electric pump doesnt have a provision for a return line. and i am not sure about it being a pusher or puller but i think it is a pusher. the instr. say to mount close to tank... dont really understand the difference tho. thanks

60wag- the only difference to me is that i could source an electric pump anywhere and the stock pump could be more of a pain. not to mention my pump leaks oil... got the block off plate from maf. also a small theft deterent with a well placed and unlabled fuel pump switch...

 

[philos1]

gotcha. in that case, then yeah, i think you can just plug the old return line.

 

[Man Jerk]

For a while I ran an electric pump. My mech pump bit the dust and while waiting for a new pump I threw in an elec to get me by. I believe the figure you want to look for is a pump that puts out 4.5 to 7 psi. I just plugged the return.

It still threw too much fuel into the carb. I ordered a regulator from summit http://store.summitracing.com/partd...925239+4294839053+4294880914+115&autoview=sku
and turned it down to 2 (I think) and had good luck.

That being said, there is really no reason not to use the mechanical pump. Toyota parts are of top quality and no aftermarket elec pump will be better. I left my elec pump mounted in the engine bay ready to hook up at a moments notice if needed just as a back up.

I mounted mine on the passenger side inner fender. Just drilled a hole and threw a bolt in there. I have the hoses still on it plugged with bolts.

 

[roscoFJ73]

philos- i am wondering about the existing return line. the electric pump doesnt have a provision for a return line. and i am not sure about it being a pusher or puller but i think it is a pusher. the instr. say to mount close to tank... dont really understand the difference tho. thanks

60wag- the only difference to me is that i could source an electric pump anywhere and the stock pump could be more of a pain. not to mention my pump leaks oil... got the block off plate from maf. also a small theft deterent with a well placed and unlabled fuel pump switch...

The mechanical pump can be sourced from any dealer and is cheap these days.
My first one lasted 170000 miles before it begun to leak but it still worked ok.
I would replace the mechanical pump and maybe keep a electric pump as a "get home spare" but I doubt you will need it for a few years

You can ave a fuel cut valve instead as theft deterrant.

 

[Cruzerman]

I think electric pumps are inherently much less reliable than a mechanical pump. I personally would not do the swap.

 

[rockyklg]

yeah after thinking about it a little more i think i will just fix the oem pump and install the electric as back up. thanks for the advice guys

 

[Dynosoar]

Redundant systems make for reliability. I have always run two fuel pumps (1 mech. and 1 Elec.). For a carbed engine like the 2F a small "facet" pump is the way to go. They are common in the VW world. I have run the mech. pump on my race car for years (1-1600) and the elec pump in line as the back up. A flick of the switch and your back on the road. In addition, it is great to use to prime the carb if the vehicle has sat unused for a while.

Dynosoar