Electric fuel pump q's (lines, filters, pump, mounting etc.)

[Wagoneerlover]

Greetings fellow jeepers,


I had some questions for those of you who installed electric fuel pumps. Could any of you post photos if you have them. First I have an idea, I want to install an inline filter before the electric pump (The pump is external and will be mounted on the frame rail) and I want a filter after the electric pump. Do you think this is overkill? secondly what filters out there are supposed to be top notch? I want something that is really highly regarded and not just going on its name. lastly how did you all route the fuel lines? did you run them up into the engine bay and across to the engine carb and or tbi? or did you actually run them up and over the top of the transmission? (Wouldnt this create heat issues from the trans heating the lines up?) Where did you all mount your pumps etc? Alright fellow jeepers, any help will be appreciated so let the posting begin!!!



P.S. how did you hook the lines into the pump? did you simply use rubber hoses connected to the fuel line? or did you use braided hose? and the same thing for the connection to the TBI or carb. Or did you flare the ends of the hard line and connect directly to the TBI and the fuel pump?

[scantar]

My electric pump is just in front of the skid plate, on the frame rail. I have a filter before the pump...didn't think I'd really need another one after it since there's the big one by the carb. I ran my line sorta kinda stock, but I took it closer to the master cylinder and over instead of up the front side of the engine. Temporarily, unless I can't figure out a better place.

[Wagoneerlover]

so yours runs up the frame rail and besides the master cylinder, then over to the engine components? Like over the side of the engine or possibly behind it and then up to where it need to be connected? (Overtop of the engine like oem)

[scantar]

Over the side and across the top. I can't say I really like it...I just like running it up by #1 exhaust less.

[Wagoneerlover]

have you ever considered running it in the way that the 91-96 jeep cherokees are configured? they run it sort of up to a plate attached to the exhaust manifold then over to the Throttle body for the efi. I am looking into a setup like that.

[budojeepr]

On my Wagoneer I put a solenoid-type pump on the passenger-side frame rail by the rear axle. I chose that location because the stock fuel line is there. I put a filter before the pump; there's also a small one near the inlet to the carb. No other changes to the fuel line. I haven't had any feed issues with that setup.

On my Gladiator with the TBI 454 (not running yet) I put the pump on the driver's-side frame rail with a filter before the pump. I don't have a filter before the TBI. The stock Chevy fuel lines (supply and return, bent to fit my rig) run down the spine of the trans and break off to the side about halfway down. I hope this arrangement works...I think they'll be cooler than they would be if they ran right past the headers. I can't imagine the trans being hotter than the exhaust manifolds.

Edit: pic attached (orange hose is for OBA)

http://www.ifsja.org/forums/vb/attac...d=117716822 1

[screamerdog]

I ran mine (carter) just in front of the steering box on the inside of the fender. I didn't have to do anything other than use the stock hoses and wire everything. I bought the pressure switch cut off but it didn't really work or just not that well so I just put the hot directly to the coil. I also bought the inline fuse setup from summit. The clear filter is immediately before pump and I can see it in the engine bay. Been driving for 2 years now and no problems but I now wished I changed the stock input hose because it is starting to look a little aged and compressing. Good luck!

[AMX factor]

My pump is mounted above the tranny crossmember next to the frame. I run a filter before the pump and another filter before the pressure regulator near the carb. I run the fuel line up the frame rail until the bottom of the firewall then up and over the master cylinder across top of firewall to regulator then straight into the back of the carb. The fuel line does not go near the exhuast except near the base of the firewall. I use a screw in pre-filter and carry spares.

[AdamG]

I have a Hesco fuel pump that I bought to install a fuel injected 4.0 in my old CJ-7. I think it is a 35Psi pump, where do I go to get a regulator for this? And how do I bypass the mechanical pump?
And, and and, what benefits will this give me?
Adam G

[Wagoneerlover]

You would definitely need a regulator for that. 35 PSI is way too high for a carbed application. You can get regulators at many parts houses. try places like summitt racing and other such places. Is the hesco pump an in the tank pump or an external pump? If it is an in the tank pump you will need to install baffles etc as the stock fuel tank does not have them. If it is an external pump then you have no worries in that regard. I am using mine for a Throttle body injection install. I can no longer use the mechanical pump it doesnt put out enough fuel.

An electronic fuel pump has some advantages over the mechanical one. First it will pretty much kill out vapor lock problems (Assuming you had them at all).
Also the electric fuel pump has other advantages which I cannot tell you but the others will chime in soon.


As for blocking off the mechanical fuel pump, you need to get a mechanical fuel pump block off plate. Our rigs use the same block off plate as the big block chevy engines. It should be shaped like a diamond. Purchase one for about ten bucks and remove the old mechanical fuel pump and install the new gasket and the block off plate and it is done. all you have to do then is install the new electric pump and any fuel filters that you want and of course wire in the pump and you are ready to go!

[Don S]

Originally Posted by Wagoneerlover

An electronic fuel pump has some advantages over the mechanical one. First it will pretty much kill out vapor lock problems (Assuming you had them at all).
Also the electric fuel pump has other advantages which I cannot tell you but the others will chime in soon.

..
Wagoneerlover;


An electronic fuel pump will cure some vapor lock problems but not all. Been there, done that.

VAPOR LOCK 101

Adding a New Pick Line to a Fuel Tank

FUEL PUMP, ELECTRIC 101

and several other articles at;

http://groups.msn.com/FSJTECH101/fueladditives.msnw

Have a good one while you can still laugh about it.. Don S..
There was a time when some people got rich buy providing a better product at a lower price.
Now they get rich by ripping us off and paying off the politicians. Can you spell DEREGULATION

[AdamG]

OK Cool stuff. The pump is an external one, meant to go anywhere you please to install it. Paid allot of $$ for it, and never even used it, so happy I may be able to use it on this build...
wheeee
thanky thanky
Adam G

[Hutti]

I ran a Purolator that I mounted on the crossmember just behind the tank with a filter just in front of it (suction side). I did however put a fuel pressure regulator on it and dialed it in to 4.5 PSI. Without that it keept flooding my fuel bowl. The needle valve inte fuel bowl only holds about 6-7 psi max.

my 2 cents,
Christian

[jeepfan93]

MIne is mounted on the frame rail just in front of the skid plate. I bought a Facet pump from pepboys. This is the third truck I've setup like this. Ask Eddiec on here how he likes his, I did that one last year before I sold him the truck. That particular pump has a huge filter built into it. Then ran the stock fuel line all the way up. As posted, Chevy BB block off plate and stock filter before the carb. I did notice on this most recent install, the stock filter isn't working for me. For some reason I need to block off the return to get the same pressure out as going in. So I just put a clear universal non return filter in.

[JeepNOFEAR]

I have a carter on my frame rail. It's load thou.

[waggy401]

I have a Howell system that came with a pump and filter. They look like they are from an early 90s Ch*vy TBI truck, designed to run at 13psi. The filter is huge, and I put it before the pump just in front of the tank. I spliced the filter and pump into the stock metal line with the supplied silicone EFI hose. Then, I cut the metal line just forward of the firewall and ran the hose along the fender - as far away from the headers as possible - then over the top of the engine to the back of the TBI. I haven't noticed any leaks.

The pump is mounted with a single rubber-isolated strap and is pretty quiet. I hear it faintly when I first turn the key, but once the engine is running it's the quietest thing on the Jeep. Sorry, I don't have pictures of the pump.