I'm growing tired of the Edelbrock carb on my 79 F250. I have gas in my oil and now I have to find my problem. I know it could be something other than the carb causing the issue. I want to swap for an injection system. How much of a pain will this be? I understand the electrical is an issue but a new harness can fix that. Has anyone done this?

 

You're right, it's not the carburetor. The fuel pump is pushing fuel into the crankcase. Don't run it until you replace the fuel pump and change the oil afterwards. This is a short-term issue that is unrelated to fuel injection that needs immediate attention (not sure what it has to do with the thread). Converting to fuel injection would be a longer-term goal.

Your question "how much of a pain will this be" is kind of open-ended. Of course it's a lot of work, but what are you comparing it against? How are you planning on doing this? Some people opt for an aftermarket conversion kit; others opt to swap in a fuel-injected motor. Both have their tradeoffs in terms of time and cost. There are a lot more things to think about than just a wiring harness; there is also the computer, all the sensors, and redoing the fuel system. Note that there is no "drop-in" wiring harness; whatever you end up running will require some adaptation to your current vehicle. I'm not trying to sway you from doing this, but instead trying to make it clear that the "pain level" is objective and completely relative and there's more involved than swapping a wiring harness.

Lots of members have done this, who I'm sure would be glad to share their work.

 

Dlanders, what engine do you have in your truck?
If you are thinking about a factory EFI swap then it might not be available for your particular engine.
If you are going aftermarket then you have several options.
First, fix the existing fuel pump problem and see if that makes you happy, then investigate your EFI options.

 

The truck has a 400. Im leaning towards an electronic fuel pump.
I was really wanting to know if anyone had swapped with an engine already equipped with fuel injection. When I bought the truck, the previous owner said the engine had been bored .60 over. There's no room for improvement. I'll just run this engine for a while but I really want to go fuel injection.

 

Sounds like you're looking for a reason to put in an EFI motor. I understand, I have justified some pretty ridiculous shiat to myself before.
Get a Rolled over donor truck with something modern like a 5.4

Like these guys say, fix the fuel pump first. I had a POS edelbrock 600 (1406). Didn't like it. even went through completely once and fiddled with jets needle and springs. Im not a carb guy, or at least not a very good one. There are tons of people that swear by the edelbroke carbs, reliable, easy to work on, no leaky seals. I dunno, musta got a dud. It was from ebay, probably just whipped.
I just installed a 650 holley vac sec, work great, love it.

Another thing I heard about the edelbrocks is they do not like too much fuel pressure. like 5-6 psi max. I say that because if you go Electric fuel pump, be sure it has a regulator, or get one with it. Edelbrock makes a great mechanical fuel pump which one would believe has the pressure set of the thier own carb. I used to push electric fuel pumps but they tend to be a bigger PITA then a good mechanical.

But like FMc400 suggests, check that fuel pump out. typically when the diapham leaks it can leak fuel both to the outside of the pump and internally to the crank case. thus filling the oil with fuel. a good back fire and the whole thing is a combustion chamber.

 

I'll feed the fire....... C'mon .... go EFI. It is easier than ever... Do it. :

I'm planning on this for my 73 4x4....


I low-bucked alot of my parts so I can justify a splurge.....Here's what I got me for Christmas for my 70 but the bad part is that it is still on back-order. However, I did get a cool-azz Edelbrock embroidered jacket for (still) waiting:

 

I think you're right. I'm just looking for a reason to yank it and go to a late model engine. As far as the electronic fuel pump, Carter has one that doesn't require a regulator. The mechanical pump is two weeks old. Damn faulty parts.

 

Don't do the electric pump, Your mechanical pump diaphragm is just going bad. Electric pumps can vapor lock and leave you dry.

I tossed my elderbrock and went back to a 600 holley. You can install a air/fuel gauge and tune it perfect.

Keep it simple for the old truck, Unless you building some high HP beast.

 

drooling all over myself.

 

I can see why...