EA MPFI swap - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

CLEVELAND JUNKY · 03-14-2003, 15:53

I have a question regarding the EA MPFI motors.
One of my mates is selling his EA1 fairmont Ghia complete with a blown motor for the sum of $500, so.... i have playing around with the idea of buying it and replacing the motor

.
I was wondering if there are any other 3.9 motors from a different model, like the EA II, EB or later model motors that would be a better choice and more reliable that i could bolt in and use without changing the computer?
Any help would be appreciated as i know sweet F/A about the EA series

AUII_Forte · 03-14-2003, 16:22

Your choices are another 3.9, a 4.0 out of an EBII or later or a 5.0 V8. If you don't want to change the computer, you'll have to stick with the 3.9. Going to a 4.0 is simple, it's only a matter of unplugging the 3.9 ECU and hooking up a 4.0 ECU.

mongrelEB · 03-15-2003, 03:29

The 3.9 is a bloody good motor and only has about 50 ml displacement difference to the 4L. Personally I run a 3.9 and it goes bloody hard - running a 4L cam and EA multipoint it was outrunning EB 4L multipionts which were the same otherwise.
Later 3.9 motors are exactly the same, if it was my car I would be looking at rebuilding the existing motor. These things can go just as well as the 4Ls for the same money...
Anyway my 2c. Good luck man!

carazy · 03-15-2003, 20:36

they go just as hard because the cars that the 4.0L come in are heavier.
But yeah I think you'll get better value out of rebuilding a tuffer motor rather then getting a second hand one.

CLEVELAND JUNKY · 03-16-2003, 08:47

Yeah you are probably right about rebuilding the old motor.
I don't quite now how much damage the motor has, but my mate said he was sitting on 180 for a while, then when he slowed down the motor started to run rough(would not idle) and after stopping it, it would not start.
It was later found that there was water in the oil, so he decided it must have been the head gasket and proceeded to replace it.
After replacing the head gasket, the f-ing thing still wouldn't start, he took it down to the local mechanic, they did a compression test and found less than 50 PSI on all 6 cylinders(****!).
So i really don't no what is wrong, but the mechanic seemed to think the rings were all melted, i find it hard to believe that all the cylinders could all go at once, is that common?
I was thinking he could of ****ed up the head gasket install or maybe even worse a cracked block.
If i did go the 4.0 swap, i would have to swap the whole motor, manifolds & shit right?

CLEVELAND JUNKY · 03-17-2003, 10:22

Bump

carazy · 03-18-2003, 05:02

no you can just swap the block and head like I am at the moment on my dads EA. Some people will suggest you run the newer computer and all that crap as well but there isn't enough of a differance to warrent it.

Moran · 03-18-2003, 18:01

I have an 1996 EF 4.0l in my Fairmont Ghia we just bolted the ea Injection on and changed fron puller / waterpump etc the only real problem is the timing cover there is a raised spot on the EF on that the crank position sensor goes that causes the A/C idler puller to sit 1/4" forward. so the cover either has to be filed down or replace with an ea- ed Timing Cover. I know I am going to get questions about why I didn't convert to EEC 5 the reason is I didn't have the engine loom and the Inlet manifold had a close encounter with a power pole. causing serious damage to the manifold.

mongrelEB · 03-20-2003, 03:19

If ya putting the EF motor in, why not stick w/the EF manifold???
It'll work better ya know, sure you wont get the broadband function, but it still goes harder and cheaper!
It is all just bolt-in, the plugs fit and all!

CLEVELAND JUNKY · 03-22-2003, 05:47

Quote:

Originally posted by Moran
I have an 1996 EF 4.0l in my Fairmont Ghia we just bolted the ea Injection on and changed fron puller / waterpump etc the only real problem is the timing cover there is a raised spot on the EF on that the crank position sensor goes that causes the A/C idler puller to sit 1/4" forward. so the cover either has to be filed down or replace with an ea- ed Timing Cover. I know I am going to get questions about why I didn't convert to EEC 5 the reason is I didn't have the engine loom and the Inlet manifold had a close encounter with a power pole. causing serious damage to the manifold.

Hey moran that's great, thanks man! That was sort of my plan in the first place, get a good late model motor(much easier to find than a EA motor), bolt it in, bolt on the injection & shit = good replacement motor.
I just wasn't sure, that's why i asked here first, thanks again!!!