Replacing/Rebuilding a 95 4.6L V8 - TCCoA Forums
 
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post #1 of 12 (permalink) Old 08-24-2004, 12:32 PM Thread Starter
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Replacing/Rebuilding a 95 4.6L V8

I've got a 1995 LX with the 4.6L V8 with an auto tranny. It's got 162k on it and uses about 2-3 quarts of oil per oil change. I've done some checking here in Southern Illinois and I've been told that only 95 motors will work in my car (and I haven't found any of them in the area), and that swapping a Mustang, F-150 or Crown Vic motor would be a ton of work (complete rewiring of the car), plus a rebuilt motor would be around 2500-5000 dollars and that no one in the area can rebuild my 4.6.

I've got 2 questions
1. What are my options for doing an engine swap/engine rebuild?

2. Is there any way for me to find a good rebuilt or new engine for a reasonable amount of money? I can only spend around 5k for the project.

I hope you guys can help me out.

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post #2 of 12 (permalink) Old 08-24-2004, 12:35 PM
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02 explorer swap, it reuses the motor mounts and there are a ton of articles about it

they can be found cheaply and are fairly easy to do(i have read)

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post #3 of 12 (permalink) Old 08-24-2004, 12:36 PM
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I am guessing your valve seals are probably shot. Common problem on these motors, they are regularly seen going over 200k with regular maintanence despite there oil consumption.

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post #4 of 12 (permalink) Old 08-24-2004, 01:23 PM
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Quote:
Originally posted by Will3799
02 explorer swap, it reuses the motor mounts and there are a ton of articles about it

They can be found cheaply and are fairly easy to do(i have read)
I'll have to second that. From everything I've researched, the best bang for the buck AND ease of swap is the explorer engine.

First, you don't have to break into the engine (which on a 4.6L you don't want to do because almost every bolt can't be reused. ) since you can usually find low mileage engines for a good price. And second, there is a lot of information here about the swap. Granted, with a 94/95 there are some more things to get than for a 96/97, but nothing outrageous.

But the first thing I would do, is find out exactly where the oil is going. I have 269K miles on my 94 and it only uses about 1.5 quarts per 3K miles. But when it was leaking, from numerous places, it was about a quart every 1K miles.

Before you write off the existing engine, have a bleed down test done on it to see the actual condition of the internals (rings, valve sealing, etc.) unless of course, you have the money to drop for the new engine.

Oh, and shy away from the person telling you “ton of work (complete rewiring of the car)” because it isn’t that big of an issue.

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post #5 of 12 (permalink) Old 08-24-2004, 01:46 PM
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I have a couple 03 explorer motors at the shop I work for. I can get you a price if you are interested. They are 4.6v8 with aluminum block and PI heads/cams.

JH
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post #6 of 12 (permalink) Old 08-24-2004, 01:59 PM
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Quote:
Originally posted by V8Tsunami
I've done some checking here in Southern Illinois and I've been told that only 95 motors will work in my car (and I haven't found any of them in the area), and that swapping a Mustang, F-150 or Crown Vic motor would be a ton of work (complete rewiring of the car), plus a rebuilt motor would be around 2500-5000 dollars and that no one in the area can rebuild my 4.6.
Dang, I hope all the Mustang/PI engine swappers don't find out about that. They'll be really disappointed.

Don't feel too disappointed though, that just shows that your mechanic doesn't know 4.6L Fords. Stick around here and you'll learn a ton about these cars.
My car uses about 1 qt every 1000, but my oil pan gasket needs to be swapped out... 118k here.

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post #7 of 12 (permalink) Old 08-24-2004, 03:05 PM
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Any 4.6 2 valve can go in there, you just reuse the stock intake. You might have to tap in a freezout plug to close off the one coolant port at the back of the passenger side head. When my buddy and I did mine it was from the top. Looking back at it, I think it might have been alot easier to drop the front end and take it out the bottom. While you have it out don't forget to do the front pump seal on the tranny and while your at it do the flex plate and convertor.

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post #8 of 12 (permalink) Old 08-24-2004, 03:16 PM
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I would guess valve seals also, and maybe a leak. One quart of Lucas oil additive with 4 quarts of your favorite oil should stop or at least slow it down quite a bit. My engine had 161k on it when I did the 02 explorer swap. When I tore it down, it was still in great shape; no ring groove, timing chain tensioners still had more adjustments, etc.

If I hadn't dropped a screw in the intake, which the engine then ate, it would still be running strong.

And yes, the 02 explorer swap was alot easier than I expected. Basically, you tear the engine down to block and heads, and bolt all your 95 stuff to it. The intake will be a PI, so you need to swap the stuff that goes on the intake to a 96/97 style.

Do a search on my name and you will find lists of parts to reuse from the 95, which to use from the explorer, wiring changes, etc.

I'm reading on here all the time, so I'd be able to help anytime.

Rob

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post #9 of 12 (permalink) Old 08-24-2004, 07:09 PM Thread Starter
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Where can I find the articles on the swap, I'd like to find more information about that.

As far as my mechanic, I haven't had any problems with him or the dealer. He's always treated me fairly and hasn't overcharged me. He even put on a fan belt on without charging me labor. But as to how much he knows about 4.6's, I couldn't really say.

My trouble is that even though I know cars, I don't have the tools or the knowledge to rebuild one........yet. My father has rebuilt a few motors, so let's just say that we can handle a 302, but a 4.6 is a whole other story. So I guess the question now is what books could I read and what tools would I need? I want to be confident when I do this.

Either way I want to find a solution so I can keep Miyoki. She's been so good to me over the years that I just can't part with her. Plus there's nothing new that I can actually afford that I want, other than maybe a used F-150, and for now I don't want to drive something that slow....or normal

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post #10 of 12 (permalink) Old 08-24-2004, 10:01 PM
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I am up to 193K and I used to lose about a Qt. every oil change (10K interval w/ Mobile 1). I thought it was the oil pan gasket, BUT when I swapped tranny at 185K I replaced the rear main seal which was cooked and literally came apart from the retaining part. Now it is more like 1 pint at 10K which ain't bad.

My $0.02

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post #11 of 12 (permalink) Old 08-24-2004, 10:27 PM
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justinh how much for the 02 block with the pi parts on it?

Quote:
Originally posted by JustinH
I have a couple 03 explorer motors at the shop I work for. I can get you a price if you are interested. They are 4.6v8 with aluminum block and PI heads/cams.

JH
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post #12 of 12 (permalink) Old 08-26-2004, 07:11 AM
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Quote:
Originally posted by JustinH
I have a couple 03 explorer motors at the shop I work for. I can get you a price if you are interested. They are 4.6v8 with aluminum block and PI heads/cams.

JH

I would be interested in getting a ball park figure.

Thanks

Tony

Tony McColl
1994 LX 4.6L
New motor as of Aug 1st.
No Dyno Numbers yet.
Just two runs at 5800 ft.


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