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2005 Forester XT 4eat
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29 Posts
Discussion Starter #1
Hi everyone,
Just setting up my first journal for the swap I’m about to do. Currently have an 05 Forester XT with a 2.5 that’s now a paper weight. I’ve settled on the EJ20X swap. Will be moving all the 2.5 accessories over to the new engine, changing out the timing belt, water pump, maybe the oil pump. For the AVCS exhaust side I’m still undecided if I’ll reuse the cams from the 2.5 or just move the existing cams to 55 degrees (2 teeth CCW). Then go and have it tuned.

I’ve read everything I could get my hands onto about this swap and watched enough really badly produced YouTube videos for a life time. So we’ll see if I learned enough to make this happen.
Brandon
 

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2004 XT 5 Speed
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82 Posts
My buddy has done multiple swaps with those motors, with a lot of success!
More or less plug and play, with your intake manifold and turbo setup. Been "re dressing" the motors with fresh t-belt kits, new water and vacuum lines ect.
Going into a single avcs car, just been leaving the exhaust cam sensor unplugged. No need to change heads/ disturb head gaskets and what not.
Hope that helps a bit!
 

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2005 Forester XT 4eat
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29 Posts
Discussion Starter #3
Hi,
Thanks for the advice, I wasn’t planning on tearing the heads off just throwing around the idea of swapping exhaust cams. Will be starting the engine removal today, getting the old motor on an engine stand. Might spend some time cleaning the engine bay as well.
The old motor has a brand new water pump, brand new oil pump and timing belt. The motor literally died a week or two later after all the work. Which makes me think it skipped timing. So we’ll see.
 

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2005 Forester XT 4eat
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29 Posts
Discussion Starter #4
Spent a few hours pulling hoses and wires in preparation to pull the engine. I have power steering and heater core hoses left before I can unmate the engine from the trans. I’m hoping I’ll have time today just get the engine out.

After taking the intercooler off I was hit the smell of gas. Also, found a good amount of oil in one of the intake hoses. The engine is gross and covered in oil so once the motor is out the engine bay is going to need agood cleaning. Under the car is super oily so if I do any suspension work I won’t need to worry about seizes bolts haha.
 

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2005 Forester XT 4eat
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29 Posts
Discussion Starter #5
I bought an ej20y and it came with the auto trans. So now my question is how do I figure out if it’s the same 4eat and what the differential ratios are?
 

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2005 Forester XT 4eat
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29 Posts
Discussion Starter #6
Good day journal and anyone who happens to be reading this.

Finally there’s day light and I got the engine and trans out of my truck and separated. I looked up the transcode which lead me to a form post talking about the use of 5EAT in there Impreza. So needless to say it’s a no go but now I have to research it the 5EAT torque converter will work in my XT.

Anyway here are some progress photos, this part is super easy mostly because everything is so light. I did leave the torque converter attached to the engine but when I pull the engine out of the forester I will be undoing all the flex plate bolts so that the TC stays in the trans. Then when it’s time for install double checking that the it’s fully seated before I drop the engine in.
 

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2005 Forester XT 4eat
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29 Posts
Discussion Starter #7
Nearly forgot to mention. Who ever pulled this motor before exporting it cut the main harness plug off. So the whole harness needs to be swapped out from the original motor as well.
 

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2005 Forester AutoTragic
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22 Posts
Bud, you are over thinking this. I completed this swap in a 05 Legacy GT. Just swap your intake including injectors, tgv, wiring harness and the pcv. Also, swap over the exhaust including the turbo. Hopefully you left your torque converter attached to your transmission. FIRE IT UP. It's that simple. The Legacy has been on the road for 20k plus miles driven by my wife. Army chick with a heavy right foot.

The next step, see if you can source a Japanese ecu and use the twin scroll setup that should have come with your engine. Let me tell you......8krpm is sweet. She pulls away from my 16wrx like it's nothing.
 

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2005 Forester XT 4eat
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29 Posts
Discussion Starter #9
Hi,

that’s the plan to replace the above mentioned items along with timing belt, water pump, oil pump since those are new on the original engine. Though my inner timing cover is broken. I wasn’t really prepared to pull cam gears to fix a plastic cover. If anyone has any thoughts let me know, I’m probably just gonna leave it janky.
 

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2005 Forester XT 4eat
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29 Posts
Discussion Starter #10
Hi,
Original motor is out of the Forester and I checked the timing to see if skipped timing is the cause of the failure. All the timing is on point and the turbo shaft is solid but lots of motor oil coming out. So I’m assuming the Ringland failed.

I was unable to keep the torque converter attached to the transmission, it just wanted to come along for the ride. So I’ll make sure thatI reseat it when the time comes.

Now it’s time to start moving stuff from one motor to the next. Still deciding what I should do with the broken inner timing cover.

also, oil control valve was bent and leaking pretty good on the 20x (exhaust side). So either need a new one or somehow delete if possible.
 

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2005 Forester XT 4eat
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Discussion Starter #12
It’s been awhile since I’ve updated this thread so here I go. First I’ll say I’ve turned this into a blog for a site I started. If anyone is interested in reading reach out.

I have both engines on stands and I have literally stripped both down to the long block. Literally everything needs to be swapped. If it’s bolted down then it needs to be moved from one motor to the next.

I had broken rear timing covers so I bought cam gear wrenches and all new timing covers. Pulled the gears off, replaced the rear covers, put all new belts and pulleys on. I started out by advancing the exhaust 2 teeth CCW to account for the retard when the sensors aren’t hooked up and to give me roughy 55 degrees of timing. Did that and put everything together, turned the motor by hand to make sure everything was fine like the good boy I am.

Well, it’s not fine. I only got half a turn in the crank before it comes to a dead stop. I think I put to much advance so I lined all the marks up to stock and get the same results. Now back to the drawing board. Here’s some pictures of you wanna see what I’ve been up too.
528832
528833
528835
 
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