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Benfolio
11-12-2009, 10:59 PM
Started with a Phase I EJ25D out of what appears to be a "BG9" based off what was written on the belt cover.
"Around 60k" and already tapped for an EGR, it was a better base for putting in headgaskets and whatnot than my tired old motor that's been overheated a few times and has 165k on it.

Here's what it looked like after I unwrapped it from the shipping pallet:
https://sl-i.net/FORUM/images/imported/2009/11/1026091300-1.jpg

Stock plastic separator:
https://sl-i.net/FORUM/images/imported/2009/11/1026091352a-1.jpg

EGR hole:
https://sl-i.net/FORUM/images/imported/2009/11/1026091352-1.jpg

Beginning the tear down:
https://sl-i.net/FORUM/images/imported/2009/11/1028091620-1.jpg

Making room for new water pump, oil pump o-ring, front crank seal, and oil pan re-seal:
https://sl-i.net/FORUM/images/imported/2009/11/1106091556-1.jpg

New parts installed. USDM water pump is different from JDM pump, and timing cover later had to be trimmed to fit:
https://sl-i.net/FORUM/images/imported/2009/11/1106091912-1.jpg

New style separator plate and new rear seal installed:
https://sl-i.net/FORUM/images/imported/2009/11/1106091940-1.jpg

Reassembled with new HG's and cam seals:
https://sl-i.net/FORUM/images/imported/2009/11/1111091850-1.jpg

Timing belt installed:
https://sl-i.net/FORUM/images/imported/2009/11/1112091658-1.jpg

All buttoned up awaiting install:
https://sl-i.net/FORUM/images/imported/2009/11/1112091859-1.jpg

Hopefully will be installing this weekend, I will update when I do.

Benfolio
11-13-2009, 11:52 PM
Started tonight. In about two hours (taking my time, no need to rush. YET) I had this:

https://sl-i.net/FORUM/images/imported/2009/11/1113091910-1.jpg

Pulled the old motor, and yanked the intake to swap it to the JDM motor. Found out that since I did a fuel cleaning service abooooouuuut 10k miles ago, it STILL looks damn good in there!

https://sl-i.net/FORUM/images/imported/2009/11/1113091942a-1.jpg

Got to make sure I do it on the JDM motor too. Its a little carbon'd up.

Was going to get to the point of having the JDM motor all together to swap it in tomorrow (didn't want to stay at work past 9), then tore an intake gasket. :smt013
Will get new ones tomorrow.

Benfolio
11-14-2009, 10:22 PM
Since I tore the intake gasket I put the motor in today with is lying on top of the block.

Which meant I missed screwing in the EGR tube to the port that it already had on the head (but shouldn't have).

So it was kinda loud when I first started it. Then the lights started flickering and the JDM alternator crapped out. Swapped in my old one, purged the air out of the P/S system, and fixed a leaking throttle body coolant hose and all was good.

https://sl-i.net/FORUM/images/imported/2009/11/1114091435-1.jpg

Drove it home, no problems.

It does seem a bit down on power.... that or it's just smoother. My old EJ25 felt torquier off the line, then at 3k RPM or so it was like VTAK JUST KICKED IN YO. Maybe the JDM motor is just smoother (sure idles and cruises smooth!) in its power delivery?
I didn't really get on it, gonna drive it nice until I'm sure all the bugs are worked out. If there are any....

Soul Shinobi
11-15-2009, 12:10 AM
Which ECU are you using? I'm no engine expert, but I know engines made for the states have to take into account how poor quality our gasoline is compared to Europe and Japan. That's why we don't get a lot of Europe's cool diesel cars, our diesel is absolute junk.

Benfolio
11-15-2009, 11:23 AM
Actually running the original '98 EJ22 ECU that came with the wagon when I bought it. It ran my '97 EJ25 just fine, so in THEORY it should run the JDM motor just as well.

New GT
11-24-2009, 10:42 PM
Just a quick question. What seals the separator plate? Is it a gasket, or sealer? Thanks.

Soul Shinobi
11-25-2009, 01:09 AM
Silicone sealant.

EDIT: If you want the official, high quality stuff, a 250g (8.8oz) tube the Silicone Sealant is part number: 004403007. It's called "SUPER THREE BOND 121" and is able $20 (MSRP $27.20).

warrior
11-27-2009, 10:27 AM
Not to be an asshole, but isn't this section for write ups? This seems more of a progress thread than "do-it-yourself."

Good job though.. I did this on my BD not too long ago. :)

Soul Shinobi
11-27-2009, 10:54 AM
Yes actually you're right, that was sort of bothering me too but I didn't say anything. :razz:

grt3
01-10-2010, 12:29 PM
good work. I dont think I could ever trust myself to install an engine.

mike-tracy
01-17-2010, 04:17 AM
good work. I dont think I could ever trust myself to install an engine.
It's quite easy. The first time I used a labeler and marked everything, and everything went smoothly with my semi-mechanically inclined buddy.

OP, I found that my 2.5D (US model) really ran bad (rich) when I first started it, using the 2.2 ecu. I'm sure your ECU has learned the motor by now (as mine did eventually) but I put in a 97 2.5D ECU and it ran quite well even with the engine unlearned. Gas mileage is a bit down...(2-3mpg)

jospgut
01-17-2010, 04:23 AM
i did the same thing in my gt, but i had to put the USDM intake manifoild, i have a question, my engine is a jdm ej25, peolple say that jdm engines are ej25d is that right? thats my concern, my engine being a jdm is a ej25, and what is the difference

chris_2.5gt
01-18-2010, 05:54 PM
d is for dohc, not sure about the jdms tho? my 97 LGT is a ej25d and it's usdm well technically cdm.

jospgut
01-18-2010, 06:00 PM
oh i gotta lol, so USDM are EJ25D and jdms are EJ25, my is a dohc though

chris_2.5gt
01-18-2010, 08:16 PM
I don't know if the jdm's are dohc. All I know is ej25 is the official term, no matter if it is dohc or sohc. people just add the d to the end to make it clearer same as the t at the end of ej20 so people know it's turbocharged. I have the 97 which is phase I and dohc but I heard phase II (98+)is sohc but I don't know how true that is.

Soul Shinobi
01-18-2010, 10:25 PM
http://wiki.nasioc.com/wiki/EJ22#EJ22

Phase II is '99+ for all engines except Legacy and Legacy Outbacks get the 2.5L Phase II one year late ('00+). For 2.2L EJ22E and EJ22EZ are Phase I, Phase II is when the letters at the end change to numbers, same goes for the 2.5L ( EJ25D/EJ25DZ to EJ251/EJ253 in Phase II). I'm referring to the North American market.

mike-tracy
01-18-2010, 11:30 PM
http://wiki.nasioc.com/wiki/EJ22#EJ22

Phase II is '99+ for all engines except Legacy and Legacy Outbacks get the 2.5L Phase II one year late ('00+). For 2.2L EJ22E and EJ22EZ are Phase I, Phase II is when the letters at the end change to numbers, same goes for the 2.5L ( EJ25D/EJ25DZ to EJ251/EJ253 in Phase II). I'm referring to the North American market.

They are asking what is the nomenclature for the JDM DOHC EJ25, not what came in what, right?

Soul Shinobi
01-18-2010, 11:41 PM
Oh. :grin: I just wanted to clear up the use of the character after the displacement (EJ25D vs EJ251), I'm fairly sure those are on the plaques by the left front strut tower and not made up by the aftermarket community.

mike-tracy
01-18-2010, 11:45 PM
Oh. :grin: I just wanted to clear up the use of the character after the displacement (EJ25D vs EJ251), I'm fairly sure those are on the plaques by the left front strut tower and not made up by the aftermarket community.
Well I'm curious too :smile:, what IS the proper nomenclature for the JDM EJ25 "D" motor?

Yamazaki
01-19-2010, 05:01 AM
[quote="Soul Shinobi":uuhqk4il]Oh. :grin: I just wanted to clear up the use of the character after the displacement (EJ25D vs EJ251), I'm fairly sure those are on the plaques by the left front strut tower and not made up by the aftermarket community.
Well I'm curious too :smile:, what IS the proper nomenclature for the JDM EJ25 "D" motor?[/quote:uuhqk4il]
The J-spec 2.5L DOHC engine here for the BD/BG was the EJ25D. There were two iterations of this motor, hence the two different power ratings for the same general motor. The first one doesn't seem to have a name, but the second one was a "master4". It was later replaced by the EJ254 (labeled a "phase2") in the BE/BH models. The 'D' and the '4' represent DOHC engines. The 'N', 'J', 'E', '1', '2', and '3' are all SOHC N/A. Other designators are 'H', '6', (twin turbos), 'G', 'K', '5', and 'X' (turbos); and 'R', '8' (high power twin turbos), 'Y', and '7' (high power turbos). All the turbo models were/are DOHC.
These all have a little more meaning, but this is the basics.

[edit: Going through my "library", I also came across an EJ20C. It's DOHC, but I don't know what 'CNG' might mean...]

And what the hell is an EJ25DZ?

mike-tracy
01-19-2010, 05:37 AM
I've heard of the EJ20C, the one that runs on compressed natural gas.

Yamazaki
01-19-2010, 05:46 AM
I've heard of the EJ20C, the one that runs on compressed natural gas.
ohhhhh *light comes on* , now I get it. "CNG".

Well, I don't have the nomenclature for the Diesel engine since we don't have the Diesel variant here.

mike-tracy
01-19-2010, 06:28 AM
Diesel motor is the EE20. Since Subaru isn"t bringing that motor over anytime soon, THAT would be a front clip i'd love to import.

d1giPhux
01-19-2010, 06:45 AM
Damn.. we should make an alphabetical list of all these. Wikipedia is pretty good for the USDM market ones.. but would def be cool to have a list of USDM / JDM side by side or something. Good info! Great install progress writeup!

Yamazaki
01-19-2010, 08:39 AM
Damn.. we should make an alphabetical list of all these. Wikipedia is pretty good for the USDM market ones.. but would def be cool to have a list of USDM / JDM side by side or something. Good info! Great install progress writeup!

Well, I asked for contributions to my "research" here: viewtopic.php?f=3&t=16637 (http://www.sl-i.net/FORUM/viewtopic.php?f=3&t=16637)

If people would contribute, I could mesh everything together. I have the explanations of what every digit means, I just don't have all the letters/numbers for the digits.

I don't like wikipedia because anybody can edit it. Some guy who heard something from a buddy about a thing has just as much say as somebody who actually has valid information (like say, manuals, catalogues, etc...).


But that's getting off-topic, so I'm going back to my corner...

Soul Shinobi
01-19-2010, 10:29 AM
The NASIOC wiki gets little use and the chances of vandalism are very remote. I've been planning on expanding it at some point. If you compile information there you can setup e-mail notifications if someone else changes it, and who knows, you may meet someone as smart as yourself on the discussion section of your pages. :smile:

1-3-2-4
01-20-2010, 11:25 AM
how thin is that plastic separator? what size torx?

jospgut
01-21-2010, 04:50 AM
haha ej25a ej25b ej25c ej25d ej25e....etc.. just kidding, my engine came with the ej25. us models are ej25d just to explain is a dohc, thank you!!!

racingsforme36
02-27-2010, 02:26 PM
I'm putting my own engine in had the intake off and for the life of me can't find where a wire bolts on. It's got a black either plastic or rubber I forget with a bolt hole through the middle any help? It's under the intake passengers side closer to the firewall. Almost right by the plug for the flywheel bolts you know? Maybe? Lol.