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View Full Version : NEED HELP JDM EJ25 engine swap


boxingfanatic
10-08-2009, 05:41 PM
ok i bought a jdm engine to replace my blown motor from my legacy outback wagon 1998 ....
-replaced the intake manifold and all sensors plug in no problem
-valve cover gasket = USDM - has different gasket but i modified it by cutting some part to fit
-WATER PUMP = totally different, JDM - has their water outlet on the side. USDM- water outlet on the bottom . Has anyone tried to replace their waterpump and used USDM WP in their JDM engine. it looks like it would fit,

...... NEED your help guys.. need to get my subbie back on the road.. thanks again...
evolegacy
10-08-2009, 11:02 PM
when i swapped mine out for the same reason, but everything matched up fine for me. I have a 98 GT and swapped the US EJ25 for the JDM EJ25, only thing i had to do was drill and tap a hole into the block for the EGR pipe for emissions BS, you sure its an EJ25?
boxingfanatic
10-09-2009, 01:12 PM
Hey thanks for reply... I'm sure it's ej25.... Not to sure what year it came fro
though....someone had mentioned that some years have different waterpump and timing belt tensioner... Just wanted to make sure if they bolt up
boxingfanatic
10-11-2009, 07:56 AM
anyone else?
boxingfanatic
10-13-2009, 08:42 AM
here are pics:
https://sl-i.net/FORUM/images/imported/2009/10/IMG_0178-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0179-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0180-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0181-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0182-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0191-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0183-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0184-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0185-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0186-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0192-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0193-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0194-1.jpg

https://sl-i.net/FORUM/images/imported/2009/10/IMG_0195-1.jpg

as you can see the waterpump is different the USDM inlet faces down and JDM front...
boxingfanatic
10-14-2009, 03:20 PM
anyone can identify this?
Huffer
10-14-2009, 03:27 PM
Engine code is usually stamped on the block near the back, and that looks like a Forester engine. The USDM waterpump should be fine to swap over, as long as it matches up.
Benfolio
10-22-2009, 12:43 PM
I'm going to have the same issue soon, so let us know how it worked out for you, or we can find out together! :lol:
10-22-2009, 01:50 PM
been there, done that...

it works fine... :smt023
Benfolio
11-12-2009, 10:24 PM
Finally got my JDM motor built, and yes the USDM water pump fits, BUT.... the JDM timing cover does not. Mine needed to be trimmed to fit around the curve the USDM water pump has for its outlet. No biggie, but now you all know. :smt023
boxingfanatic
12-28-2009, 02:16 PM
what do you know... havent finished mine yet due to work and crappy weather outside.. engine is in.. more problems though.. JDM engine doesnt have 2 lower bolts that mate to tranny... just realized it when the motor is in.. does anyone know what size bolt it is? thanks guys....