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04 OUTBACK 2.5L AT AWP
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Discussion Starter · #1 ·

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I has car.
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4,621 Posts
USDM-compatible engine donors would be Legacy or Outback from 2000-2004 with a non-turbo 2.5, Forester from 1999-2004 or so, and Impreza 2.5RS (not WRX) from around 2002-2004/5. Not sure on the exact years.

Easiest to find (at least around here) would be a Legacy, Outback, or Forester.

Depending on what's broken you can use parts off earlier or later engines as the short blocks had only minor changes over the years. After 2005 most engines will have AVCS. . . completely different heads.

JDM engines seem to be reasonably good candidates, not sure what the import business is like in Lithuania but there are dozens of importers of JDM drivelines here in the US. Perhaps do a Google search for "Japan Engine" or similar. . . or find a good Subaru junkyard near you. Usually best to buy locally and save shipping. . . and actually be able to see it before you buy it.
 

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2004 Outback Wagon, 2.5, 4EAT, All weather package.
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1,036 Posts
Merry Christmas!I have a '04 Outback 2.5L AT AWP (VIN 4S3BH675747609461).
2004 Subaru Legacy Wagon (Natl) Wagon w/All-weather Package VIN 4S3BH675747609461 - Free Subaru Legacy Wagon (Natl) VIN Decoder
I have a huge problem - the engine broke down :gasp::8:.Since the engine repairs are expensive, I want to replace the entire engine.I want to buy a good used engine, but I do not know of any Subaru models for my car.:confused: Please help solve this problem.:6::help:
What exactly went wrong with your old engine that you want to replace the whole thing?
 

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04 OUTBACK 2.5L AT AWP
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4 Posts
Discussion Starter · #4 ·
What exactly went wrong with your old engine that you want to replace the whole thing?
Cars have been in contact with water, resulting in faulty ECU, oxygen sensor and catalytic converter.Specialists changed the ECU,the main belt and the oil filter.Everything was in order, the engine worked perfectly.However, after passing just a few hundred miles, the engine started hard to settle, there was no option would increase the engine speed.Specialists have found that after a collision with water, broke the catalyst that and did not come out the exhaust gases.Removing the catalytic converter, the engine is re-started in normal mode, but while the engine is cold, you could hear a weak compensator valve and piston noise.Yet after a while the engine is started tumbling to work and use a lot of oil.How strange, the engine uses fuel within the normal range, power is still sufficient, but uses oil 5L ~ / ~ 700 miles.I decided to replace the engine because the engine repairs are expensive.:confused:
 

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2000 Outback 5MT
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425 Posts
Buying and replacing the engine wont be much cheaper. Honestly, it may be more expensive even. Now, if something is cracked like a cylinder wall or something else, then yes, it may be cheaper to swap motors.
 

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01 VDC, 05 R Sedan, 06 BAJA EJ257
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16,259 Posts
Have you checked the car yards in your area? Any 2.5 litre will work in the automobile. All European models had the same computer and engine harnesses. Any year back to 1998 should be compatible.

Ar patikrinote savo srityje automobilių aikštelėse? Bet koks 2,5 litro dirbs automobilio.Visos Europos modeliai turėjo tą patį kompiuterį ir variklio diržų. Bet kuriais metais, jau 1998 m, turėtų būti suderinami.

Hope I got that right. :)
 

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04 OUTBACK 2.5L AT AWP
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4 Posts
Discussion Starter · #7 ·
cardoc
Does changing only the engine complete with cylinder head will not need to change anything else?Are there different engine mount if the car with an automatic gearbox or manual?Is the exhaust and intake systems identical to those engines?Thanks for the info.

Best regards
 

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01 VDC, 05 R Sedan, 06 BAJA EJ257
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16,259 Posts
Depends on year model you get, you may have to change the intake manifold with the harness and sensors. Block and heads identical. Will bolt up the same either auto or manual.
 

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OBW H6 VDC, Tribeca, XT6
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You can use any 2.5 liter (EJ25) engine. Bolt the current intake manifold and exhaust to the "new" engine and swap the cam sprockets and crank gears from your current engine to the new engine - if the timing mark triggers are different on the back of the sprockets/gears. If they're the same just leave them.

if you find an older DOHC EJ25 you can bolt your heads to it if you use thick headgaskets for piston-to-head clearance. I wouldn't recommend that block though myself but I have done that before.

There are also options for using 2.2 liter engines and probably smaller, in your vehicle. I've put 1.8 liter engines into 2.5 liter vehicles before. Not sure what your foreign engine market looks like though and what differences there may be.

In the US Phase II EJ22's are plug and play with the 2.5 liter engines in your car. have to sometimes do the same cam/crank gear swap mentioned above, but that's easy - and you need single port ehxuast headers which also bolt right in place. for these later models the intake manifolds between 2.2 and 2.5 liters are interchangeable.
 
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