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Old 09-10-2020, 11:30 PM   #1
Suby51891
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Member#: 518489
Join Date: Sep 2020
Default I need help ASAP on engine replacement

Ok so I'm new to this forum, and to the subie life. I just bought a non turbo 2009 Subaru impreza 2.5i 4 door 5 speed manual. It has a rod knock. So my options are, from what I've found thus far, get the original 2.5i(EJ25) for $1799 or get the 2.0L(EJ20) for $750 because it's a direct fit and $1k cheaper.<not sure how true this is.
So what I need to know, because I'll be swapping it out this weekend, is if the EJ20 is actually a direct fit? And since I'm taking the motor out if changing the clutch kit would be a good idea and would I only have to remove the engine to do so?
I need help guys, I'm very mechanically inclined but never worked on a Subaru. PLEASE HELP! ASAP
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Old 09-11-2020, 01:23 PM   #2
D-rock240
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Member#: 284221
Join Date: May 2011
Chapter/Region: MAIC
Location: West of Baltimore, MD
Vehicle:
2011 WRX GV SSM
2013 MacLeod

Default

Where did you get the $750 price?

If you pull the engine, clutch/flywheel and rear main seal while you are in there.
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Old 09-13-2020, 08:52 AM   #3
mightyjoe1
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Join Date: Sep 2020
Chapter/Region: MWSOC
Location: Northeast Ohio
Vehicle:
2008 Impreza SW
Silver

Default

If the crank is good probably just the rod bearing
Is bad. Would not hurt to take apart. U are going to trash it anyway. May not hurt to try a repair. It is a lot of work
And the car would be down for a bit.
I would rebuild it basically. New seals, rings,lap valves.

The 750 price is a good one. The 2.0 if from my
Understanding a stronger engine.

If u don't have tooling there is more cost.
Bit of a challenge for someone who hasn't done it.
Not sure about dohc heads sohc is simple.

Best of luck.
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Old 09-16-2020, 06:04 PM   #4
Suby51891
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Member#: 518489
Join Date: Sep 2020
Default

Quote:
Originally Posted by mightyjoe1 View Post
If the crank is good probably just the rod bearing
Is bad. Would not hurt to take apart. U are going to trash it anyway. May not hurt to try a repair. It is a lot of work
And the car would be down for a bit.
I would rebuild it basically. New seals, rings,lap valves.


The 750 price is a good one. The 2.0 if from my
Understanding a stronger engine.

If u don't have tooling there is more cost.
Bit of a challenge for someone who hasn't done it.
Not sure about dohc heads sohc is simple.

Best of luck.
I swapped clutch, flywheel, pressure plate and throw out bearing. I also changed the intake and exhaust manifold gaskets because I swapped mine over. It is idling high at around 1,500rpm to 1700rpm. Then when I start to drive it is sporadic.
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Old 10-04-2020, 06:01 PM   #5
Tballbiskit
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Member#: 519119
Join Date: Oct 2020
Default

Quote:
Originally Posted by Suby51891 View Post
Ok so I'm new to this forum, and to the subie life. I just bought a non turbo 2009 Subaru impreza 2.5i 4 door 5 speed manual. It has a rod knock. So my options are, from what I've found thus far, get the original 2.5i(EJ25) for $1799 or get the 2.0L(EJ20) for $750 because it's a direct fit and $1k cheaper.<not sure how true this is.
So what I need to know, because I'll be swapping it out this weekend, is if the EJ20 is actually a direct fit? And since I'm taking the motor out if changing the clutch kit would be a good idea and would I only have to remove the engine to do so?
I need help guys, I'm very mechanically inclined but never worked on a Subaru. PLEASE HELP! ASAP
Where did you find those prices? Is that with an engine trade in? If you get a jdm ej20 like an ej207, their redline is at 8k rpms, so that's a plus for the Japanese motor which I suggest, but they may be more expensive than what you've found
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Old 10-15-2020, 08:25 AM   #6
jorgythegreat
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Member#: 519403
Join Date: Oct 2020
Default

Iíve recently swapped a EJ205 into my 12 WRX and it physically fits. Parts from the old engine including wiring will need to be swapped over. I will say I am currently battling an ECU code for engine timing but it does run and drive. Hopefully youíll have better luck than myself.
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Old 11-09-2020, 02:37 AM   #7
GenericNameHere
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Join Date: Nov 2020
Default

Following curious to see if this is a viable move for the gfs car having gasket problems
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