Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
* * * * - 1 votes

Why do you guys love the EJ22? Confused...


  • Please log in to reply
36 replies to this topic

#26 Uberoo

Uberoo

    Subaru Wheeler

  • Members
  • 3,406 posts
  • lewiston,ID

Posted 13 October 2013 - 09:44 PM

from what I understand, NONE.



#27 987687

987687

    Rally Suby!

  • Members
  • 3,562 posts
  • Northern Maine

Posted 14 October 2013 - 08:24 AM

So what are the years of EJ22 heads that you can bolt onto the EJ25D block and still produce a genuine non-interference engine as a result?

 

Well in 97 they changed the PISTONS. This is what makes 97+ 2.2 an interference engine, it has nothing to do with the heads. a 96 ej25 MIGHT have non-interferance pistons, becasue it's pre-97.



#28 86BRATMAN

86BRATMAN

    Subaru Master

  • Members
  • 3,304 posts
  • Tazewell Virginia

Posted 14 October 2013 - 08:54 AM

None. 

 

96 ej25 pistons are a higher compression piston than the 97-99's


Edited by 86BRATMAN, 14 October 2013 - 08:57 AM.


#29 MilesFox

MilesFox

    Catch this Fox!

  • Members
  • 10,519 posts
  • Madison/Milwaukee, WI

Posted 14 October 2013 - 09:33 AM

My engine has a presumed 97 ej25d and ej22e heads form a 95. From what i understand with DOHC is the valves will hit eachother in regard to ej25d.


Edited by MilesFox, 14 October 2013 - 09:34 AM.


#30 NorthWet

NorthWet

    Eeyore Incarnate

  • Members
  • 5,039 posts
  • Bremerton, WA

Posted 14 October 2013 - 11:57 AM

Any DOHC head with separate sprockets for each cam has the potential for valve-to-valve interference.  This depends on lift and valve geometry.  DOHC heads that only have one sprocket per bank (with a chain driving the other camshaft, like in the EG33) don't have this issue (unless the chain breaks...).



#31 987687

987687

    Rally Suby!

  • Members
  • 3,562 posts
  • Northern Maine

Posted 14 October 2013 - 01:25 PM

Any DOHC head with separate sprockets for each cam has the potential for valve-to-valve interference.  This depends on lift and valve geometry.  DOHC heads that only have one sprocket per bank (with a chain driving the other camshaft, like in the EG33) don't have this issue (unless the chain breaks...).

 

The EG33 has one sprocket for the timing belt. But under the valve covers the cams are actually connected by gears.



#32 el_freddo

el_freddo

    Eat, Live, Breath Subaru

  • Members
  • 515 posts
  • Lancefield, Vic, Aust.

Posted 16 October 2013 - 05:57 AM

nobangmycar, on 11 Oct 2013 - 04:48, said:
Thanks for the reply guys! I understand now. I didn't realise you didn't have all the engines available over there. Personally I wouldn't do a turbo engine swap because I know it is a lot of work and I don't understand enough about them, but every the most common engine here is the 2.0 DOHC turbo and non-turbo. We have access to so much over here and there are so many of them on the road, from EJ15, 16, and 18, thru to the dreaded EJ25 with the H/G issues and the EZ30 (great engine, but quite long!). It has all become clear. The 2.2 is not very common at all here, but I might try track one down and learn a bit more. Cheers guys!


The EJ22 is basically the same as the SOHC EJ20, just the displacement is different in principal ;)

Also part of the EJ22 conversion (L series and MY specific) is that it's been done before and a known conversion - plus it's an awesome power and reliability upgrade on the EA82!

BoxerRebellion, on 13 Oct 2013 - 10:46, said:
Subaru's EJ22 was the most bulletproof engine ever designed.


Sorry, I gotta vote the EA81 for most bulletproof engine ever designed. The other one is the Holden red 6 cylinder, the 186 comes to mind - a great engine!

Cheers

Bennie

PS - any RXII coupes getting around out your way? I'd love the gearbox, rear diff, diff lock switch, grille and instrument cluster from one - or just the whole thing (if I could ever afford one plus the shipping and import taxes etc) in good condition as we never got them in Oz :(

Edited by el_freddo, 16 October 2013 - 06:01 AM.


#33 ivans imports

ivans imports

    1000+ Super USER!

  • Members
  • 2,947 posts
  • lumby bc canada

Posted 16 October 2013 - 08:59 AM

any 94 and older 2.2 head on 2.5 is non interferance engine have made a few now must use thick headgasket from 2.5d but works fine and have used 2.2 heads on 2.51s and 2.53s. The ej 1.8 is probly the toughest ej engine and the ea81 is toughest ea engine but has weak pistons ej not as weak pistons



#34 86BRATMAN

86BRATMAN

    Subaru Master

  • Members
  • 3,304 posts
  • Tazewell Virginia

Posted 16 October 2013 - 11:43 AM

The ej22 heads didn't change in valve configuration from 90-98, the difference that made the 96+ interference was the piston change.  Heads from a non-interference ej22 will still interfere on an ej25, don't believe me throw one out of time and rotate it.



#35 Gloyale

Gloyale

    It's a sickness

  • Members
  • 9,158 posts
  • Corvallis, OR PNW

Posted 16 October 2013 - 11:48 AM

The ej22 heads didn't change in valve configuration from 90-98, the difference that made the 96+ interference was the piston change.  Heads from a non-interference ej22 will still interfere on an ej25, don't believe me throw one out of time and rotate it.

97,98 EJ22 heads have larger valves and roller/solid rockers which, combined with Cam profile are what make them inteference.



#36 86BRATMAN

86BRATMAN

    Subaru Master

  • Members
  • 3,304 posts
  • Tazewell Virginia

Posted 16 October 2013 - 12:48 PM


 

2.2 Liter Engine Enhancements


 

Beginning in the 1997 Model Year, the 2.2 liter engine for 1997 Legacy and


 

Impreza models has had internal and external changes that yield an approximately


 

10% increase in power and 3% increase in fuel economy. Accomplishing this


 

involves many factors, one of which is engine friction reduction.


 

The piston, a major source of engine friction, has been coated with a friction


 

reducing agent called Molybenum. This thin coating not only allows smoother


 

travel through the cylinder, but also reduces cylinder wall scuffing.


 

The skirt of the piston has been reshaped and the overall weight has been


 

reduced by approximately 100 grams. Compression ratio has been increased to


 

9.7 to 1 by reshaping the crown of the piston. This eliminates the clearance that


 

was available between the piston at TDC and the fully opened valve. Piston pin


 

offset has been changed to 0.5 mm. Piston to cylinder wall clearance has been


 

reduced by increasing the piston diameter.

 

 

 

Pulled directly from this endwrench artice.

 

http://www.ultralige...22-Overhaul.pdf



#37 Subaru Scott

Subaru Scott

    New User

  • Members
  • PipPipPip
  • 61 posts
  • Cape Coral, FL

Posted 26 December 2013 - 12:09 PM

Ea81: valve adjustments (most), carb rebuilds, distributor issues, leaky oil pumps, pans and valve covers. And crank thrust bearings never made it too far with manual trans.

 

EJ22: timing belts and pulleys... drive it around the world ^_^






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users