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Old 05-16-2017, 05:55 AM   #1
left footed whooten
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Default EJ22, worth fixing separator plate/rear main seal without rebuilding engine?

Hi all, wondering if I could solicit your knowledge for some input on a good bad idea.

Considering a '94 Legacy Alpine Edition as a second/runabout/beater car. Got a new Colorado and Im piling up the miles fast.

Found one local that looks straight, otherwise good bones, that I can get for ~$500. It needs an oil separator plate and probably a rear main seal too. Would do PCV as well. Diagnosed by a local shop.

Looking for input as I figure out the feasability of this, as I know it involves pulling the engine to fix these seals and leaks. Car has 190k on it, 19 years same owner.

I figured I could have a shop compression test, if ok then pull the engine, swap the seals, do a t belt/WP, etc, fix any other rubber or leaks while its out and just drive it till it has problems then deal with it later as it comes.

OR in your vast NA/EJ22 experience, would it be worth just doing a rebuild since its out of the car? Ive heard many reports of not fixing whats not broken, but vs the cost of pulling the engine, trying to max my dollar. If the compression and leakdown is ok, im inclined to just fix the issues and see if I can get this thing bought and made otherwise solid for $2k. If I got 30k miles out of it Id be happy vs the price. Otherwise Id fan it if it was going to be over that dollar figure.

All my subarus over the years have been EA or older, then EJ25, EJ18, then turbo engines, never had an EJ22.
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Old 05-16-2017, 11:23 AM   #2
lpxltt
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I wouldn't rebuilt but I would make sure valve cover gasket and cam seals are good before it goes back in. Take a look at the HG but generally this generation of EJ22 doesn't have the problem the 96+ cars have. It will most likely be an external leak if anything.

These things are very hard to kill so as long as it hasn't been run dry on oil you should be fine with just replacing the seals.
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Old 05-16-2017, 12:40 PM   #3
left footed whooten
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Yeah, I figured Id treat it to new VC gaskets and other rubber items while its out. Good to know about the earlier pre-96, thats what I was hoping to hear. Guys had it for 19 years so he must be keeping it up on oil. If i can keep it at or around 2000$ i might do it. Run a quick comp and leakdown test before I go tearing anything apart, then seal her up if shes good.

Are used japanese ej22's obtainable or not much of an option anymore?
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Old 05-16-2017, 12:59 PM   #4
v2rocket_aka944
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190k mile subaru...wouldn't bother with rebuild.
fix the leaks, check it again at 290k lol
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Old 05-16-2017, 01:25 PM   #5
left footed whooten
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They decided to keep it...weak. I wanted an alpine edition!
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Old 05-18-2017, 10:05 AM   #6
Charlie-III
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Quote:
Originally Posted by left footed whooten View Post
Hi all, wondering if I could solicit your knowledge for some input on a good bad idea.

Considering a '94 Legacy Alpine Edition as a second/runabout/beater car. Got a new Colorado and Im piling up the miles fast.

Found one local that looks straight, otherwise good bones, that I can get for ~$500. It needs an oil separator plate and probably a rear main seal too. Would do PCV as well. Diagnosed by a local shop.

Looking for input as I figure out the feasability of this, as I know it involves pulling the engine to fix these seals and leaks. Car has 190k on it, 19 years same owner.

I figured I could have a shop compression test, if ok then pull the engine, swap the seals, do a t belt/WP, etc, fix any other rubber or leaks while its out and just drive it till it has problems then deal with it later as it comes.

OR in your vast NA/EJ22 experience, would it be worth just doing a rebuild since its out of the car? Ive heard many reports of not fixing whats not broken, but vs the cost of pulling the engine, trying to max my dollar. If the compression and leakdown is ok, im inclined to just fix the issues and see if I can get this thing bought and made otherwise solid for $2k. If I got 30k miles out of it Id be happy vs the price. Otherwise Id fan it if it was going to be over that dollar figure.

All my subarus over the years have been EA or older, then EJ25, EJ18, then turbo engines, never had an EJ22.
Quote:
Originally Posted by lpxltt View Post
I wouldn't rebuilt but I would make sure valve cover gasket and cam seals are good before it goes back in. Take a look at the HG but generally this generation of EJ22 doesn't have the problem the 96+ cars have. It will most likely be an external leak if anything.

These things are very hard to kill so as long as it hasn't been run dry on oil you should be fine with just replacing the seals.
Quote:
Originally Posted by left footed whooten View Post
Yeah, I figured Id treat it to new VC gaskets and other rubber items while its out. Good to know about the earlier pre-96, thats what I was hoping to hear. Guys had it for 19 years so he must be keeping it up on oil. If i can keep it at or around 2000$ i might do it. Run a quick comp and leakdown test before I go tearing anything apart, then seal her up if shes good.

Are used japanese ej22's obtainable or not much of an option anymore?
I know the owners decided to keep it, this is in case someone else finds this thread.
I agree with the other 2 posts, check compression or do a leakdown test, if it looks good, fix the leaks (rear main, oil separator plate, front crank, cam seals, VC seals, piston pin access) and drop it back in.
Once you get into rings, you have to draw the line on how much to rebuild.
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Old 05-20-2017, 01:32 PM   #7
left footed whooten
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Nice thanks for all the replies. Hope I made the title searchable for future reference. Im still on the hunt for that pre 96 2.2 powered wagon of some sort.

Is the ej18 just as solid or less so? I had one for 85k miles, got it at 90k, kept up on maintenance except when the tensioner bolt broke right away. Gutless but was solid.
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Old 05-20-2017, 04:44 PM   #8
Charlie-III
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I believe the older 1.8's were also good, just down on power if NA.
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Old 09-12-2017, 10:35 PM   #9
BRamic24
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Sorry for the noob question, but are the front and rear cam seals the same on the ej22?
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Old 09-17-2017, 12:23 AM   #10
CosmoTheCat
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Since the camshafts don't actually stick out the back of the head, no. There are seals up front, and plugs out back. Well, plug on the driver's side, passenger's side gets a metal plate with an o-ring.

The plug and seal are the same diameter though, as the plug in the back of the driver's head goes in the same hole as the right side front seal. The heads are universal. The driver's side front seal goes in an extension housing that seals with an o-ring.
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