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Old 03-14-2009, 01:42 PM   #1
Zdawg_42
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Default 1995 Impreza L wounded motor

I have a dilemma. My impreza that I have used every day for the past...many years has recently developed this thirst for oil, and now won't even run properly. I believe during one of the -30 winter days this year I didn't give it enough time to warm up and did some serious damage. So I need to know what the experts think. Would this car make a decent car to fix/mod up? Or should I scrap it and look for another cheap suby to use? I have had thoughts of putting in either a 2.0, or possibly even something as crazy as a 2.5-it currently has 1.8l with 5spd- but don't know how much time/money I have to devote to this project. Any thoughts and or suggestions will be greatly appreciated. Thanks.
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Old 03-14-2009, 04:47 PM   #2
ballitch
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98 cam'd EJ251
Wrx Tranny,slowr than ish

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I say yank out the old motor and throw in a plug and play EJ22. If you get an intake manifold with the EJ22, swap your current EJ18 engine harness onto it. (EJ22 manifold flows slightly better) I cant remember if the EJ18 has dual port heads or not, but if they do, be sure to use an EJ22 with dual port heads (now would be the perfect time for cams) Instant 25 hp gain on just the block alone, cams are good for ~8-10 hp.


~Josh~
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Old 03-14-2009, 05:57 PM   #3
Storm
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I agree. Look around for a decent EJ22 from 1998 or earlier, swap over the engine harness, and drop it in. It all goes like it came with it, and you get a healthy kick in the pants at the same time.

All EJ18's had a dual port exhaust, but EJ22's from 96 on, got a single port exhaust which would require you to get the matching manifold. After 1998, the EJ22 design went to phase II, and is a bit more involved to swap into your 1995 car (wiring wise).

FWIW....an EJ25D (DOHC) motor is just about as easy to swap into your 1995 Impreza, and gives you even more bang for the buck. It has it's own quirks, such as headgasket issues, but it can be a reliable solution that would really wake up your car for little money.

If the car is in good shape otherwise, I would simply swap out the tired motor for a fresh EJ22 or EJ25.

Jay
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Old 03-14-2009, 11:21 PM   #4
Zdawg_42
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Wow- you guys are quick. Ok, so I found a ej22, I believe out of a 92 something or other. But it has 180k+. I was thinking, well at least I have heard that it's a good idea to swap the cams out of a ej18 into the 2.2...? Would this sacrifice fuel economy for only about 10hp? Also should I decide to go with this older motor, should I have it machined and go through it or just drop it in and go? I don't know much about the ej22. One more question, is the increase in hp going to destroy my clutch/tranny? Enough to the point where I need to upgrade the clutch before I install the new motor? Thanks for your help.
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Old 03-15-2009, 12:48 AM   #5
Storm
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The EJ22 is very robust and should outlast the car. If it's got 180k on it, you might as well do a full reseal on it before putting it in. You should probably also replace the plastic oil seperator cover (behind the flywheel) with either the cast aluminum piece, or the stamped steel piece. The plastic ones are prone to leakage and have been updated to metal. I would also consider replacing the waterpump and removing the oil pump to check the rotor for wear (and loose screws holding the rotor cover on). If your clutch is worn, you can upgrade it to an EJ22 or EJ25 unit (along with the flywheel)....but I wouldn't say it's required.

If you wanted to swap your EJ18 cams in, you gotta swap the rockers too. Personally, I would send your EJ22 cams out to Delta Camshaft and have them reground for a little more pep.

Good luck with it...it's an easy swap that can be done in a day......literally.

Jay
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Originally Posted by Zdawg_42 View Post
Wow- you guys are quick. Ok, so I found a ej22, I believe out of a 92 something or other. But it has 180k+. I was thinking, well at least I have heard that it's a good idea to swap the cams out of a ej18 into the 2.2...? Would this sacrifice fuel economy for only about 10hp? Also should I decide to go with this older motor, should I have it machined and go through it or just drop it in and go? I don't know much about the ej22. One more question, is the increase in hp going to destroy my clutch/tranny? Enough to the point where I need to upgrade the clutch before I install the new motor? Thanks for your help.
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Old 03-15-2009, 03:15 AM   #6
Zdawg_42
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Sounds good-is there a good place to buy engine seal kits? or do I have to buy them all separate? Also the seller who I am working with was talking about the possibility of putting the heads off of my wj18 on the ej22 to give me appropriate compression for a turbo. Has anyone heard of this being done and is it a good or bad idea? it sounds like a lot of extra work, that I worry would just end up overheating or wrecking a good motor. Any thoughts here would help.
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Old 03-15-2009, 01:24 PM   #7
Storm
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I wouldn't put the EJ18 heads on the EJ22. Your buddy mighta got confused as the EJ18 heads would increase compression, making it not as suitable for turbo later on. That being said, the old-old school way of building a turbo friendly hybrid was to use EJ25 heads on the EJ22 block for a nice CR and very good flowing heads. The EJ18 heads just don't flow well enough to make much difference.

You can order a full reseal kit at the dealer for about $200, but it includes literally every single gasket, seal, sealing washer, O ring, etc...to do the motor. Most times you have stuff left over! I've used ebay sourced kits as well, but am not too fond of the graphite headgaskets. They haven't failed me yet (only used them on one car that's been going for a year now) but I prefer the MLS gaskets from the dealer or aftermarket such as Cometic (who will make them in any thickness you want).

Jay
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Old 03-16-2009, 01:31 PM   #8
sqc151
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where u located??
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Old 03-16-2009, 10:56 PM   #9
Zdawg_42
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Okay, so I have yet another question. I was looking online and found a brand new-unused-never installed ej22 for 1200 bucks plus 100 bucks for shipping. This other used motor I am looking at purchasing has 180k+ and needs some work replacing gaskets and seals and I was going to pay 300 delivered to my door. Would a new motor be worth a little more money?

PS I am located in West-Central MN.
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Old 03-16-2009, 11:51 PM   #10
Storm
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It might be....but resealing an older motor would still cost less than the new motor. It may boil down to personal preference....

Jay
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Old 03-17-2009, 12:48 AM   #11
colingilchrist
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Which do you have more of, money or time?
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Old 03-30-2009, 12:31 AM   #12
Zdawg_42
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I just about got the motor pulled but I can't seem to break the tranny free from the motor. I'm pretty sure I've got all the bolts pulled-anyone have this problem or a good answer for me?
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Old 03-30-2009, 09:59 AM   #13
Storm
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The dowel pins are notorius for being a PITA. PB Blaster, and a putty knife tapped into the parting joint. Work the puttyknife along with more PB Blaster, then move up to a screwdriver. It'll come apart.....

Use antiseize on the pins when reassembling.

Jay
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Old 04-03-2009, 04:00 PM   #14
Zdawg_42
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If the motors from any ej chassis are interchangeable does this mean that the tranny's are as well? Such as a 5spd to auto? I found a good deal on an impreza with the 2.2 in it but no tranny. If I was able to take my working 5spd out would that work on the car with the bad tranny? Both cars are 95's mine had the 1.8 this other one has the 2.2
Thanks for your help
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Old 04-03-2009, 04:34 PM   #15
Storm
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The trannies are also interchangable mechanically. You run into specifics when you start looking at cable actuated and hydraulic actuated clutches, and then push and pull style.

Auto to manual requires different transmission crossmembers and of course the pedal assembly inside. Cable to hydro also requires different pedals inside. It's all doable, but may or may not be worth the hassle.

Jay
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Old 04-28-2009, 10:26 PM   #16
Zdawg_42
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Default TPS Sensor

Does anyone know if the trottle bodies on a ej22 and ej18 are interchangeable? The TPS sensor on the ej22 I bought is a 4 pin and on the ej18 I am replacing it was a 3 pin. Is there a quick fix for this? Thanks
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Old 04-29-2009, 12:15 AM   #17
Storm
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Replied to your PM. The TB's are interchangable. It may get tricky if the IAC (idle control valve) is located differently, but most times, it's not an issue.


Jay
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