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Old 07-14-2008, 12:26 PM   #1
mxpunk
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Default seized ej205 - need opinions

so now i have a 2002 wrx, bone stock except for tein lowering springs or whatever..

The guy blew it up doing 115 mph on a road course @ like 6500 rpm's apparently..

I thoguht most ej205's were just spinning bearings, but to actually seize???

When I drained the oil there was ALOT of copper colored particles in it. I believe he was using Mobil 1 5W30 Synthetic.

ive read the horror stories about that oil so perhaps the combination of a track day flogging and water oil lead to its failure.
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Last edited by mxpunk; 08-11-2008 at 07:37 PM.
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Old 07-14-2008, 10:35 PM   #2
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I would just tear down the block and see what happened to what. Then go from there. You should be able to have the crank machined (possibly new rods) and order a set of oversized bearings.

BTW, pulling the pistons is going to be "fun" if it really is seized, but you can always unbolt the rod caps to get around that problem.


~Josh~
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Old 07-14-2008, 11:19 PM   #3
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im gonan try that but i see alot of ej205s on here for decent prices. if the heads are okay i think it'd be easier/cheaper to just get a newer shortblock
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Old 07-14-2008, 11:32 PM   #4
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Hey, PM me if you want a ej20 shortblock, honed, new rod and main bearing, you install pistons.....
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Old 07-15-2008, 09:56 AM   #5
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Quote:
Originally Posted by ballitch View Post
I would just tear down the block and see what happened to what. Then go from there. You should be able to have the crank machined (possibly new rods) and order a set of oversized bearings.

BTW, pulling the pistons is going to be "fun" if it really is seized, but you can always unbolt the rod caps to get around that problem.


~Josh~
Considering how cheap a new crank is from the dealer, I wouldn't bother with the crank regrind and oversized/undersized bearings.
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Old 07-16-2008, 12:08 PM   #6
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how much are we talking here? i have a feeling im going to need to get a new block anyways but we will see.
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Old 07-16-2008, 02:48 PM   #7
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Crank is $280 plus shipping from 1stsubaruparts.com (or something like that).
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Old 07-17-2008, 01:15 PM   #8
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I think it's $272 at subarugenuineparts.com.
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Old 07-17-2008, 02:20 PM   #9
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this is the revised one, correct?
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Old 08-11-2008, 06:06 PM   #10
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i noticed the coolant looked awfully cool if you know what i mean..

ala..it looked like straight coolant and not like it was mixed 50/50 with distilled water.

could this have caused the seize??
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Old 08-11-2008, 06:15 PM   #11
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Nooooooooooo
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Old 08-11-2008, 06:55 PM   #12
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my vote is for bent rod and broken piston. The crank wont turn because the rod is getting hung up on the cylinder wall. Have you tried to spin it by hand (ie with a breaker bar on the crank?) just to see if a little force can spin it? I have had 2 ej257's seize on me. Both with the above scenario. Broken apart piston and bent rod.
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Old 08-11-2008, 07:21 PM   #13
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yea i have..its sieeezzeddd

im tearing it down in a little bit so we will see. ive been waiting on my engine stand as it was being occupied by my friends mustang 5.0 motor
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Old 08-11-2008, 10:36 PM   #14
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are the shims gonna pop out if i take out the camshafts? or whne i take them out as the head bolts are underneath the cams
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Old 08-11-2008, 10:39 PM   #15
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Turn the engine on its side. Then the shims stay put due to gravity. and when you remove the head bolts, the head stays on the motor. then you pull the head off and set it aside.
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Old 08-11-2008, 10:46 PM   #16
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^^ wordd. so much more **** compared to my ej18t..lol.

any tricks for holding the cams put so i can unbolt them? cobb tuning sells a wrench but i dont wanna' buy it
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Old 08-11-2008, 11:35 PM   #17
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If you have a strong 1/2" impact gun give them a quick blast with the t-belt still on. Or put the crank bolt in and have someone hold it with a breaker bar while you use another bar to break the bolts loose. Use a good socket and make sure you are on the cam bolt straight.
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Old 08-12-2008, 10:44 AM   #18
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Just buy a short block, the hassle of getting the pistons out and everything isnt worth it I think. You can get a new SB or buy a used low mileage one.
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Old 08-12-2008, 12:00 PM   #19
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Quote:
Originally Posted by rollingindiana View Post
Just buy a short block, the hassle of getting the pistons out and everything isnt worth it I think. You can get a new SB or buy a used low mileage one.
exactly what im probably gonna wind up doing i just need to get the heads off and i will be able to see. if the heads were damaged then i will be looking to source a long block most likely.
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Old 08-21-2008, 09:13 PM   #20
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Im in the same boat.... My motor just took a huge crap on me. Sounds like I spun a bearing as well. Havent torn it aprt yet. Im looking for a short block if anyone has one.
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Old 08-21-2008, 09:31 PM   #21
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I wish someone would drop abotu 4g's into my lap so i could rebuild with high comp pistons and make the heads spin to 8.5K..but i think 300whp is a good # for daily driving. Was there metalic/gold flakes in your oil, like mine?
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Old 08-24-2008, 04:00 PM   #22
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Okay so I got the heads off. The piston didnt hit them valves so im good to go as far as that goes.

Now I need to get together a list of parts im gonna need to buy

so far ive got

headgaskets
Water pump gasket (pump/timing belt was done 2 weeks before the motor blew)

i noticed the cams have some type of sealant around them where they sit in the heads, can i use any type of automotive RTV or should I buy some subaru liquid gasket?

anything else i should replace while its apart?
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Old 08-25-2008, 05:56 PM   #23
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anyone?
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