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Old 05-19-2008, 08:52 AM   #1
theos
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Default What is the type of motor?

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Old 05-19-2008, 01:55 PM   #2
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Old 05-21-2008, 05:40 AM   #3
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Old 05-21-2008, 05:41 AM   #4
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Old 05-21-2008, 09:22 PM   #5
Hurley 2.5 WRS
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edit:

scratch that, its a late model (phase II), with what looks like phase I pistons.
the thrust bearing in in the rear main in the block.

either ej205 or 7 block (dunno if the non sti WRX ej207's had open deck or not, think they did. hell, i think even the STI blocks were open deck)

yup, looked again, its a version 5 or 6 block, it doesnt have the extra crank case breather

Last edited by Hurley 2.5 WRS; 05-21-2008 at 09:35 PM.
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Old 05-22-2008, 03:42 PM   #6
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Yup crank bearing local says its Phase II, rods are pre Ver 7, and pistons are not STi, cast.
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Old 05-23-2008, 02:21 AM   #7
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sorry,
what means Phase II?
so, it can't be ej207
can it be ej20k produced in 1998 (the latest version of ej20k, japan oriented)?
or precisely ej 205?
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Old 05-23-2008, 09:13 PM   #8
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its either an ej205 or an ej207 block. 1999 or 2000 (post 98 but pre new age)

the pistons are from pre-99 (phase one) and are probably in your engine because its using the ej20k heads and they used K gaskets to keep the correct compression ratio.

so: my bet is that its got ej20k heads, ej20k headgaskets, ej20k rods, and the ej205/7 block and crank.
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Old 05-23-2008, 10:20 PM   #9
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Wouldn't an Ej207 be semiclosed deck? I am guessing Ej205 block.
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Old 05-24-2008, 02:08 AM   #10
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motor hasn't been repared or uprgraded before...
maybe it's ej20k with 210\240 crank?
that type of ej20k produced since 1998...
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Old 05-27-2008, 12:06 AM   #11
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Quote:
Originally Posted by Matt Monson View Post
Wouldn't an Ej207 be semiclosed deck? I am guessing Ej205 block.
Ver 5/6 are EJ207 with open deck blocks. No semiclosed till ver 7
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Old 05-27-2008, 02:24 AM   #12
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Quote:
Originally Posted by theos View Post
motor hasn't been repared or uprgraded before...
maybe it's ej20k with 210\240 crank?
that type of ej20k produced since 1998...
says who? you cant trust anyone but yourself
Quote:
Originally Posted by Scoobie Steve View Post
Ver 5/6 are EJ207 with open deck blocks. No semiclosed till ver 7
yup
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Old 05-27-2008, 11:16 AM   #13
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Quote:
Originally Posted by Scoobie Steve View Post
Ver 5/6 are EJ207 with open deck blocks. No semiclosed till ver 7
Aha. Got it.
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Old 05-28-2008, 08:36 AM   #14
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Quote:
Originally Posted by Hurley 2.5 WRS View Post
says who? you cant trust anyone but yourself


yup
says master who is reparing my motor.
so, motor can be ej207 ver 5/6?
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Old 05-28-2008, 06:16 PM   #15
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post pictures of heads and intake manifold
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Old 05-31-2008, 02:29 AM   #16
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Hmmm, That looks like mine, except for the pistons. Mine are forged. Thrust bearing in the rear.

Mine is said to be V4 sti. Got me thinking now. From what I read the V4 would be phase 1 with thrust in the #3 position.

only one breather on top.

]


Thrust in the rear.


Last edited by fishheadback; 05-31-2008 at 02:39 AM.
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Old 05-31-2008, 06:33 PM   #17
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Looks like a V4 vehicle by the pic. Block also looks V4 as it is 4 bolt and still appears to be centre thrust by my reckoning. Gearbox is also 4 bolt.

If the engine is from the car pictured and it is JDM then post up the applied model code off the build plate on LH strut tower and I can tell you what the car is and what the engine is.
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Old 05-31-2008, 09:51 PM   #18
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Quote:
Originally Posted by jzk25 View Post
Looks like a V4 vehicle by the pic. Block also looks V4 as it is 4 bolt and still appears to be centre thrust by my reckoning. Gearbox is also 4 bolt.

If the engine is from the car pictured and it is JDM then post up the applied model code off the build plate on LH strut tower and I can tell you what the car is and what the engine is.
youre right, the car is probably either a V3 or 4,

BUT, you are not looking at the pictures enough. the block is a phase 2 block. it has a rear thrust bearing placement, and has 8 holes for the transmission to bolt to the block. i just compared the bolt holes on a V4 K and V7 207 that sit literally next to eachother in my garage and this is what i found, heres theos's picture that i added an arrow to:

the red arrow points to one of the 4 extra bolt holes for the phase 2 blocks. my phase one just has that flat part/numbering area above it extending further down where that hole would be

Quote:
Originally Posted by fishheadback View Post
Hmmm, That looks like mine, except for the pistons. Mine are forged. Thrust bearing in the rear.

Mine is said to be V4 sti. Got me thinking now. From what I read the V4 would be phase 1 with thrust in the #3 position.

only one breather on top.

]


Thrust in the rear.

could you check if it has 4 bolt holes on the back for the tranny or if it has 8? you have me wondering. late model K's may have a newer block than we think........
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Old 05-31-2008, 11:44 PM   #19
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Well here is a pic of the back of the motor.



And here is the best pic I could find of the drivers side since its hard to see in the other.



Looks like 8 holes to me.

What have we stumbled across here??
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Old 06-01-2008, 01:05 AM   #20
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I thought it was 8 bolt but couldn't make it out 100%. In any case the V4 engines can be either 4 or 8 bolt as it is the changeover period. I never had the opportunity to pull one down to check whether it was rear thrust though as the bottom ends were always dead and aren't worth ressurecting down here. The second set of bolt holes are sometimes drilled and tapped, sometimes just pilot drilled. This is regardless of gearbox type. Many EJ25s are also like this. Perhaps the US EJ25's were not like this.
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Old 06-01-2008, 03:23 AM   #21
fishheadback
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Quote:
Originally Posted by jzk25 View Post
I thought it was 8 bolt but couldn't make it out 100%. In any case the V4 engines can be either 4 or 8 bolt as it is the changeover period. I never had the opportunity to pull one down to check whether it was rear thrust though as the bottom ends were always dead and aren't worth ressurecting down here. The second set of bolt holes are sometimes drilled and tapped, sometimes just pilot drilled. This is regardless of gearbox type. Many EJ25s are also like this. Perhaps the US EJ25's were not like this.
So whats the determining factor between a EJ20K and an EJ207??

From what I gather the 20k should be a phase 1 block with thrust in pos3, and the 207 should be phase 2 with thrust in pos 5.

Is that correct?? Or is this V4 motor that the OP and I have some frankenmotor of them both?

Wheres the JDM gurus at??
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Old 06-01-2008, 04:37 AM   #22
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EJ20K is 96-98 V3 and 4. The V3 is centre thrust 4 bolt block but I have seen both 4 and 8 bolt EJ20K V4 engines. There is a changeover period in late 98, presumably after they started producing the BE/H Legacy, where the blocks were 8 bolt but still had 4 bolt boxes and K heads. As I said, we were also getting BG/D Legacy EJ25's with 8 bolt blocks and old DOHC heads too about the same time.

So I would say the engine is still V4 EJ20K, just a late 98 model.
We see loads of EJ20K's(all the JDM STi's actually) over here. I do engine conversions fitting them to Legacy's for a living(among other things).
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Old 06-01-2008, 03:36 PM   #23
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Been doing a little searching,

From what I have found. A phase II block is equiped with the larger 52mm rods, and phase I is the smaller 48mm rod journal.

I know for a fact that mine are 52mm.

Then, doing a little more searching, I found this web site, http://grahamberry2.co.jp/impreza_gc8/, Shows V5 and V6 as being the "phase II" motors, while V4 is not.

So im still confused.

Would the block vary between a regular STi and a type R?? I wonder what the last model they produced for the V4 was, maybe they stopped casting the phaseI blocks and used phase II blocks for the remainder of v4 cars.

Crazy Subaru. . . . . .
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Old 06-01-2008, 05:15 PM   #24
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fuji heavy messin with your head fishheadback
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Old 06-01-2008, 05:36 PM   #25
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the changeover is most likley to happen on wagons, as said before. there always seems to be an odd collection on parts in them.

but, regarding a V4 and it comming with a phase 2 block: if it did, its a phase 2 block, not an ej20k block and it was probably done in a very short period of time where fuji "ran out" of stock (or something similar) and used newer block durring the transition time from 4->5. weve seen this type of thing on US WRX's with transmissions
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