Hi All
The title says it all .
i am attempting my first rebuilt attempt of a ej20...
in the past i have done smaller rebuilds on smaller engine
Mostly motor bikes .but nothing this big as this .
Recently i bought a wrx gc8,00, “cheep” the original ej205 has bottom end damage spun a bearing , but on the plus side the car came with a bonus sti ej20 , what version i dont know. The deification sticker on the engine cover was unreadable .
Did a compersion test to be on the safe side ,results follow
piston 1 , 80psi
piston 2 , 50 psi
piston 3 , 120 psi
piston 4 , 100 psi

So with the results I figure its more worth my time rebuilding and bombing the STI engine rather than the ej205 ..... Thoughts ?
So far i am up to removing the heads from the block .No problems so far
Even thought the cam gear bolts where a challenge to say the least .
But before i go any further stabbing in the dark

i have a couple of questions i hope you guys could help me out with

What engine do i have version wise ?
The two stamped numbers on the block are as follow
627202629187
569568
W
here can i find the re bolting torque specs for all bolts involved in the rebuilding process ?
thank you ,

Search for workshop manuals on this site, there's plenty of links.

The best way to tell which 'Sti' motor you have is to slip a piston out & post some images of said piston for us to I.D what 'flavour' it is.

Also tell us if the cam buckets had the shim on top or underneath or no shim at all.

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[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]

Cheers rossco
The heads should be off by the end of the week ,
Will post pics of both the heads and pistons .

As requested , pic's
Got the left side head off today .
[/IMG]

pic's are up

We need to see the underside of a piston to see if it's forged or cast, also removed the head gasket from the block so we can see if it's open deck, semi-open or closed deck.

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[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]

Sorry should of thought of that :/
Where can I get the tool for removing the c clips to the pistons ?

Just a pair of circlip pliers?
Should be able to get them from most hardware and automotive stores.

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Really ? , cool one of my mates said it was a real fuck around with out it ? But if they come out with normal circlip pliars I am cooking with gas

pic with gasket off
under the piston pic will have to wait until tomorrow