Welcome to the North American Subaru Impreza Owners Club Tuesday September 26, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 11-27-2015, 07:47 PM   #1
GCswappe
Scooby Newbie
 
Member#: 428970
Join Date: Aug 2015
Vehicle:
1995 STIL Wagon

Default Bought a 257 swap, got screwed!

I bought a 2007 ej257 swap and got screwed! Paid a lot for it and it has a busted piston. At least I can drive to their shop and bitch in person. Any advice on a cheap rebuild just to get it running again? I know these parts ar probably junk but can I use this kit to get my motor going again while I save for the good stuff?

http://m.ebay.com/itm/Fits-04-06-Sub...131?nav=SEARCH


Dont need anything better than stock just a running motor while I save for another. I already had all my wiring redone and just need it driving.
Can I replace just the bad piston? How do I know what size pistons to order?
What other surprises might I encounter? Head damage?
I tried using the search but it doesnt work on my phone so google searches is all ive come up with.

Any ides on the worst case and best case scenarios?


$20 borescope that plugs into phone saved me a lot of trouble!
* Registered users of the site do not see these ads.

Last edited by GCswappe; 11-27-2015 at 09:02 PM.
GCswappe is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 11-27-2015, 07:53 PM   #2
blue sedan
Scooby Specialist
 
Member#: 311622
Join Date: Feb 2012
Chapter/Region: Tri-State
Location: Pa.
Vehicle:
2010 WRX
WRB

Default

Wow. That's Ugly!
blue sedan is offline   Reply With Quote
Old 11-27-2015, 08:59 PM   #3
GCswappe
Scooby Newbie
 
Member#: 428970
Join Date: Aug 2015
Vehicle:
1995 STIL Wagon

Default

Quote:
Originally Posted by blue sedan View Post
Wow. That's Ugly!
Yep! Guess that $20 bore scope should have been ordered before I picked up the motor!
GCswappe is offline   Reply With Quote
Old 11-30-2015, 10:20 AM   #4
domep1ece
Scooby Newbie
 
Member#: 388162
Join Date: Apr 2014
Default

Judging by your picture, the motor is toast those pit marks are going to be in the cylinder walls as well as the head. You're looking at a head for the side that has the damaged piston and a sleeve job on the block to get it to the point where you can reassemble the thing.

That mizumo kit isnt going to help you because of the damage to the actual engine casing. if it was only a piston you could essentially just get a single used stock piston and be rolling again.
domep1ece is offline   Reply With Quote
Old 11-30-2015, 11:47 AM   #5
MrTris
Scooby Specialist
 
Member#: 346921
Join Date: Feb 2013
Chapter/Region: NWIC
Location: Tacompton
Vehicle:
2005 LGT
SWP

Default

#ynansb.

parts.bestbuysubaru.com

Order a 10103AC050 (new shortblock assy) and whatever master gasket kit for your year, this is the base of what you'll need to get back on the road. Should be about $2200 shipped to your door.

You won't know if the heads are toast until after you get everything torn down, but, start looking for new sets now, just in case. Expect to spend nearly $500/side.

Things to consider "upgrading" while you're there:

ARP headstuds, "cheap insurance" against any future hg failures: $185 (260-4701)

Oil pickup tube: Dealer: ~$20; Moroso: ~$90; Killer B (obviously the best, ~$170).
MrTris is offline   Reply With Quote
Old 11-30-2015, 05:01 PM   #6
JRead
Scooby Newbie
 
Member#: 435268
Join Date: Nov 2015
Default

really hope my engine doesn't look like this when I open it up in the next few days.
JRead is offline   Reply With Quote
Old 11-30-2015, 07:38 PM   #7
GCswappe
Scooby Newbie
 
Member#: 428970
Join Date: Aug 2015
Vehicle:
1995 STIL Wagon

Default

Quote:
Originally Posted by JRead View Post
really hope my engine doesn't look like this when I open it up in the next few days.
Best of luck to you!
GCswappe is offline   Reply With Quote
Old 11-30-2015, 07:50 PM   #8
GCswappe
Scooby Newbie
 
Member#: 428970
Join Date: Aug 2015
Vehicle:
1995 STIL Wagon

Default

Quote:
Originally Posted by domep1ece View Post
Judging by your picture, the motor is toast those pit marks are going to be in the cylinder walls as well as the head. You're looking at a head for the side that has the damaged piston and a sleeve job on the block to get it to the point where you can reassemble the thing.

That mizumo kit isnt going to help you because of the damage to the actual engine casing. if it was only a piston you could essentially just get a single used stock piston and be rolling again.
Thank you! I ordered some company 23 cam tools and will have the motor apart in a few days. Im going to hope i can get it limping along with the kit while I save for a new short block and head(s). I couldnt see any pitting on the walls or head (bore scope has a mirror attachment to see the heads/valves) but im sure you are right and wont buy the kit until i have the block open!
GCswappe is offline   Reply With Quote
Old 11-30-2015, 08:12 PM   #9
monkeyposeur
Scooby Specialist
 
Member#: 333468
Join Date: Sep 2012
Chapter/Region: RMIC
Location: SLC, UT
Vehicle:
1993 SS
03 WRB GD 205/22T 20G-XT

Default

So what did the shop say when you talked to them? You're just gonna waste $600 if you buy that kit. Who knows what your PTW clearances will be. Too tight and the motor will seize up once it warms up to temp.
monkeyposeur is online now   Reply With Quote
Old 12-01-2015, 05:49 AM   #10
some dude
Scooby Specialist
 
Member#: 100300
Join Date: Nov 2005
Chapter/Region: MWSOC
Location: MIC|-|IG/\N
Vehicle:
06 WRX
CGM

Default

Sounds ****ty. Shop sold you a engine that they said was good, and it wasn't?
some dude is offline   Reply With Quote
Old 12-01-2015, 10:49 AM   #11
GCswappe
Scooby Newbie
 
Member#: 428970
Join Date: Aug 2015
Vehicle:
1995 STIL Wagon

Default

Quote:
Originally Posted by some dude View Post
Sounds ****ty. Shop sold you a engine that they said was good, and it wasn't?
Yep...!
GCswappe is offline   Reply With Quote
Old 12-01-2015, 10:54 AM   #12
GCswappe
Scooby Newbie
 
Member#: 428970
Join Date: Aug 2015
Vehicle:
1995 STIL Wagon

Default

Quote:
Originally Posted by monkeyposeur View Post
So what did the shop say when you talked to them? You're just gonna waste $600 if you buy that kit. Who knows what your PTW clearances will be. Too tight and the motor will seize up once it warms up to temp.
Yeah.... i was being hopefull. I bought a parts car with a strong N/A 2.2 for $300 just to have it on the road. Im selling off some of the parts and Im going to sleeve the 257 block and make it a monster. I dont have 10k to drop but $3-500 a month should get me there eventually.

Im just going to pretend i was planning on a crazy build from the beginning... hurts less that way...
GCswappe is offline   Reply With Quote
Old 12-01-2015, 08:22 PM   #13
knuckleduster271
*** Banned ***
 
Member#: 208697
Join Date: Apr 2009
Default

The mizumo parts are pretty good.
Ive used a handful of their timing kits\water pumps.
I personally wouldnt use the headgaskets though- at the very least buy some victors- preferably oem hg's. Every other gasket\seal in that kit will be perfectly fine. Theres plenty of bad reviews for the evergreen\mizumo hg's blowing prematurly online even on naturally aspirated engines.
knuckleduster271 is offline   Reply With Quote
Old 12-02-2015, 01:02 AM   #14
monkeyposeur
Scooby Specialist
 
Member#: 333468
Join Date: Sep 2012
Chapter/Region: RMIC
Location: SLC, UT
Vehicle:
1993 SS
03 WRB GD 205/22T 20G-XT

Default

Quote:
Originally Posted by GCswappe View Post
Im selling off some of the parts and Im going to sleeve the 257 block and make it a monster. I dont have 10k to drop but $3-500 a month should get me there eventually.

Im just going to pretend i was planning on a crazy build from the beginning... hurts less that way...
Look into a closed deck block from IAG or Outfront before you decide on sleeving. Not many shops know how to do a proper sleeve and sometimes it take multiple rebuilds to get the sleeves placed properly.

Depending on your power goals a new OEM shortblock may suffice.
monkeyposeur is online now   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 01:12 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.