Notices
ScoobyNet General General Subaru Discussion

2008-2010 2.5ltr Engine Failures

Old Feb 26, 2013 | 10:59 AM
  #961  
APIDavid's Avatar
APIDavid
Former Sponsor
iTrader: (4)
 
Joined: Jul 2003
Posts: 6,377
Likes: 3
From: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Default

Originally Posted by Alan MaC
Cheers Boys,

Today i had a master classs presentation on Subaru Egines by Foresters Subaru in the West Midlands.

I got it the wrong way round!

They showed a closed block & how it is the short block of choice, themn the open block which was pants & then the semi closed block that tried to dig them out of the Pooh, I now understand after seeing them in the flesh and, having it explained to me.

No 3 Piston has cracked.

I have 3options.

1) Repair & make good no 3 piston.

2) Rebuild the semi closed block 2.5.

3) A new Small Block, which is completely Closed with oil jets.
Forged Wiseco pistons, centre mounted bearings on main thrust. Uprated oil pump & STI Forged Rods. Work with big block end & make good.

So I have gone for option 3, I canyt afford it, however, this STI is my pride & joy, I have NEVER scrimped on anything on this beauty.

Only the best for it.

I have given to go ahead to start & all being well pick it up next Friday afternoon, I 'll keep you posted.

ATVB.


Alan MaC

Good Luck !
Reply
Old Feb 26, 2013 | 11:03 AM
  #962  
APIDavid's Avatar
APIDavid
Former Sponsor
iTrader: (4)
 
Joined: Jul 2003
Posts: 6,377
Likes: 3
From: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Default

Originally Posted by dabiscuit
Thanks buddy for the concise answer. I understand getting a new de-cat down pipe could add another 30bhp without a remap. Is this true or would I still need another remap? I don't think I can justify another one.

Gosh a decat pipe that adds 30 hp !! - without mapping !

Where can I buy these? l'll take 50

David APi
Reply
Old Feb 26, 2013 | 11:10 AM
  #963  
APIDavid's Avatar
APIDavid
Former Sponsor
iTrader: (4)
 
Joined: Jul 2003
Posts: 6,377
Likes: 3
From: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Default

Originally Posted by chopperman
Could a 2.5 engine be re-sleeved to a 2.35 keeping its standard heads. If it were pinned or close deck inserts installed would it be as strong as the strokered ej22 and would this be cheaper or more expensive, or are there many other factors to it?
None of those solutions are ideal in my opinion.

The add in closed deck adaptors will be made of a different metal composition to the crankcase and the overall metal granularity will be inconsistent. The expected result is a different expansion rate of the two metals. That means a crack or as a minimum distortion.

2.5 heads are feasible on a 2.35 with a 97.5 mm bore, but there will be a potential problem with heads of 99.50 combustion chamber diameter on a 92.00 mm bore. I wouldn't do it- its asking for trouble.

The right way is a Closed deck block at 2.0 or 2.1 or a EJ22T block at either 2.2 or 2.35 and heads appropriate to the bore size. That way it has a good chance to work properly.

Might be an amount of frying pan and fire here running 2.5 heads on a smaller [ much ] bore.

David
Reply
Old Feb 26, 2013 | 12:17 PM
  #964  
Alan Jeffery's Avatar
Alan Jeffery
Scooby Regular
 
Joined: Nov 2006
Posts: 3,662
Likes: 0
From: Enginetuner.co.uk Plymouth Dyno Dynamics RR Engine machining and building EcuTek SimTek mapping
Default

Originally Posted by chopperman
Could a 2.5 engine be re-sleeved to a 2.35 keeping its standard heads. If it were pinned or close deck inserts installed would it be as strong as the strokered ej22 and would this be cheaper or more expensive, or are there many other factors to it?
As David said, not ideal.
In an ideal world, one would seek that which was ideal!
Re-Sleeving is a last resort for us, and only to be contemplated when you don't have any other options.
Reply
Old Feb 26, 2013 | 12:35 PM
  #965  
APIDavid's Avatar
APIDavid
Former Sponsor
iTrader: (4)
 
Joined: Jul 2003
Posts: 6,377
Likes: 3
From: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Default

In an ideal world, one would seek that which was ideal!

'Kin' 'ell Alan !! that's a bit profound !! you hoping to be pope or summat ?

David
Reply
Old Feb 26, 2013 | 05:08 PM
  #966  
Alan Jeffery's Avatar
Alan Jeffery
Scooby Regular
 
Joined: Nov 2006
Posts: 3,662
Likes: 0
From: Enginetuner.co.uk Plymouth Dyno Dynamics RR Engine machining and building EcuTek SimTek mapping
Default

Originally Posted by APIDavid
In an ideal world, one would seek that which was ideal!

'Kin' 'ell Alan !! that's a bit profound !! you hoping to be pope or summat ?

David
As my wife is still young and gorgeous, er, no thanks!
Reply
Old Feb 27, 2013 | 08:40 PM
  #967  
Alan MaC's Avatar
Alan MaC
Scooby Regular
 
Joined: Mar 2006
Posts: 1,770
Likes: 0
From: Worcs
Default

Originally Posted by APIDavid
Good Luck !
Cheers David, the previous owner had some nice work done on it by your good selves.


ATVB.



AM
Reply
Old Mar 4, 2013 | 09:53 PM
  #968  
sween1911's Avatar
sween1911
Scooby Newbie
 
Joined: Mar 2013
Posts: 1
Likes: 0
From: Pennsylvania, USA
Default

My first post on Scoobynet! Lots of great info here.

My Tale of Woe:

- 2009 Subaru Outback 2.5i 5-speed
- 64,000 miles on the clock
- Feb 2013 - took to dealer for oil change, told knocking sound is bottom end damage, needs new short-block $3000 - $5000
- Still fighting with dealer over any help since we're 4k miles out of powertrain warranty. Told engine damage result of not having service done. No help as of yet, but we're not done
Reply
Old Mar 15, 2013 | 10:03 PM
  #969  
Peedee's Avatar
Peedee
Scooby Regular
iTrader: (4)
 
Joined: Jun 2009
Posts: 2,168
Likes: 0
From: W / London
Default

Just been reading this thread.....definitely makes for scary reading!!
Reply
Old Mar 15, 2013 | 11:15 PM
  #970  
Littleted's Avatar
Littleted
Scooby Regular
 
Joined: Oct 2009
Posts: 4,069
Likes: 10
From: Leeds
Default

Yeah, I get rid of mine next month, but in its defence it's been bulletproof for 2 and a half years, can't fault it.

Unsure what I,ll get next but going to look towards Xmas for something on the company car list, pity subaru ain't on quite fancy that new forester.

Now if subaru did what vauxhall do and offer the lifetime 100k warranty that would get me interested.
I can always hope

Last edited by Littleted; Mar 15, 2013 at 11:16 PM.
Reply
Old Mar 16, 2013 | 01:57 AM
  #971  
chopperman's Avatar
chopperman
Scooby Regular
 
Joined: Dec 2010
Posts: 3,241
Likes: 0
Default

Originally Posted by Littleted
Yeah, I get rid of mine next month, but in its defence it's been bulletproof for 2 and a half years, can't fault it.

Unsure what I,ll get next but going to look towards Xmas for something on the company car list, pity subaru ain't on quite fancy that new forester.

Now if subaru did what vauxhall do and offer the lifetime 100k warranty that would get me interested.
I can always hope
My bet is if you looked into the terms and conditions that "lifetime 100k" warranty aint worth the paper its written on ! It's just a scam to sell dealership servicing and genuine parts at inflated prices.
Reply
Old Mar 16, 2013 | 10:58 AM
  #972  
rob84's Avatar
rob84
Scooby Regular
15 Year Member
iTrader: (5)
 
Joined: Jun 2006
Posts: 5,287
Likes: 12
From: somewhere out there
Default

Originally Posted by Littleted
Yeah, I get rid of mine next month, but in its defence it's been bulletproof for 2 and a half years, can't fault it.

Unsure what I,ll get next but going to look towards Xmas for something on the company car list, pity subaru ain't on quite fancy that new forester.

Now if subaru did what vauxhall do and offer the lifetime 100k warranty that would get me interested.
I can always hope
Subaru now offer 5 years or 100.000 mile warranty on all vehicles except the current range wrx sti
Reply
Old Mar 16, 2013 | 11:57 AM
  #973  
IggyRB320's Avatar
IggyRB320
Scooby Regular
iTrader: (9)
 
Joined: Nov 2008
Posts: 1,294
Likes: 0
From: South Wales
Default

Originally Posted by rob84
Subaru now offer 5 years or 100.000 mile warranty on all vehicles except the current range wrx sti
Nothing like confidence in their own product.....NOT!
Reply
Old Mar 16, 2013 | 03:56 PM
  #974  
SRSport's Avatar
SRSport
Scooby Regular
 
Joined: Jul 2009
Posts: 3,360
Likes: 0
From: North Yorkshire
Default

Is that unconditional and transferable or first owner only?
Reply
Old Mar 16, 2013 | 07:58 PM
  #975  
rob84's Avatar
rob84
Scooby Regular
15 Year Member
iTrader: (5)
 
Joined: Jun 2006
Posts: 5,287
Likes: 12
From: somewhere out there
Default

Originally Posted by SRSport
Is that unconditional and transferable or first owner only?
Transferable as far as I know.
Reply
Old Mar 16, 2013 | 10:09 PM
  #976  
mickp's Avatar
mickp
Scooby Regular
iTrader: (1)
 
Joined: Mar 2005
Posts: 1,395
Likes: 0
From: North West
Default

And I will bet it has loads of body swerves built in. Too little to late
Reply
Old Mar 16, 2013 | 11:22 PM
  #977  
subarufan12's Avatar
subarufan12
Scooby Newbie
 
Joined: Mar 2013
Posts: 3
Likes: 0
From: Plymouth
Default

Hi guys,

I have just put a deposit down on a 1 owner 59 plate WRX (230bhp) with 17,500 on the clock. Taking delivery this week, private sale from an elderly gent.

Reading this forum has made me a little nervous to say the least!! Am I likely to require deep pockets for engine work in the near future? Had a forester previously which seemed bomb proof, hence sticking with Subaru for this new purchase. Wish I had read all this first, the car is nigh on immaculate.

Any advice on checking it out, other than getting my deposit back?

Cheers for looking.
Reply
Old Mar 17, 2013 | 12:48 AM
  #978  
Don Clark's Avatar
Don Clark
Scooby Regular
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2003
Posts: 7,837
Likes: 834
From: Harpenden
Default

Originally Posted by subarufan12
Hi guys,

I have just put a deposit down on a 1 owner 59 plate WRX (230bhp) with 17,500 on the clock. Taking delivery this week, private sale from an elderly gent.

Reading this forum has made me a little nervous to say the least!! Am I likely to require deep pockets for engine work in the near future? Had a forester previously which seemed bomb proof, hence sticking with Subaru for this new purchase. Wish I had read all this first, the car is nigh on immaculate.

Any advice on checking it out, other than getting my deposit back?

Cheers for looking.
Welcome, the problems have mainly been with the STi model not the WRX.
Reply
Old Mar 17, 2013 | 10:28 AM
  #979  
subarufan12's Avatar
subarufan12
Scooby Newbie
 
Joined: Mar 2013
Posts: 3
Likes: 0
From: Plymouth
Default

Originally Posted by Don Clark
Welcome, the problems have mainly been with the STi model not the WRX.
Thanks, I was tempted by the STI but my sensible side kicked in. Fingers crossed it will be fault free. Got to say I am surprised at the amount of issues from what I have regarded up to now as a strong engine manufacturer.

Cheers,

Scott.
Reply
Old Mar 18, 2013 | 09:43 PM
  #980  
paulbu's Avatar
paulbu
Scooby Regular
 
Joined: Aug 2009
Posts: 410
Likes: 0
Default

Originally Posted by subarufan12
Thanks, I was tempted by the STI but my sensible side kicked in. Fingers crossed it will be fault free. Got to say I am surprised at the amount of issues from what I have regarded up to now as a strong engine manufacturer.

Cheers,

Scott.
I've had three 2.5 litres over the past four years, a WRXS 250 bhp, Sti 330 hatch and currently a 340 saloon, all trouble free motoring.
A few words of advice, only use 97 plus octane fuel, check the oil level on a regular basis and most importantly don't mess about with the car attempting to achieve what it wasn't designed for. Follow these rules and it's long odds against any engine failure, at least no more likely than with any other manufacturer's high performance models.
Reply
Old Mar 20, 2013 | 09:35 PM
  #981  
Alan MaC's Avatar
Alan MaC
Scooby Regular
 
Joined: Mar 2006
Posts: 1,770
Likes: 0
From: Worcs
Default

Engine now totally rebuilt.

2 litre bored out to 2.1 on the short block.

The hedaers were shagged complete new headers built.

I have been driving it for the last week and a bit.

I have NOT gone over 3,000 Revs as per Foresters Subaru instructions.

Oil change this Friday then i can open her up.

it feels a strong engine.

ATVB.

Alan MaC
Reply
Old Mar 20, 2013 | 09:48 PM
  #982  
vulnax999's Avatar
vulnax999
Scooby Senior
20 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: May 2003
Posts: 4,375
Likes: 11
Default

Are you sure that's bored out to give 2.1l, not stroked?

Glad it's going well , enjoy it!


A few runs up the revs on low boost / low strain will help run it in.
Reply
Old Mar 20, 2013 | 10:51 PM
  #983  
chopperman's Avatar
chopperman
Scooby Regular
 
Joined: Dec 2010
Posts: 3,241
Likes: 0
Default

Originally Posted by vulnax999
Are you sure that's bored out to give 2.1l, not stroked?

Glad it's going well , enjoy it!


A few runs up the revs on low boost / low strain will help run it in.
Yeah. You need to use about 0.5 bar of boost regularly to bed the rings in or it might end up an oil burner. I had a running in map put on mine which puts the engine under some load.
Reply
Old Mar 21, 2013 | 09:53 PM
  #984  
Alan MaC's Avatar
Alan MaC
Scooby Regular
 
Joined: Mar 2006
Posts: 1,770
Likes: 0
From: Worcs
Default

Cheer Boys< i will let you know tomorrow.

ATVB.,


AM
Reply
Old Mar 22, 2013 | 09:10 PM
  #985  
Alan MaC's Avatar
Alan MaC
Scooby Regular
 
Joined: Mar 2006
Posts: 1,770
Likes: 0
From: Worcs
Default

Definitely NOT Stroked & bored out to 2.1.

500 revs a week they say max.

So next week 3,500 the next 4,000 etc etc.

Then Jolly Green Monster time!


ATVB.

AM
Reply
Old Mar 22, 2013 | 09:21 PM
  #986  
chopperman's Avatar
chopperman
Scooby Regular
 
Joined: Dec 2010
Posts: 3,241
Likes: 0
Default

Originally Posted by Alan MaC
Definitely NOT Stroked & bored out to 2.1.

500 revs a week they say max.

So next week 3,500 the next 4,000 etc etc.

Then Jolly Green Monster time!


ATVB.

AM
When Paul Finch built mine he warned me against driving it like an old granny. I was told to keep it below 4k for 500 miles then gradually up the revs to about 5.5 then 6k for 1000-1500 miles. I was told to drive with some boost to bed the rings in. In fact when i had the running in map installed it was revved to near the red line briefly with only 400 miles on the new engine. I wouldn't get to paranoid about it. If its built properly it will be fine. after all race cars are thrashed straight away after a re-build.
Reply
Old Mar 22, 2013 | 09:52 PM
  #987  
Alan MaC's Avatar
Alan MaC
Scooby Regular
 
Joined: Mar 2006
Posts: 1,770
Likes: 0
From: Worcs
Default

Cheers For that< I think I will try a bit of fun pedal gradually then more and more.



ATVBV.


AM
Reply
Old Mar 25, 2013 | 09:05 PM
  #988  
Jack rod's Avatar
Jack rod
Scooby Regular
 
Joined: Mar 2013
Posts: 130
Likes: 0
From: Rossendale
Default

hi guys I am collecting my 2010 plate sti hatch on friday (29/03/13) what is the most effective way to combat this re-occuring issue. I dont mind spending a bit of money if i can add power and reliability. Im in the north west if that helps for places to go?
Reply
Old Mar 25, 2013 | 09:15 PM
  #989  
chopperman's Avatar
chopperman
Scooby Regular
 
Joined: Dec 2010
Posts: 3,241
Likes: 0
Default

Originally Posted by Jack rod
hi guys I am collecting my 2010 plate sti hatch on friday (29/03/13) what is the most effective way to combat this re-occuring issue. I dont mind spending a bit of money if i can add power and reliability. Im in the north west if that helps for places to go?
I don't think many have gone pop since the subaru re-map or bespoke map being installed. If tuning is in mind then forged pistons, APR head studs and cosworth head gaskets is the fix.
Reply
Old Mar 26, 2013 | 09:38 AM
  #990  
MOTORS S GT's Avatar
MOTORS S GT
Scooby Regular
15 Year Member
iTrader: (2)
 
Joined: Jan 2009
Posts: 1,261
Likes: 39
From: Northampton
Default

Originally Posted by chopperman
I don't think many have gone pop since the subaru re-map or bespoke map being installed. If tuning is in mind then forged pistons, APR head studs and cosworth head gaskets is the fix.
If only that was true, I have a 2010 Hatch STI engine in with ringland failure at the moment, & don't think the STI saloons are not prone either, I quoted on a failed one last week, which Subaru won't honour under warranty.
Reply

Thread Tools
Search this Thread

All times are GMT +1. The time now is 05:54 PM.