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03-31-2010, 06:26 PM | #1 |
Scooby Newbie
Member#: 127164
Join Date: Sep 2006
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:05 WRX STi OBP |
My STi burned 2 and half quarts of oil in 800 miles??? Catch can = full
Ok so I am going out of my mind here. My car used up 2 and half quarts in about 800 miles. I did my oil change 800 miles ago, filled it up and it was all good, emptyd my catch can and changed my oil filter. I put in Redline 5W30 every oil change. I do the oil change my self and I do it under 3k miles every time. I included some pictures of my catch can... It was litteraly full and the crap was going back into the intake. I don't know why it fills up so fast and no idea where my oil is going. It's not leaking at least no spots on the ground and when I change my oil its really clean under.
My car runs good no issues with power. I do drive my car differently than other people. Theres no day that the car doesen't see high rpms. I always check my liquids before driving it. I run RomRaider logger no matter where I drive. Any ideas? Here are some catchcan pictures... This was made in 800 miles.
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03-31-2010, 06:29 PM | #2 |
Scooby Newbie
Member#: 190753
Join Date: Oct 2008
Location: everywhere
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damn thats milky. Do a leak down test.
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03-31-2010, 06:34 PM | #3 |
Scooby Specialist
Member#: 240161
Join Date: Mar 2010
Chapter/Region:
MAIC
Location: MD
Vehicle:2002 wrx wagon R.I.P 87 bmw e30, 2013 BRZ |
^i deff suggest a leak down test. my car did something like this about a year ago i dont have a catch can but it burnt a quart of oil in like 500 miles. all i did was change the pvc valve and changed my oil and it never happened again.
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03-31-2010, 06:45 PM | #4 |
Scooby Newbie
Member#: 190753
Join Date: Oct 2008
Location: everywhere
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the fact its so milky makes me wonder if its a headgasket. It very well could be as simple as a pcv, but....god damn thats milky as all hell. I burn half a quart of oil every 5k if that. i push my car harder then most, I use penzoil platnium 5w30. 33k on dash currently.
OP is your radiator reservoir milky colored? |
03-31-2010, 07:24 PM | #5 | |
Scooby Newbie
Member#: 127164
Join Date: Sep 2006
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:05 WRX STi OBP |
Quote:
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03-31-2010, 07:27 PM | #6 |
Scooby Newbie
Member#: 190753
Join Date: Oct 2008
Location: everywhere
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03-31-2010, 07:34 PM | #7 |
Scooby Guru
Member#: 150794
Join Date: Jun 2007
Chapter/Region:
SCIC
Location: Bakersfield, CA
Vehicle:Qcab dakota 4x4 LT1 Formula Firebird |
It's normal to 'catch' more during the winter months. However, that much blow-by has me wondering about the condition of one or more pistons.
Hate to say it, you are describing the first symptoms of my old shot 2.0 |
03-31-2010, 09:05 PM | #8 |
Scooby Newbie
Member#: 127164
Join Date: Sep 2006
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:05 WRX STi OBP |
I just went to the shop. They told me the compression is low. They said the ring land on the piston is shot. It would cost me 4500$ with forget pistons. This is not looking good for me. I don't have this kind of money at the moment. Any other routes I can go?
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03-31-2010, 09:23 PM | #9 |
Scooby Specialist
Member#: 210923
Join Date: May 2009
Chapter/Region:
South East
Location: South Florida
Vehicle:2002 Bug-Attack 15 slow STI |
used sti engine??? or block??
http://cgi.ebay.com/ebaymotors/Subar...Q5fAccessories http://cgi.ebay.com/ebaymotors/ENGIN...Q5fCarQ5fParts Last edited by davidsti1; 03-31-2010 at 09:32 PM. |
03-31-2010, 09:43 PM | #10 |
Scooby Newbie
Member#: 127164
Join Date: Sep 2006
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:05 WRX STi OBP |
Wow thanks on those links!
Is it really true the ring land can go on a 68k mile motor that's been only stg 2 for around 30k miles? |
03-31-2010, 11:05 PM | #11 |
Scooby Specialist
Member#: 222318
Join Date: Sep 2009
Chapter/Region:
E. Canada
Location: Montreal
Vehicle:1993 RHD GC8 Silver |
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03-31-2010, 11:17 PM | #12 |
Scooby Newbie
Member#: 127164
Join Date: Sep 2006
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:05 WRX STi OBP |
So putting in a new block would fix this? I honestly can't pay $4500 just for forged pistons and couple of gaskets. New block is 2k shipped, I have a friend who can put it in and it wouldn't cost me more than 2.5k... sure beats 4500$ and I get a new block, pistons, rods, etc.
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04-01-2010, 01:20 AM | #13 |
Scooby Specialist
Member#: 238843
Join Date: Feb 2010
Chapter/Region:
MAIC
Location: For Sale - Wanted Section
Vehicle:1997 Honda Accord |
Why are you using the Blue, could have sworn Subaru said not to!
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04-01-2010, 01:21 AM | #14 | |
Scooby Specialist
Member#: 204291
Join Date: Feb 2009
Chapter/Region:
BAIC
Location: Central CA
Vehicle:20 Corolla Hybrid BMW R9T |
Quote:
Think about it real hard. Spend the little extra to do it right. It might cost you more in the end. 2k for a block and 500 for forged pistons. 300+awhp isn't a crazy figure, but it still falls under the "not IF your engine will go, but WHEN" parameters. Make absolute sure that who ever is doing the work does it well. Not just everyone can build a motor right. Good luck with your build man. I too am waiting for the WHEN. |
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04-01-2010, 01:28 AM | #15 |
Scooby Specialist
Member#: 238843
Join Date: Feb 2010
Chapter/Region:
MAIC
Location: For Sale - Wanted Section
Vehicle:1997 Honda Accord |
Man search hiis threads... This problem goes back to last year along with a load of other problems. Mbc and the bov probably shouldn't be on there op.....
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04-01-2010, 10:31 AM | #16 |
Scooby Newbie
Member#: 100148
Join Date: Nov 2005
Chapter/Region:
Tri-State
Location: South Jersey
Vehicle:2003 WRX Wagon Silver |
If you're going to just throw in another stock block I'd at least figure out why this happened in the first place. Do you have a good tune (verify with a wideband)? Using the right oil? Maybe you're beating on the car a little too hard.
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04-01-2010, 10:52 AM | #17 | |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
Quote:
You can get a new stock shortblock for about $1600, pistons for about $400, gaskets for about $200. New timing belt, idlers and water pump for another few hundred...you're looking at under $3k for the whole thing, including a new block. If you reuse your block, you can get it bored/honed, new bearings, pistons, timing belt, idlers, etc for under $2k. You do not want another OEM block though, there is ZERO reason to stay with OEM pistons at this point, they are the weak link by far, and are the reason you're in your current situation. |
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04-01-2010, 11:45 AM | #18 | |
Scooby Newbie
Member#: 127164
Join Date: Sep 2006
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:05 WRX STi OBP |
Quote:
I don't want anything crazy right now. This is my daily driver. Yes I drive my car pretty hard but right now I'm not looking for more power. I am going to have them print out an estimate because $4500 is too much for me at the moment. The $4500 is with my block, its not a new block so yeah. |
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04-01-2010, 11:53 AM | #19 | |
Scooby Guru
Member#: 88618
Join Date: Jun 2005
Chapter/Region:
SCIC
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Quote:
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04-01-2010, 12:00 PM | #20 |
Scooby Newbie
Member#: 127164
Join Date: Sep 2006
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:05 WRX STi OBP |
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04-01-2010, 12:02 PM | #21 |
Scooby Specialist
Member#: 200288
Join Date: Jan 2009
Chapter/Region:
BAIC
Location: East Bay Area, CA
Vehicle:2002 Impreza WRX World Rally Blue |
30k out of forged pistons... That figure is a bit exagurated... But all you have to do is take out the weak link, which are the pistons. That's $1600 for a new block, plus another $400 for forged pistons. And you can get everything put together for around $2500, vs $4500. That's a big difference
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04-01-2010, 12:26 PM | #22 | |
Scooby Newbie
Member#: 127164
Join Date: Sep 2006
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:05 WRX STi OBP |
Quote:
I am going to have the estimate printed out to see everything and why it's so expensive. |
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04-01-2010, 12:31 PM | #23 |
Scooby Specialist
Member#: 115276
Join Date: May 2006
Chapter/Region:
MWSOC
Location: Joplin, MO
Vehicle:98 v9 RSTI 207 + rotated 30r |
30k on forged pistons is a figure for cars with VERY high horsepower applications. Its because no one runs stock turbo/tune with forged pistons. If someone were to and the block was built correctly it will last much longer than stock.
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04-01-2010, 04:56 PM | #24 | |
Scooby Newbie
Member#: 127164
Join Date: Sep 2006
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:05 WRX STi OBP |
Quote:
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04-01-2010, 05:12 PM | #25 | |
Scooby Specialist
Member#: 200288
Join Date: Jan 2009
Chapter/Region:
BAIC
Location: East Bay Area, CA
Vehicle:2002 Impreza WRX World Rally Blue |
Quote:
if you buy an oem block guess who assembles it and swapping out your pistons is actually much easier than you think. if you look in the built motor forum stickies, they show a few project builds and how-to's although, you will need time, space, and the right tools. |
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