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02-23-2009, 01:11 PM | #1 |
Scooby Specialist
Member#: 16523
Join Date: Mar 2002
Chapter/Region:
MWSOC
Location: Anti-Russian Aggression Zone
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OMG!
I was driving home, taking a downward slope onramp and gave it some gas when she sputtered and the engine shut off. While coasting, I tried to start it a few times and finally just pulled to the side. The car still started and ran like utter crap, knocking and sputtering like all hell. The shop today told me there's little to no compression on both passenger side cylinders and my engine may be dead at 128k miles. I could either pay $2500 for a used engine plus labor, or have him crack it open to see if they can save her. She's a 2000 RS in Sedona Red (a very rare color) body still in good condition but she could use a paint job on the hood and trunk, just installed brand new 4 pots front new calipers rear and WRX rotors all around. My EJ25 has aftermarket cams & Valve Springs installed, but other than that the internals are stock. What should I do?
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02-23-2009, 01:37 PM | #2 |
Scooby Specialist
Member#: 152117
Join Date: Jun 2007
Chapter/Region:
SCIC
Location: Hills Have Eyes
Vehicle:2012 Ford F150 ECO White |
try and save the heads and either have a new block built for way less than 2500 with high compression pistons and balanced. And see how that goes or just do what i did and find one used from a junkyard. i'm at about 1500 right now for a newer motor installed with some new goodies.
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02-23-2009, 02:21 PM | #3 |
Scooby Specialist
Member#: 16523
Join Date: Mar 2002
Chapter/Region:
MWSOC
Location: Anti-Russian Aggression Zone
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Not looking to mod, unless I can find a WRX swap for less than what the car is worth...really just looking for what I can do to keep her.
I love my scoob and hate to lose my pretty girl. |
02-23-2009, 02:46 PM | #4 |
Scooby Specialist
Member#: 152117
Join Date: Jun 2007
Chapter/Region:
SCIC
Location: Hills Have Eyes
Vehicle:2012 Ford F150 ECO White |
you good sir have a PM
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02-24-2009, 12:44 AM | #5 |
Scooby Specialist
Member#: 171859
Join Date: Feb 2008
Chapter/Region:
MAIC
Location: Virginia Beach, VA
Vehicle:2005 WRB STI Ripping and Scraping |
do a wrx swap or sti swap
v8))~ |
02-24-2009, 08:07 PM | #6 |
Scooby Specialist
Member#: 165749
Join Date: Dec 2007
Location: Detroit, MF'er!
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if both pass cyls have no compression, id bet you bent valves due to a timing belt slip. how long ago did you do the cams/have the timing belt off? cant imagine you blew rings/ringlands on two cyl at the same time. id give you an hour to gather a crowd and then kiss your ass if that happened.
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02-24-2009, 08:13 PM | #7 |
Scooby Guru
Member#: 120
Join Date: Jul 1999
Chapter/Region:
AKIC
Location: Where the Navy sends me...
Vehicle:1997 Legacy 2.5GT 1996 Impreza coupe |
Yeah, it does sound to me like a timing belt slip.
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02-25-2009, 01:42 AM | #8 |
Scooby Specialist
Member#: 71462
Join Date: Sep 2004
Chapter/Region:
MWSOC
Location: Des Moines, IA
Vehicle:2001 2.5rs STM |
I just went and found a used on, i spent 800 for engine tranny clutch rear diff out of a 2005 outback, with only 25k miles
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02-25-2009, 11:28 AM | #9 |
Scooby Newbie
Member#: 120658
Join Date: Jul 2006
Chapter/Region:
MWSOC
Location: Omaha, NE
Vehicle:01 LGT Ltd |
Another possibility is just that the head gasket failed between the two cylinders and is allowing compression to blow back and forth between them.
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02-25-2009, 11:46 AM | #10 |
Scooby Guru
Member#: 60082
Join Date: Apr 2004
Chapter/Region:
MWSOC
Location: Minnesota
Vehicle:2004 Forester STI Silver |
125k + original timing belt (he didn't mention any past work here) seems kind of obvious...unless he's had it done around 100k...
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02-25-2009, 10:58 PM | #11 | |
Moderator Member#: 922
Join Date: Feb 2000
Chapter/Region:
MWSOC
Location: Schaumburg, IL
Vehicle:16 WRX (white) 04 FXT (red) |
Quote:
Do like me? I wouldn't suggest it to everyone, but it's a cheap fix for the temporary. (yeah, I treat mine worse than I'd ever treat anyone else's) |
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12-10-2010, 06:12 PM | #12 |
Scooby Specialist
Member#: 16523
Join Date: Mar 2002
Chapter/Region:
MWSOC
Location: Anti-Russian Aggression Zone
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I know this is old but for anyone elses benefit, you guys were correct. The timing belt pulley froze for a bit and the belt jumped a tooth. Then Mr. Piston said hello to Ms. Valve, but they weren't much of a match and butted heads.
Bent valves and a new engine later, I'm running.....with a busted MAP Sensor. (not the fault of the new engine. this sensor came off my old one) |
12-10-2010, 07:05 PM | #13 |
Scooby Guru
Member#: 60082
Join Date: Apr 2004
Chapter/Region:
MWSOC
Location: Minnesota
Vehicle:2004 Forester STI Silver |
As far as I've read, it takes several teeth off to start causing issues.
It's tough to say why you don't have compression outside of actually finding out what's broken. |
12-10-2010, 11:08 PM | #14 |
Scooby Newbie
Member#: 211213
Join Date: May 2009
Chapter/Region:
Tri-State
Location: q / li
Vehicle:99 obs gf |
check the timing those plastic pulley may have spun
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12-10-2010, 11:12 PM | #15 |
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Join Date: Sep 2004
Chapter/Region:
MWSOC
Location: Licking County, Ohio
Vehicle:2005 2.5RS Wagon Regal Blue Pearl |
Getting the cam out of time with the crank almost, but not quite, enough to smack the piston into the valves will cause the engine to stop and cause a compression gauge to read 0 or damned close to it. Compression gauges really don't reliably read much of anything below 30-35psi and you can stay well below that if you're closing the intake valve much later than it should.
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