Welcome to the North American Subaru Impreza Owners Club Saturday October 25, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Subaru Models > Legacy Forum

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 09-07-2005, 08:25 PM   #1
EastsideLegacy
Scooby Newbie
 
Member#: 58806
Join Date: Apr 2004
Location: New york
Vehicle:
1998 RIP Legacy2.5GT
2.2L legacy wagon

Default low compression like whoa

Ok, Heres the story. First we got the heads off my old motor and got them cleaned up and put the car back together with new gaskets tourqed to the specs. Then we had like 50 pounds of compression in the 2nd cylinder. So we got another motor while we fix this one. Now i have the same motor that has only 72 thousand miles on it and cylinder 1 and 3 now have low compession.

I suspect that the first motor has bent valves ......but the second motor this is just unbelivable...

What might cause the low compression other than a bent valve or a cracked head ... if timing was off would this effect the compression in one side ....because im positive i did the timin right ...

I havent had my car for so so long and it sucks driving the camery.. so anyone if you have had the same problem or have any idea what the problem is any input helps beause my cars just sitting in the garage waiting to be fixed ...


Thanx main
* Registered users of the site do not see these ads.

Last edited by EastsideLegacy; 09-07-2005 at 09:04 PM.
EastsideLegacy is offline   Reply With Quote
Old 09-08-2005, 10:17 AM   #2
EastsideLegacy
Scooby Newbie
 
Member#: 58806
Join Date: Apr 2004
Location: New york
Vehicle:
1998 RIP Legacy2.5GT
2.2L legacy wagon

Default

bump..
EastsideLegacy is offline   Reply With Quote
Old 09-08-2005, 11:05 AM   #3
bhall
Scooby Newbie
 
Member#: 56015
Join Date: Feb 2004
Chapter/Region: RMIC
Location: Denver, CO
Vehicle:
No you're a towel!

Default

I have nothing for you except maybe try over at the NA forum. Hopefully those guys can help you out.
bhall is offline   Reply With Quote
Old 09-08-2005, 11:26 AM   #4
Russell Rogers
Scooby Specialist
 
Member#: 27261
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Wa
Vehicle:
1999 www.prjct1.com
I'm Ron Burgundy?

Default

piston rings, headgasket, craked block, cracked piston, bent rod, bent valve, did you do a compression test or a leak down test. Try a leak down test next. It tells alot mor than a compression test.
Russell Rogers is offline   Reply With Quote
Old 09-08-2005, 12:10 PM   #5
plasticguy
Scooby Newbie
 
Member#: 70345
Join Date: Sep 2004
Default

if the timing belt is not installed correctly, or slipped, you will get crazy low compression on two or four cylinders depending upon the error

many have been sure they did the timing right, and have nevertheless done it wrong

check the dot-versus-arrow on the crank pulley for a mistake, count teeth, do it all over again

btw what motor ?
plasticguy is offline   Reply With Quote
Old 09-08-2005, 08:47 PM   #6
sha_zapple
Scooby Specialist
 
Member#: 41012
Join Date: Aug 2003
Chapter/Region: E. Canada
Vehicle:
1998 Legacy L

Default

The head could be warped
sha_zapple is offline   Reply With Quote
Old 09-08-2005, 08:48 PM   #7
EastsideLegacy
Scooby Newbie
 
Member#: 58806
Join Date: Apr 2004
Location: New york
Vehicle:
1998 RIP Legacy2.5GT
2.2L legacy wagon

Default

Thanks for all the help ... it was the timing oh well im just so happy that its in and working nicely yea i got a whole differnt motor and now i relize i think the timing was wrong on the first one .... hmm weeellll llll all i gotta say is dont be too cocky about the timing and subarus are da bomb


Its a legacy 2.5 block nothing special i ordered cams fo it from twe but they said that they couldnt locate cores to make them outta and i didnt have the time to send mine in... oh well now i have a set of cams i can send once i get the freakin money .... thanx peoples


Thanx main
EastsideLegacy is offline   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

Similar Threads
Thread Thread Starter Forum Replies Last Post
this what a low compression look like eng4280 Mid West Subaru Owners Club Forum -- MWSOC 18 04-15-2010 01:05 AM
Low Compression/High Boost vs High Compression/Low Boost? JoeTX Newbies & FAQs 31 05-18-2006 04:06 PM
What to do? High Compression, Low Boost or Low Compression, High Boost. FlooredSubaru Normally Aspirated with bolt-on Forced Induction Powertrain 6 01-29-2003 10:55 AM
Tuning hp and torque curve w/ low compression and high compression pistons FuJi K Normally Aspirated with bolt-on Forced Induction Powertrain 22 10-14-2001 07:25 PM


All times are GMT -4. The time now is 06:33 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.