Welcome to the North American Subaru Impreza Owners Club Sunday November 23, 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 Technical > Normally Aspirated Powertrain

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 12-08-2008, 09:09 PM   #1
jrobe
Scooby Newbie
 
Member#: 172156
Join Date: Feb 2008
Chapter/Region: MWSOC
Location: Westfield WI
Vehicle:
1995 Legacy LS Wagon
blue

Default 2.2 lifters collapsed, now rough idle

My 95 2.2 got the tick the other day after I put some high mileage oil in. I figured the detergents in the oil broke free some crud. Went I pulled the valve cover all 4 on top were collapsed. I filled them with oil and fired it up and it idled so rough it shook the whole car for a couple of minutes then it idled smooth and 15 minutes later the tick was back.

I pulled them again all 4 were collapsed again, pumped them up and it idled rough again for a few minutes till it would smooth out.

What could make it do that? and there is no CEL

thanks Jeff
* Registered users of the site do not see these ads.
jrobe is offline   Reply With Quote
Old 12-11-2008, 10:54 PM   #2
jrobe
Scooby Newbie
 
Member#: 172156
Join Date: Feb 2008
Chapter/Region: MWSOC
Location: Westfield WI
Vehicle:
1995 Legacy LS Wagon
blue

Default

anyone?
jrobe is offline   Reply With Quote
Old 12-11-2008, 11:03 PM   #3
rivman05
Scooby Specialist
 
Member#: 159986
Join Date: Sep 2007
Chapter/Region: AKIC
Location: YK Delta
Vehicle:
1994 Acura Integra
Milano Red

Default

just curious, wat weight is the oil ur running? synthethic or conventional? i did that ot my 72 buick 455, and the same thing happened, swap to a lil thicker oil. the lighter stuff gets around better, but doesnt hold up for lifters too well it seems. also remember that synthetic is much lighter, the 20/50 weight moves like 5/30 conventional. just things to think about.
rivman05 is offline   Reply With Quote
Old 12-12-2008, 11:14 AM   #4
Tim Sanderson
Scooby Guru
 
Member#: 6486
Join Date: May 2001
Chapter/Region: MWSOC
Location: S.E. wisconsin
Vehicle:
00 Impreza 2.5 RS
Blue Ridge Pearl

Default

Low oil pressure maybe?

You may just need to replace the hla's. You could try adding 1/2-1 qt. of atf in your oil for a short time to loosen all the gunk. Obviously then do an oil change.
Tim Sanderson is offline   Reply With Quote
Old 12-12-2008, 12:17 PM   #5
jrobe
Scooby Newbie
 
Member#: 172156
Join Date: Feb 2008
Chapter/Region: MWSOC
Location: Westfield WI
Vehicle:
1995 Legacy LS Wagon
blue

Default

I put Mobil 1 high mileage, I think it was 10w 40. The motor only has 80K and runs great besides the lifter. Right now I do have 3qt of atf in it. I'm not driving it, just starting it up and letting it run every now and then. When I put it on the road I am going to run Rotella syn 5w 40.

It's the running rough(missing) when I get it back together that makes me wonder. Then after 5min it runs normal.

Jeff
jrobe is offline   Reply With Quote
Old 12-12-2008, 09:05 PM   #6
Counterfit
Scooby Guru
 
Member#: 124254
Join Date: Aug 2006
Chapter/Region: NESIC
Location: Rhode Island
Vehicle:
2006 06 SGM Slowbaru
"The Scoobinator"

Default

What weight is recommended in the manual? 10w40 seems kind of high, especially for December in Wisconsin...
Counterfit is offline   Reply With Quote
Old 12-13-2008, 09:26 AM   #7
John*G
Scooby Specialist
 
Member#: 19562
Join Date: Jun 2002
Chapter/Region: NESIC
Location: VT
Vehicle:
95 coupe
red

Default

You have to pull out the HLA's and pump them up manually in a oil bath. If they won't pump up they are shot. Which I guess you have done. Having four go at once is odd though. I worked on a car a while back that had a plugged up rocker arm assembly. Several of the tiny oil feed holes to the HLA's in the rocker arms where plugged with tiny metal splinters , one in each. I don't think it even blocked the feed hole entirely. Unfortunately the HLA's where ruined from running dry.
John
John*G is offline   Reply With Quote
Old 12-13-2008, 11:17 PM   #8
jrobe
Scooby Newbie
 
Member#: 172156
Join Date: Feb 2008
Chapter/Region: MWSOC
Location: Westfield WI
Vehicle:
1995 Legacy LS Wagon
blue

Default

The 10w 40 I was running was syn oil.

I am taking them out and pumping them back up. It will run like crap at idle for a few minutes and then smooth out and run tick free for as long as I let it run. When I come back the next day it ticks again.

I figure the only way 4 can collapse at a time is some blockage, which I can't find.

The thing that baffles me is why would it run rough after I pump them up.
jrobe is offline   Reply With Quote
Old 12-14-2008, 03:07 PM   #9
piperpilot26
Scooby Newbie
 
Member#: 197453
Join Date: Dec 2008
Default

try 10w 30, its more or less something blocking the oil passages. or mabye its an oil pump issue? the rough idle thing I'm not getting either.
piperpilot26 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
Missed a shift and now rough idle?? mcganz121 Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 11 06-01-2008 06:13 PM
New Spark Plugs... now rough idle??? bmw50021 Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 30 12-02-2006 02:04 PM
rough idle, and now no start quadtard Service & Maintenance 19 06-27-2006 02:12 AM
Sudden change in quality of idle, now rough -=Ice-T=- Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 8 06-29-2005 11:13 PM
Mobil-One oil change, now rough idle blackdog Newbies & FAQs 22 10-29-2003 02:06 PM


All times are GMT -4. The time now is 03:40 AM.


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.