Welcome to the North American Subaru Impreza Owners Club Sunday December 21, 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 > Service & Maintenance

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 05-23-2012, 06:20 PM   #1
LegacyWRX
Scooby Newbie
 
Member#: 127048
Join Date: Sep 2006
Chapter/Region: NESIC
Location: Androsscogin
Vehicle:
97 Impreza coupe
blue

Default Spitting steam/smoke out of the block after HG replacement

So I am working on an 07 Outback with the 2.5n/a sohc engine. It had a failed timing belt idler and ended up jumping teeth and bent the exhaust valves on the passenger head. While I was in replacing those I figured I'd do head gaskets on both sides.
Going together everything seemed to be going pretty well. I cleaned up as best as I could and put a bit of oil on and around the head bolt heads/washers. Followed the torque procedure.
The only thing that was off is it seemed like a couple of the bolts had some grit under them and were 'jumpy' when they were getting tightened. Some of them were nice and smooth. Others would have big jumps/clicks while some of the others went much smoother. The pass. head had this going on worse than the drivers head. I think this might have messed up the torque procedure.
When I was finished, the car started right up and sounded real smooth; burnt off a bit of coolant that got into the cylinders and with in a couple minutes the exhaust was clear again, but it kept spitting steam out of the side of the cyl head at the gasket.
My plan is to get a straight edge and check the plane on the head and block and then thoroughly clean up the head bolts and go back together with a new HG. Just wondering if anybody else has had similar issues because I'm not sure if my diagnosis is correct. I followed the same procedure on both sides and the driver's head was not spitting steam.
* Registered users of the site do not see these ads.
LegacyWRX is offline   Reply With Quote
Old 05-23-2012, 06:31 PM   #2
Bacon117
Scooby Specialist
 
Member#: 118500
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Michigan
Vehicle:
02 Silver Wagon
"Stage 2"

Default

Get a thread chaser set and clean those threads! Anytime I assemble an engine, I chase the threads to get any crap out of them. When you are bolting anything together, what really matters is the clamping force, not necessarily the torque. But since you cannot measure clamp force, the only thing you can do is measure torque. So, if you have something that is increasing the friction at the threads, you are going to get higher bolt torque with lower clamping force.

A lot of head torque procedures will also list an angular method, in addition to torque. Not always, but sometimes. This method is better, in my opinion, since it takes changes in friction out of the equation.

http://www.google.com/search?q=threa...&ved=0CKEBEK0E
Bacon117 is offline   Reply With Quote
Old 05-23-2012, 06:33 PM   #3
MSMStannyl
Scooby Newbie
 
Member#: 267225
Join Date: Dec 2010
Chapter/Region: MAIC
Location: Baltimore, MD
Vehicle:
2011 WRX Limited 4DR
Satin White Pearl

Default

I am no real mechanic so don't take any advice to me. I'm just wondering if that could maybe just be some of the oil/coolant burning off of the heads as the block heats up?

How long did you leave it running? Did the "steam" ever subside at all or is it constant?

If it keeps going, my thinking would be the head gasket is definitely not seated properly as you still have coolant running in.

That's all I've got for ya. Good luck!
MSMStannyl is offline   Reply With Quote
Old 05-23-2012, 08:06 PM   #4
LegacyWRX
Scooby Newbie
 
Member#: 127048
Join Date: Sep 2006
Chapter/Region: NESIC
Location: Androsscogin
Vehicle:
97 Impreza coupe
blue

Default

Sounds like a good idea, Bacon. This procedure was an odd one, the 1st time I've dealt with angular torque sequence also. Going by memory its 29ft/lbs through the sequence, 51lbs through the sequence, then you loosen them up. (odd right? I don't understand why but I did it anyways), then you hit 31ft/lbs. From that point it switches over to the angular method your talking about (I think) it was 45 deg through the sequence, then 90 deg t.t.s. then another 45 deg on the center bolts.
Stan, I was thinking I spilt oil or coolant on the exhaust mani at 1st so I left it running long enough to get about 1/3 of the way to operating temp. When it was apparently not easing up a bit I investigated and saw the steam spitting right out from the gasket, on the back, lower side, next to the frame rail. Thanks for the input.
LegacyWRX is offline   Reply With Quote
Old 05-23-2012, 08:56 PM   #5
Elbert Bass
Scooby Newbie
 
Member#: 283429
Join Date: May 2011
Chapter/Region: South East
Location: South East TN
Vehicle:
1995 Chevy S-10
White

Default

Two possibilities: You didn't get the head properly aligned on the dowels and forced the head down with the bolts. -OR- more likely you got too much oil or coolant down in the head bolt holes in the block and that would explain the issue you had tightening the bolts. The fluids are trapped on the holes and the bolts aren't actually tightened properly.

Here's what I do. When cleaning carbon off the pistons and cleaning the block face I wash the bolt holes with brake cleaner. I have a piece of 1/4" pex tube that fits on my air gun. I put the tube all the way in the holes and blow out the cleaner. I do this twice. Then I oil the bolts - liberally on the heads and both sides of the washers. You don't want the threads dripping oil, just coated.

At our shop we don't tighten/loosen/tighten per the manual. We torque all six bolts to the highest torque stated for the final torque (25 or 32 ft. lb.) and then tighten 90 degrees two times. We have no problems with leaks or any other problem when using that method.
Elbert Bass is online now   Reply With Quote
Old 05-11-2014, 05:49 PM   #6
LegacyWRX
Scooby Newbie
 
Member#: 127048
Join Date: Sep 2006
Chapter/Region: NESIC
Location: Androsscogin
Vehicle:
97 Impreza coupe
blue

Default

Just to wrap up an old thread... I didn't allow enough time for the exhaust manifolds enough time to burn off all of the coolant and oil. I took the heads right off again after already having the engine running in order to check them. I re-installed and then just kept an eye on the coolant temp and oil pressure while listening closely and she cleared up. Haha,, super embarrassing and stressful.

TLDR - didn't let the spilt fluids burn off and changed the HGs twice.

serious xp points though.
LegacyWRX is offline   Reply With Quote
Old 05-11-2014, 09:14 PM   #7
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK Houston
we have an Uncle

Default

0_o

ow man...you GOTTA be KIDDING
Uncle Scotty is offline   Reply With Quote
Old 05-12-2014, 05:53 PM   #8
LegacyWRX
Scooby Newbie
 
Member#: 127048
Join Date: Sep 2006
Chapter/Region: NESIC
Location: Androsscogin
Vehicle:
97 Impreza coupe
blue

Default

It seemed like ALOT more smoke than I would've expected, and it went on for a while! Lessons were learned.
LegacyWRX is offline   Reply With Quote
Old 05-13-2014, 10:02 AM   #9
Bacon117
Scooby Specialist
 
Member#: 118500
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Michigan
Vehicle:
02 Silver Wagon
"Stage 2"

Default

You should be able to level up with all that EXP you gained!

I once replaced a fuel pump because I was out of fuel. In my defense, the gas gauge had broke...
Bacon117 is offline   Reply With Quote
Old 05-13-2014, 10:13 AM   #10
2Fast4U1DAY
Scooby Specialist
 
Member#: 250152
Join Date: Jun 2010
Chapter/Region: MAIC
Location: Pennsylvania
Vehicle:
2006 WRX Limited
OBP

Default

Quote:
Originally Posted by Bacon117 View Post
You should be able to level up with all that EXP you gained!

I once replaced a fuel pump because I was out of fuel. In my defense, the gas gauge had broke...
Did you replace the sender too? Lol
2Fast4U1DAY is online now   Reply With Quote
Old 05-13-2014, 10:15 AM   #11
Bacon117
Scooby Specialist
 
Member#: 118500
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Michigan
Vehicle:
02 Silver Wagon
"Stage 2"

Default

Nah, I was a poor college kid back then. I pulled the pump, looked in the tank, saw it was empty, did a facepalm, put the old stuff back in and got my money back.
Bacon117 is offline   Reply With Quote
Old 05-13-2014, 11:23 AM   #12
2Fast4U1DAY
Scooby Specialist
 
Member#: 250152
Join Date: Jun 2010
Chapter/Region: MAIC
Location: Pennsylvania
Vehicle:
2006 WRX Limited
OBP

Default

Quote:
Originally Posted by Bacon117 View Post
Nah, I was a poor college kid back then. I pulled the pump, looked in the tank, saw it was empty, did a facepalm, put the old stuff back in and got my money back.
Lol well at least you were smart enough to realize the tank was empty. I worked for an Audi dealer for a short time while I was in Tech school, and a customer had an older A4 1.8T that the sender went bad in. He brought it to us said it had a crank no start. He also told us that the sender was broken but didnt have the money to fix it at the moment. I dug into it only to find the tank was all but DEAD EMPTY. The customer tried to argue there was something else wrong with it so I tore it all apart AGAIN at his expense, and showed him there was no fuel in the tank. Dumped 5 gallons of fuel into it, put it all back together, and fired that pig right up. The customer was PISSED...
2Fast4U1DAY is online now   Reply With Quote
Old 05-13-2014, 11:29 PM   #13
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK Houston
we have an Uncle

Default

i bought a sentra REAL CHEAP from a lady who thought it was blowed up because the cel was on and it didnt wanna start.......i plugged in my acrton scanner and found it had the classic dead cam angle sensor....went and bought a new one for twentywhatever dollars and went back with a friend, popped the hood and replaced the sensor in a minit and got in and stared it and drove it away.....

felt bad that the lady had 'that look' on here face as i was drivin it away

yeah....oh well....
Uncle Scotty is offline   Reply With Quote
Old 05-14-2014, 12:15 AM   #14
norexyet
Scooby Specialist
 
Member#: 39149
Join Date: Jul 2003
Chapter/Region: Tri-State
Location: Wild Rides Race Cars
Vehicle:
11 elantra
yea i said elantra

Default

You tell the best stories.
norexyet is offline   Reply With Quote
Old 05-14-2014, 01:11 AM   #15
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK Houston
we have an Uncle

Default

Quote:
Originally Posted by norexyet View Post
You tell the best stories.

yeah...well....kinda a long story...but this lady had been convinced by somebody---NOT me....that the engine was blown and the car would never be the same if she got it fixed and she NEEDED to sell it and get another car

i really TRIED to tell here it was a simple fix....but she refused to believe it

i gave here $1k(she wanted $800) for a car that was worth the $5900 i got for it.....

but that look on her face when i didnt have a tow truck hafta haul it off and i just popped the hood and in a minute, drove it away

i DID try to tell her.....
Uncle Scotty is offline   Reply With Quote
Old 05-14-2014, 02:10 PM   #16
LegacyWRX
Scooby Newbie
 
Member#: 127048
Join Date: Sep 2006
Chapter/Region: NESIC
Location: Androsscogin
Vehicle:
97 Impreza coupe
blue

Default

Ahaa, I feel better now. My best find was a 99 Impreza wagon I picked up with timing that had jumped on one side because a bearing had blown out. It was running on only cyls 1&3 (or 2&4) and the other side had only jumped a tooth; enough to not run but not enough to evan bend valves. It must've just been a hard shift with a bit less tension on the belt at one point because everything was still holding together.

Replaced the belt/bearing and turned a $900 car into a $3200 car! Also, UScotty, it's not like you're just going to not buy that car. Definitely a sticky situation.

Last edited by LegacyWRX; 05-14-2014 at 02:18 PM. Reason: for smooth delivery
LegacyWRX 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
imagine getting out of the car after a 500 mile road trip and seeing that your tire.. Asinine Off-Topic 55 01-20-2012 06:14 PM
The Official White Smoke out of the exhaust thread mxpunk Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 6 11-24-2008 02:38 PM
blue smoke out of tail pipe after car sits for 48+ hours. Slowsoul Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 15 07-25-2007 01:21 PM
White smoke out of the exhaust? stryfewrx Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 4 07-18-2005 06:01 AM
White smoke out of the turbo? Subbieddie Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 21 12-09-2002 12:10 PM


All times are GMT -4. The time now is 09:05 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.