OFFROADSUBARUS.COM

Go Back   OFFROADSUBARUS.COM > Technical Forums > Under the Bonnet/Hood

Notices

Reply
Thread Tools Display Modes
  #1  
Unread 18th May 2014, 06:41 AM
crazydave crazydave is offline
Forum Member
 
Join Date: Mar 2012
Location: Perth WA
Posts: 83
crazydave is on a distinguished road
Default Head Gasket Leak

So, I was under the car on the weekend changing out the clutch. While I had it apart the view of the motor was better then usual -



I have previously noticed oil around the LH cylinder see photo. I probably cleaned this area 20k km ago

So the question is: is this bad and will need repair soon or its ok and should be right for ages just keep an eye on it?
Attached Images
File Type: jpg Selection_009.jpg (80.5 KB, 45 views)
__________________
2007 Forester X MT
Reply With Quote
  #2  
Unread 18th May 2014, 06:46 AM
Kevin's Avatar
Kevin Kevin is offline
Administrator
 
Join Date: Jul 2008
Location: Sydney, Oz
Year: MY'03
Model: Forester
Transmission: A/T
Posts: 4,513
Kevin is on a distinguished road
Default

Clean it up and then see if it is a "seep", if so just keep an eye on it.
__________________
MY'03 Foz AT XS with centre lock-up
MY'10 Triton AT GLX-R 2.5 DiD
www.subaruclub.com.au
Reply With Quote
  #3  
Unread 18th May 2014, 07:46 AM
Andrewsubaru's Avatar
Andrewsubaru Andrewsubaru is offline
Forum Member
 
Join Date: Feb 2014
Location: Mid North Coast NSW Australia
Year: 2003
Model: Forester
Transmission: Manual 5 speed
Posts: 60
Andrewsubaru is on a distinguished road
Default

Hey crazydave
My head gasket has a slight leak just like yours, it's been like that for 35,000km that I've owned it. Its probably been leaking longer before I had it. It never gets any worse! I would not be to worried about it unless it starts to really make a mess.
Reply With Quote
  #4  
Unread 18th May 2014, 09:30 AM
taza's Avatar
taza taza is offline
Forum Member
 
Join Date: Oct 2010
Location: Perth, Western Australia
Posts: 3,837
taza is on a distinguished road
Default

As Kevin said, clean it and keep an eye on it. I just changed the HG on a 2.5 last week as one side was leaking oil. $200 for a set of head gaskets from veales
__________________
Current vehicle - 84 MY Wagon EJ22 4 Speed
Reply With Quote
  #5  
Unread 18th May 2014, 09:00 PM
crazydave crazydave is offline
Forum Member
 
Join Date: Mar 2012
Location: Perth WA
Posts: 83
crazydave is on a distinguished road
Default

Folks,

Thanks for the feedback can you expand on "really make a mess" and "seep" can I assume that that means does not drip?

Taza, how long did it take to change the head gasket - did you do both sides and did you have the heads surfaced?

Thanks.
__________________
2007 Forester X MT
Reply With Quote
  #6  
Unread 18th May 2014, 09:20 PM
Ratbag's Avatar
Ratbag Ratbag is offline
Administrator
 
Join Date: Jan 2012
Location: Bayside, Melbourne, Vic
Year: MY06, MY10
Model: Forester SG & SH
Transmission: 5MT/DR & 4EAT Sports
Posts: 6,225
Ratbag is on a distinguished road
Default

Gidday Dave

Is your car using any oil? If so, how much?
Our Camry was leaking oil (dripping on the driveway), but the amount was so little as to be insignificant between oil changes (at 10,000 Km or 12 month intervals).

Basic rule with alloy heads and blocks is to check that they are flat using a workshop straight edge across in all directions. It is far easier to machine either or both surfaces while the engine is stripped down than it is to do it after re-assembly ... .

Also follow the OEM tightening torque, sequence and procedure for all components to the letter, including cam carriers and the like. It is usual to tighten all head nuts/bolts to finger tight in sequence before commencing using a torque wrench on them. This settles the head/gasket/block alignment and mating before applying any real force to the hold-down bolts/nuts. Finger tight is about 1 to 2 ft. lbs. torque. Same goes for the cam carrier nuts/bolts.

I have always tensioned heads in steps, following the sequence for each step.

Say the recommended torque is 60 ft. lbs., I would start with finger tight, then set the torque wrench to 5 ft. lbs.; then 15; then 30; then 45; then 60 ft.lbs.

This takes a bit longer, but after having an engine that would leak at the head gasket at the drop of a feather, one realises that the forces being applied need to be applied gradually and very evenly. BTW, that particular engine had a cast iron head and block (it was a straight six). Alloy heads and blocks are even more 'flexible'. After working this procedure out, none of the head gaskets I worked on ever leaked again ... .

Remember to re-set the tappet clearances afterwards ... .
Reply With Quote
  #7  
Unread 18th May 2014, 10:16 PM
crazydave crazydave is offline
Forum Member
 
Join Date: Mar 2012
Location: Perth WA
Posts: 83
crazydave is on a distinguished road
Default

Ratbag,

Thanks for the comments - I agree with you resurfacing a head while it is off and then torqueing in steps - although my experience is: if you machine the head and follow the procedure in the manual it generally works out ok.

Regarding oil consumption - I use 1l or maybe a little more every 10,000km I top up at about 5000km. I think I could get away without checking but for $2 of oil and 5minutes of my life it is worth it vs the consequences of running out of oil.

There are no known oil leaks on this car apart from the head as mentioned when I had the flywheel off this weekend there was an accumulation of gunk near the main seal but I wouldn’t even call that a seep. And I had sprayed Teflon into the bell housing to shut up the noisy throw-out bearing so who knows where the oil came from originally.
__________________
2007 Forester X MT
Reply With Quote
  #8  
Unread 18th May 2014, 10:32 PM
Ratbag's Avatar
Ratbag Ratbag is offline
Administrator
 
Join Date: Jan 2012
Location: Bayside, Melbourne, Vic
Year: MY06, MY10
Model: Forester SG & SH
Transmission: 5MT/DR & 4EAT Sports
Posts: 6,225
Ratbag is on a distinguished road
Default

G'day again Dave

Doesn't sound like it's exactly gulping the oil down like an alcoholic at a free booze up, mate ... .

On that basis, I would go along with everyone else's view of just checking your oil regularly.

If you have the plugs out, do a compression test to make sure that your engine isn't down on any cylinder/s (or up - just as bad, these days).

Also check that you aren't getting any oily residue or emulsification in your coolant.

Otherwise, just keep an eye on it, and your oil levels! I totally agree that the occasional slurp of oil is a lot cheaper than an engine re-build ... .
Reply With Quote
  #9  
Unread 18th May 2014, 11:23 PM
Kevin's Avatar
Kevin Kevin is offline
Administrator
 
Join Date: Jul 2008
Location: Sydney, Oz
Year: MY'03
Model: Forester
Transmission: A/T
Posts: 4,513
Kevin is on a distinguished road
Default

Quote:
Originally Posted by crazydave View Post
"seep" can I assume that that means does not drip?
Yep, generally speaking.
__________________
MY'03 Foz AT XS with centre lock-up
MY'10 Triton AT GLX-R 2.5 DiD
www.subaruclub.com.au
Reply With Quote
  #10  
Unread 21st May 2014, 07:28 AM
PauSum's Avatar
PauSum PauSum is offline
Forum Member
 
Join Date: Jul 2008
Location: Perth Australia
Year: 2005 and 2014
Model: Forester and Outback
Transmission: 5 speed manual and 7 speed CVT
Posts: 228
PauSum is on a distinguished road
Default

Hi everyone,

My MY06 has the same problem, probably to both sides of the engine.

I have been "keeping my eyes" on the oil level etc and one worse case was I had to put in 1.5L (didn't aware of this problem before) but since my monitoring its normally 200ml max (about 3 months ago).

I have been checking the oil level every week (max 2 weeks) as well as the presence of "milky" coolant and everything seems fine so far (and interesting no oil consumption at all for at least 2 months).

My only concern is will this get worse all out of sudden and make some irreparable damage to the engine?

Cheers
PauSum
Reply With Quote
Reply

Tags
head gasket, oil leak

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


All times are GMT -3. The time now is 09:40 AM.


Powered by vBulletin®
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.