Relaced Head Gaskets on 1997 Subaru Legacy Outback and leaking oil. - Subaru Outback - Subaru Outback Forums

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Old 03-25-2012, 03:54 PM   #1 (permalink)
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Default Relaced Head Gaskets on 1997 Subaru Legacy Outback and leaking oil.

Hi

I am at wits end with this car. I replaced the head Gaskets in this 2.5l NON TURBO. We pulled the heads sure enough the factory Gaskets were leaking. So we bring the heads to the machine shop have them resurfaced. Purchase Subaru Head Gasket replacements. Put the heads back on with new Head Bolts torque the heads per the specs. Ge the motor back in and reassemble everything. Start the engine. The oil came pouring / spraying out of the head seam on the passengers side head. roughly 4 qts in a matter of a minute. Any ideas ?
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Old 03-25-2012, 09:54 PM   #2 (permalink)
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If oil is pouring or spraying out, there should be a noticeable physical problem, like a visible gap by the gasket. What makes me wonder is the claim that it's "spraying." The two wide gaps at the bottom of the block simply allow oil to drain from the head into the oil pan, so it might drip or run out, but it wouldn't spray. The only place where oil would be under pressure is at the oil feed from the block, which on the passenger side is at the top corner toward the firewall.

Here's a photo of the passenger side of the block with the head gasket in place:



I use Permatex copper spray, so that's why it's not the usual dull gray. The oil feed is the round hole inside the oval opening in the gasket near 11:00. It's possible you put the gasket on backwards, and there is nothing keeping oil inside the engine. Look behind the power steering pump, and if that tall section of the gasket is toward the front of the car, I'm sorry to say but you'll have to do that side over again.

Alternate theory: Maybe the new head bolts were a bit too long, and/or the resurfacing took off too much material, so the bolts bottomed out without really clamping the head down.
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Old 03-25-2012, 10:03 PM   #3 (permalink)
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Quote:
It's possible you put the gasket on backwards ...
It's easy to do this ... could be what happened.
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Old 03-26-2012, 06:07 PM   #4 (permalink)
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Quote:
Originally Posted by RobLog View Post
It's easy to do this ... could be what happened.
It's unfortunately true. I and it toruqed to the first 22 ft lbs before I realize it was in backwards. I swore I double checked too. Its the one port on the top that is a good clue on which way it's supposed to go in. I guess I have to learn the hard way sometimes!

I am just happy I noticed before I got any further.
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