11 wrx well here we go #4 at 80% leak down - Subaru WRX Forum
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post #1 of 5 Old 12-02-2014, 08:26 PM Thread Starter
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11 wrx well here we go #4 at 80% leak down

#1 is at 145psi #2-145psi #3-150psi #4 75psi
and 80% fail on #4
I'm going to see if subaru can tell me where I'm loosing so much pressure from piston-intake-exhaust-or head gasket. what is the most common failure on these motors, is it usually just the ring lands and scorn short block ? i dint expect to spend this kind of money but if I'm going to id like to make sure this never happens agin. iv only had the car for 2 months kinda heart broken...and uninformed, i did not expect any motor work any time soon. soooo I'm in the learning process right now.
is there a common weak point with these motors ? i know the ring lands and bearings like to go.
but 80% leak down sounds crazy to me with every other piston holding steady pressure.
feel so dumb for buying a wrx in this condition
pay to play i guess
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post #2 of 5 Old 12-03-2014, 07:04 AM
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If you got a busted ringland you will have bad leak down, the ring land that breaks is in between the compression rings usually.

and yes the 08+ had bad problems with it.
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post #3 of 5 Old 12-03-2014, 03:56 PM Thread Starter
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is it common to have to replace the short block when the ringlands go ?
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post #4 of 5 Old 12-04-2014, 07:44 AM
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yes, depending on how much metal has made its way into the engine. I replaced the two broken pistons and rings in my 13 wrx and spun a rod bearing 1000miles later. My suggestion would be to do the whole short block to start with to save labor and time.
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post #5 of 5 Old 12-04-2014, 05:42 PM Thread Starter
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I saw that in another post, woke up and it was spun terrible man.

Subaru said they would tear it down for free and see if there going to warranty anything. figured if they tear it down and deny me il just order a built block and just drop it in there.
looking at the rallyspec and topspeeds ss1 block.
i plan on doing the work myself.
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