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Old 09-14-2021, 11:11 PM   #1
BrZ_Good
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Spark plug tube fail

125k 2013 brz. Spark plug gasket on cylinder 4 is leaking on plug and coil pack, shorting the connection causing spark plug tip to explode.
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Old 09-15-2021, 12:26 AM   #2
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Now THAT is ugly -

Bubba suggests you put a new spark plug in there.

Then check the other plugs to see if they are tight.

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Old 09-15-2021, 02:26 AM   #3
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Ummm. Hopefully all the pieces escaped and there is no engine damage. You MAY be able to replace the valve cover gasket and spark plug tube gasket without pulling the engine but it will be a PITA.
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Old 09-15-2021, 05:54 AM   #4
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Ummm. Hopefully all the pieces escaped and there is no engine damage. You MAY be able to replace the valve cover gasket and spark plug tube gasket without pulling the engine but it will be a PITA.
Maybe jacking up that side of the engine by pulling the bolt on the mount would help.
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Old 09-15-2021, 08:43 AM   #5
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My gasket failed when I lost a rocker arm. When I pulled the plug to initially diagnose the "misfire" the tube was full of oil. Didn't understand why until I pulled the valve cover. BTW: My rebuilt engine is in the car and I get my cleaned injectors back on Friday. I might actually have a running car over the weekend.
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Old 09-15-2021, 11:22 AM   #6
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Maybe jacking up that side of the engine by pulling the bolt on the mount would help.
I would undo both motor mounts, lift the engine up by the oil pan till the motor mounts clear the cross member, and push it over to one side(make sure you don't knock the engine off the jack). Alternately you could also remove the motor mounts off the block so you could mess with the height to get the most space, but I am pretty sure lifting up will get you the most. That is how I did my brothers Forester. The issue with the FA is they use a bit of sealant on the valve cover gasket. So you would have to scrape that off, clean up, and reapply in that little space trying not to get any of the old stuff into the head. It's a PITA. 6 beer job, 4 while working, 2 for after while you are putting your tools away. If you have the equipment, it takes about the same amount of time to just pull the motor, fix, reinstall.
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Old 09-15-2021, 11:45 AM   #7
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Preciate the input fellas. Iíll make sure Iíll have the beer money before starting this one. Probably gonna unbolt motor, tilt and rock it. Do these valve covers have a gasket? Or am I gonna have to bob ross some sealant? Iíll change the set of tube gaskets. Needs new plugs anyway, changed once at 75k.

Only other knuckle buster was tob at 86k.
Threatened to break up with her, but, I canítÖ
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Old 09-15-2021, 11:47 AM   #8
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My gasket failed when I lost a rocker arm. When I pulled the plug to initially diagnose the "misfire" the tube was full of oil. Didn't understand why until I pulled the valve cover. BTW: My rebuilt engine is in the car and I get my cleaned injectors back on Friday. I might actually have a running car over the weekend.
Oof. Congrats tho dawg
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Old 09-15-2021, 11:51 AM   #9
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Preciate the input fellas. Iíll make sure Iíll have the beer money before starting this one. Probably gonna unbolt motor, tilt and rock it. Do these valve covers have a gasket? Or am I gonna have to bob ross some sealant? Iíll change the set of tube gaskets. Needs new plugs anyway, changed once at 75k.

Only other knuckle buster was tob at 86k.
Threatened to break up with her, but, I canítÖ

There is a gasket for the perimeter, and for the spark plug tube, but it uses sealant too in a couple spots.
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