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Old 10-16-2012, 11:35 PM   #1
UboatCmdr
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Default Tommy Kaira shot oil out the dipstick?!

Went for a little cruise with some friends out into the mountains over the weekend for a little bit of spirited driving...
At WOT up a hill Had oil come spraying out of the hood vents. We immediately pulled over to find the dip stick popped up and oil everywhere in my engine bay, so im guessing thats where it came from.

Still had normal oil pressure while pulling off the road, sounded like it was running fine ect.
Got the vehicle towed home as the oil was down 2 Liters and waiting for a free tow from AMA is way better than destroying a motor

Now comes the fun part, figuring out what the hell caused it to shoot out oil.
I topped up the oil to pull it into the garage and it was having some issues idling, Boost gauge showing ~20 in/HG(instead of the usual 40)

Turbo inlet elbow is full of oil, as is the intercooler and throttlebody. However the turbo is bone dry?.... Weird.... And yes i know some oil in the intercooler is normal however i cleaned it out while doing head gaskets a month ago.

The PCV valve on the manifold as far as i can tell is still good, the valve moves freely(I assume these arent supposed to be spring loaded?)


Waiting on my friend to get back into town tomorrow so i can borrow his compression tester to make sure the rings arent done or that a piston got cracked.

I need to check none of the PCV lines are clogged, but anything else i should be checking?

Its a 1996 JDM GF8 Tommy Kaira. Ej20g Open deck, has about 2000Km since i did the headgaskets and all top end seals, all intake/exhaust gaskets, Oil pump seal, thermostat, timing belt and idlers ect.


Thanks in advance to anyone who can lead me in the right direction, Im new to working on subies. Its always been Jeeps and yotas for me
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Old 10-17-2012, 12:00 AM   #2
eg33GC
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It's probably a cracked piston, it is common overseas.
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Old 10-17-2012, 12:41 AM   #3
UboatCmdr
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Quote:
Originally Posted by eg33GC View Post
It's probably a cracked piston, it is common overseas.
Really? I didnt think ej20's were prone to cracked pistons except under high boost? Im only running stock psi
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Old 10-17-2012, 01:18 AM   #4
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Yeah it sounds like something is causing excess pressure in the crank case. I would suspect pistons or rings and compression is leaking into the case, causing the dipstick to blow out. I think the loss of engine vacuum supports this as well. Let us know what you figure out with the compression check, hopefully it is something minor though.

Thanks,
Rick
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Old 10-17-2012, 01:36 AM   #5
UboatCmdr
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Just realized the hard plastic line going to the driver side valve cover vent is broken completely off, could this have anything do with it? Also the dipstick oring was completely flat and not making contact with the tube?
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Old 10-17-2012, 10:23 AM   #6
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Quote:
Originally Posted by UboatCmdr View Post
Just realized the hard plastic line going to the driver side valve cover vent is broken completely off, could this have anything do with it? Also the dipstick oring was completely flat and not making contact with the tube?
So basically you had no crankcase vacuum on one side resulting in a massive vacuum leak?
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Old 10-17-2012, 10:56 AM   #7
Aphex28
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Sounds like rings or the like to me
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Old 10-17-2012, 12:55 PM   #8
eg33GC
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Quote:
Originally Posted by UboatCmdr View Post
Really? I didnt think ej20's were prone to cracked pistons except under high boost? Im only running stock psi
we tend to ruin bearings over here quicker than we ever get the chance to ruin a piston

even if your valve cover vac line was ruined, there is still a ton of crankcase pressure caused by a ruined top ring/missing ringland/chunk out of piston
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Old 10-17-2012, 05:50 PM   #9
UboatCmdr
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0 PSI on what i believe is piston #4(Jdm passenger side, closest to the firewall)


I guess we all know what that means
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Old 01-17-2013, 01:27 AM   #10
UboatCmdr
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Old 01-21-2013, 09:48 AM   #11
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links to facebook don't work.
Quote:
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The page you requested cannot be displayed right now. It may be temporarily unavailable, the link you clicked on may have expired, or you may not have permission to view this page.
Return home
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Old 01-21-2013, 05:21 PM   #12
slaytalera
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I got the same thing
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Old 01-21-2013, 11:56 PM   #13
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Old 01-22-2013, 02:35 PM   #14
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hah! A bit more than a ring!
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Old 01-22-2013, 04:57 PM   #15
UboatCmdr
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Hahaha yeah I dont know how it was idling like this...

Thanks for fixing the picture Mr. Nipple.
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