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Old 07-31-2010, 04:41 PM   #1
pseudodigm
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Default Coolant Leak Found - not sure what part is called

Hi all. This solves a bit of a mystery...last time I had my oil changed they told me that my radiator cap was leaking and replaced it. I'd *thought* something was off because I'd smell coolant once in a while but the temp never budged from where it always is.

So today I changed my spark plugs (first time, btw and I owe it completely to Nasioc. Thank you very very much) and after coming home from a spirited run in to test 'em out (yeehaa, nice difference) I smelled coolant. Sure enough I open up the hood and the...well I don't know what it's called, which is why I'm posting. I need to know it's name so I can figure out how expensive it is, how hard it is to replace, or if it'll fix.

In the picture (which isn't my engine, btw) I have coolant in a little pool on that highlighted thing. I don't think it's the cap because I can see teeny bubbles coming from where the lip (the short "tube" that the cap screws on to) meets the..tank thing. I'm such a noob.



Any insight on this is really really appreciated.

Thanks

Rick
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Old 07-31-2010, 05:24 PM   #2
quazimoto
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Its the turbo coolant resovior. You could probably get away with J B weld it if you clean the leaking area real good.
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Old 07-31-2010, 05:32 PM   #3
fastnoypi
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the gasket is probably squashed. Pull the top off, clean up the gasket and bond with high temp silicone. Or you can upgrade to the new plastic style reservoir relatively cheap in the classifieds
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Old 07-31-2010, 05:48 PM   #4
pseudodigm
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I'll clean up the cap but I'm pretty sure I'm seeing micro bubbles at the weld there. It's easy to get to so I'll clean it and JB weld until I can perhaps replace it. Think it's a hard job?

Thanks for the ID btw!
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Old 07-31-2010, 07:19 PM   #5
spinningcain
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Clean it real good and sand the area with some heavy grit paper before you put the jb weld on. And it will most likely hold for awhile
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Old 07-31-2010, 08:03 PM   #6
pseudodigm
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Ok, I cleaned an sanded it the best I could and JB Welded it, so we'll see.

In the mean time I'll keep a look out for a new/used replacement. A plastic one would be great though, any one have a link or part number? I'm trying to search but I keep running in to people having problems with the paint on theirs.
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Old 09-08-2010, 12:37 PM   #7
TBone7281
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I have the exact same issue with my 04, and it's definitely not from the cap. I was hoping maybe it was a known issue that maybe had a recall from Subaru, but it doesn't look like it based on my quick search of NASIOC. Did the JB weld do the trick? I'll take a picture when I go down to the garage in a second. I'm about to change the timing belt so I'll be under the hood anyway.
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Old 09-08-2010, 03:14 PM   #8
wrxracer519
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Put a WTB ad here on nasioc and get a new tank from an 06+ wrs or sti. Mine leaked, replaced the tank and no issues since. Should be able to get one for $30 or something.
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Old 09-08-2010, 05:39 PM   #9
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Quote:
Originally Posted by TBone7281 View Post
I have the exact same issue with my 04, and it's definitely not from the cap. I was hoping maybe it was a known issue that maybe had a recall from Subaru, but it doesn't look like it based on my quick search of NASIOC. Did the JB weld do the trick? I'll take a picture when I go down to the garage in a second. I'm about to change the timing belt so I'll be under the hood anyway.
My 04' constantly has a sweet smell of coolent after a long drive. I have to add a little coolent every oil change but there is never any coolent in the oil or vice-versa.

Maybe this is an issue?
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Old 09-08-2010, 06:20 PM   #10
TBone7281
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Quote:
Originally Posted by wrxracer519 View Post
Put a WTB ad here on nasioc and get a new tank from an 06+ wrs or sti. Mine leaked, replaced the tank and no issues since. Should be able to get one for $30 or something.
Why do 06+ replace their tanks?


Quote:
Originally Posted by skingfreak View Post
My 04' constantly has a sweet smell of coolent after a long drive. I have to add a little coolent every oil change but there is never any coolent in the oil or vice-versa.

Maybe this is an issue?
Could be, check the top of your tank. Mine leaks, then evaporates from the heat and leaves a funk...

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Old 09-08-2010, 06:42 PM   #11
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Quote:
Originally Posted by fastnoypi View Post
the gasket is probably squashed. Pull the top off, clean up the gasket and bond with high temp silicone. Or you can upgrade to the new plastic style reservoir relatively cheap in the classifieds
the plastic one isnt a upgrade, many change back to the metal one as it doesnt crack as often as the plastic.
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Old 09-08-2010, 06:42 PM   #12
El Guapo
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maybe a propane torch, flux and solder can fix that?
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Old 09-08-2010, 06:46 PM   #13
El Guapo
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Quote:
Originally Posted by scby rex View Post
the plastic one isnt a upgrade, many change back to the metal one as it doesnt crack as often as the plastic.
Shame on subaru for not doing their homework. It's 2010 and they haven't gone back to metal tanks
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Old 09-09-2010, 02:33 AM   #14
Buffman
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I had some coolant puddling on my block, and it appear to be from a small rip some goof ball put in the hose that connects to the metal hard line that goes under the intake. I double worm clamped it for now (had a spring clamp on it) to see if it returns. Probably the same person who ripped the hell out of my inlet tube!
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Old 09-09-2010, 11:15 PM   #15
scby rex
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Quote:
Originally Posted by El Guapo View Post
Shame on subaru for not doing their homework. It's 2010 and they haven't gone back to metal tanks
its called cheaper production cost bucko, 3 part system for a one part system that cost less to produce. Dont be a asshat.
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Old 09-09-2010, 11:50 PM   #16
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Quote:
Originally Posted by scby rex View Post
its called cheaper production cost bucko, 3 part system for a one part system that cost less to produce. Dont be a asshat.
you said it right there bucko, its a one part system which has less parts to fail. To get hightemp plastic molds for the tanks is probably more expensive to make than stamping the steel parts but in the long run less warranty claims to shell out to the dealerships and parts to stock in the inventory bins.
Don't be a asshat
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Old 09-09-2010, 11:55 PM   #17
scoobystas
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technically its "don't be an asshat"...just being an asshat
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Old 09-10-2010, 08:10 PM   #18
scby rex
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Quote:
Originally Posted by El Guapo View Post
you said it right there bucko, its a one part system which has less parts to fail. To get hightemp plastic molds for the tanks is probably more expensive to make than stamping the steel parts but in the long run less warranty claims to shell out to the dealerships and parts to stock in the inventory bins.
Don't be a asshat
less parts to fail as theres only one and it does fail more than the cast aluminium ones that have a gasket and steel top. Atleast the older ones can be fixed.
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Old 09-11-2010, 12:57 AM   #19
barnburner
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jb weld should only be considered a temporary solution!

I had the EXACT same problem, it corroded all around the joint where the neck meets the tank.
don't even try to fix it, just find a new one.
I picked a mint stock metal reservoir on here for $25 shipped...look around you'll find one.

when I replaced it, just as a test, i bent the neck on the old one and little and sure enough the whole thing snapped right off...there's a lot of pressure built up in that little tank and you don't want that happening during a "spirited drive"!!

good luck with it.

ps- it took me like ten minutes to replace -- only two or three bolts and some hoses
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