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Old 05-04-2013, 12:43 PM   #26
BugeyedBandit
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Quote:
Originally Posted by DZXN View Post
Do you know the leak is coming from above the cooler? Is it the same mechanic who does your oil changes? Probably your gorilla mechanic over tightening your oil filter.
Yep, we hosed the bottom of the motor down, then started the car and put it back on the lift. After about 3 minutes, a single bead of oil dripped out from where the oil cooler meets the block. So we assumed I had another torn oil cooler gasket, but when we took it apart the gasket looked pristine.

Finally, we reinstalled everything and he Hulked the 24mm bolt on there, but put the oil filter on about a half turn past hand tight if I remember correctly. It idled on the lift for 10 minutes without a single leak after that, then of course when I drove in the rain later that day, I noticed a nice rainbow colored trail behind my car. At this point, the oil cooler itself is the only thing left to change
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Old 05-04-2013, 05:16 PM   #27
Cruatchi
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I think my question is best put here:

I'm a newb to Subaru's so bear with me.

When i got my new to me 05 STI inspected. Mechanic said the "oil filter cooler" is leaking and it's most likely a gasket that is easily done at the same time as the timing belt service. So my question is what part number do i give the stealership when I go to order it or perhaps what's the proper name for it so that the parts guy will know what i'm talking about. And I got another question since I'm on the topic of the timing belt service. What else should i replace while I have everything opened? Right now I'm thinking 3 belts, water pump, thermostat (cuz i heard it's in the water pump so it's a good time to change it), and whatever is needed for the leaking "oil filter cooler". Is there anything else?
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Old 05-04-2013, 05:20 PM   #28
fastnoypi
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Quote:
Originally Posted by Cruatchi View Post
I think my question is best put here:

I'm a newb to Subaru's so bear with me.

When i got my new to me 05 STI inspected. Mechanic said the "oil filter cooler" is leaking and it's most likely a gasket that is easily done at the same time as the timing belt service. So my question is what part number do i give the stealership when I go to order it or perhaps what's the proper name for it so that the parts guy will know what i'm talking about. And I got another question since I'm on the topic of the timing belt service. What else should i replace while I have everything opened? Right now I'm thinking 3 belts, water pump, thermostat (cuz i heard it's in the water pump so it's a good time to change it), and whatever is needed for the leaking "oil filter cooler". Is there anything else?
21370KA001 for the cooler gasket. As far as the timing belt service, have them replace the pulleys as well.
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Old 05-04-2013, 05:41 PM   #29
Cruatchi
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Originally Posted by fastnoypi View Post
21370KA001 for the cooler gasket. As far as the timing belt service, have them replace the pulleys as well.
thank you! which pulleys?
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Old 05-11-2013, 07:11 AM   #30
fastnoypi
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Originally Posted by Cruatchi View Post
thank you! which pulleys?
All the timing idler pulleys when doing the timing belt job. Some people think its the obvious, some think only the belt need replacing. Its cheap enough to get all your timing components in a kit.
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Old 05-13-2013, 04:35 PM   #31
Cruatchi
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Quote:
Originally Posted by fastnoypi View Post
All the timing idler pulleys when doing the timing belt job. Some people think its the obvious, some think only the belt need replacing. Its cheap enough to get all your timing components in a kit.
I would have love to be able to buy the kit, but I already have the belts, water pump, tensioner, thermostat. From the kits I only see "4 idler pulleys". Would it possible to get the names of them? Maybe even the links from rallysportdirect? I might be needing to buy a new rad too, so maybe I'll get pulleys from them at the same time
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Old 05-20-2013, 06:23 PM   #32
Cruatchi
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I figured out which pulleys.

How much oil will I be losing when I change out the oil cooler gasket and oil pump gaskets? Will i lose everything as if I were doing an oil change? Will i only be losing a little and will just need to top off the oil again?
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Old 05-21-2013, 09:29 AM   #33
Daddy_Digital
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Quote:
Originally Posted by Cruatchi View Post
I figured out which pulleys.

How much oil will I be losing when I change out the oil cooler gasket and oil pump gaskets? Will i lose everything as if I were doing an oil change? Will i only be losing a little and will just need to top off the oil again?
You should do this when its time to change the oil. You will loose it all because you have to remove the oil filter. So its would be recommended to do it at your next oil change. Also, take your time because if that gasket gets snagged, it will split and you have to start all over. It happened to me and I wasnt a happy camper. Good luck.
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Old 05-22-2013, 02:33 AM   #34
Cruatchi
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Quote:
Originally Posted by Daddy_Digital View Post
You should do this when its time to change the oil. You will loose it all because you have to remove the oil filter. So its would be recommended to do it at your next oil change. Also, take your time because if that gasket gets snagged, it will split and you have to start all over. It happened to me and I wasnt a happy camper. Good luck.
thanks, I'll just do a full change, since i'm already working on it. The previous owner said i can go another few thousand km's before it needs to be done, but since i'm losing all of it when i remove the filter, i'll just do it properly. Was kinda hoping i'd only lose a little, so that I can top it off then drive it another few thousand until doing a proper oil change. thanks again for all your help guys. I'm sure i'll be back here soon asking another newb question.
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Old 05-22-2013, 04:26 PM   #35
Daddy_Digital
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^^ your welcome
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Old 02-10-2014, 06:09 PM   #36
johnnieski
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Default one more success (oil cooler gasket replacement)

This thread helped alot, and fixing oil leaks is gratifying, esp when its a quick fix for a common problem. Thanks everyone. I would add:

1) You should NOT have to empty any coolant. There should be enough flex in the two coolant hoses to tilt the cooler and expose the gasket. There is a tiny mounting bolt on the hard coolant line (front side of the oil cooler) that if removed will give you much appreciate slack.
2) Remove the long header pipe that crosses the oil cooler/filter region for nearly unlimited room to work.
3) dental pick to pull out old gasket.
4) Deep 24 mm sockets are hard to find, but much needed. Gasket also needed to be ordered. Plan ahead.
5) Adds 45 minutes of work to an oil change. The 10 minute estimate may be for a different car (Mine was on 176K 2003 WRX), or when done by the few magician techs out there.
6) Home mechanic: Take a 20 minute break after taking the filter and cooler mounting shaft out to let all/most of the oil drip out. Nothing more annoying and messy than working under a constant oil drip.
7) Anyone can do this, so go for it!!!
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Old 02-14-2015, 11:54 AM   #37
brutus76
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I thought that I would add to this thread, as I just finished a complete removal of the oil cooler, the two adapter plates and the seals.

Just going in and changing the main seal above the oil cooler wasn't enough.

I tried again and went deeper, replacing the large thin o-ring above the adapter plate and the smaller thin o-ring around the neck of the adapter plate.

I got it all together and realized that I had bolted into a steel plate. Our engines are aluminum.
Yet another adapter plate to remove revealing the final oil seal.

I purchased pinch pliers that are a great help, as there is minimal coolant loss. Just pinch off the two coolant lines supplying the cooler. I chose to pinch the rear hose off at the block and the front hose off at the water pump.

I have included pictures and a parts list from Subaru.

Hope these pictures help.







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Old 06-02-2015, 01:55 PM   #38
subywrx
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For 2.0L WRX, we only need the oring part# 21370KA001 (diagram# 21370).
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