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 Post subject: intercooler questions
PostPosted: Wed Jun 21, 2017 4:26 am 
In Neutral
Joined: Fri Oct 30, 2015 6:19 pm
Posts: 5
I have a 90 legacy with the ej20g from japan.

Question 1:
I got the car running but it has an intercooler light on. is this because the intercooler is low on fluid? what would cause the light to be on?

Question 2:
Ive never owned a turbo car before, i got 50/50 premixed coolant from subaru, how full is the intercooler supposed to be? do i fill it until it comes out the cap? I attached a picture of what the intercooler looks like.

Thanks,
90GT.

Image


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 Post subject: Re: intercooler questions
PostPosted: Wed Jun 21, 2017 3:41 pm 
First Gear
Joined: Fri Jan 16, 2004 12:04 am
Posts: 76
Location: Bell-something, WA
Do NOT put antifreeze in the intercooler. It should take DISTILLED water ONLY.

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 Post subject: Re: intercooler questions
PostPosted: Thu Jun 22, 2017 1:50 am 
In Neutral
Joined: Fri Oct 30, 2015 6:19 pm
Posts: 5
Thank you for the advice, luckily i never poured any in yet. went and bought some distilled water instead. do i just fill it up to the cap?


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 Post subject: Re: intercooler questions
PostPosted: Fri Jun 23, 2017 2:22 am 
Third Gear
Joined: Sat Dec 16, 2006 4:41 am
Posts: 724
Location: Parkville, Mo.
What is the reason for no antifreeze? What do you do in the winter?

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 Post subject: Re: intercooler questions
PostPosted: Fri Jun 23, 2017 6:05 pm 
First Gear
Joined: Fri Jan 16, 2004 12:04 am
Posts: 76
Location: Bell-something, WA
Not sure what the winter procedures are, I don't have a AWIC, or any of the service documentation. I would want to review what Subaru says to do before just dumping whatever into the system. If the OP lives in North America, its summer, so he should be OK for a few months at least.

Find out what Subaru recommends.

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1984 GL-10 Turbo-Traction Wagon
1996 SVX LSi
2002 WRX sedan


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 Post subject: Re: intercooler questions
PostPosted: Mon Jun 26, 2017 5:26 pm 
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Joined: Tue Oct 15, 2002 11:37 am
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Location: Houston, Tx
You can put antifreeze in the intercooler. You want some antifreeze in there so you have some freeze protection and if that's not the reason you want some in there to prevent microbial growth.

I run about a 30% antifreeze mix with distilled water.

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surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


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 Post subject: Re: intercooler questions
PostPosted: Sat Jul 01, 2017 11:01 pm 
Fourth Gear
Joined: Sun Jun 10, 2007 4:35 am
Posts: 1732
Location: All over the place
Yeah I never heard of the no antifreeze thing. I'd really like to know if there's anything behind that. I have the AWIC with about 25% mixture.

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93 Touring Wagon (EJ20G 5spd Swap) -- In storage while I work (and never get to play) in JDM-land.
00 Forester S/tb (predecesor to the XT) -- My JDM fling, dont tell my Touring Wagon!


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 Post subject: Re: intercooler questions
PostPosted: Mon Jul 03, 2017 3:51 pm 
First Gear
Joined: Fri Jan 16, 2004 12:04 am
Posts: 76
Location: Bell-something, WA
James614 wrote:
Yeah I never heard of the no antifreeze thing. I'd really like to know if there's anything behind that. I have the AWIC with about 25% mixture.


That came from my knowledge of the STI IC water sprayer system. Distilled water only, required to drain if operating in freezing temperatures.

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1984 GL-10 Turbo-Traction Wagon
1996 SVX LSi
2002 WRX sedan


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 Post subject: Re: intercooler questions
PostPosted: Tue Jul 04, 2017 2:20 am 
Fourth Gear
Joined: Sun Jun 10, 2007 4:35 am
Posts: 1732
Location: All over the place
carfreak85 wrote:
That came from my knowledge of the STI IC water sprayer system. Distilled water only, required to drain if operating in freezing temperatures.

Its definitely not comparable to an IC spray system. RS Liberty Club has the 92 service manual uploaded, but it curiously doesn't list the specific fluid. It generically refers to it as coolant. http://www.rslibertyclub.org/forums/sho ... l-Complete (maybe someone else can find it).

The users there seem to generally recommend 25-33% antifreeze mix or, distilled water with an agent like Redline Water Wetter or similar for corrosion protection. I'd trust them as they got the AWIC-equipped cars domestically.

_________________
93 Touring Wagon (EJ20G 5spd Swap) -- In storage while I work (and never get to play) in JDM-land.
00 Forester S/tb (predecesor to the XT) -- My JDM fling, dont tell my Touring Wagon!


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 Post subject: Re: intercooler questions
PostPosted: Thu Jul 20, 2017 1:27 pm 
First Gear
Joined: Sun Dec 08, 2013 7:57 pm
Posts: 121
Location: Northern New Jersey
Ever get the light sorted? I am curious haha.
Also very jealous of the car (I need that front bumper :lol: )

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