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Using Coolant
Hi guys,
I noticed that my engine is using coolant from the level of the overflow bottle. When I check the reservoir it is full, even a bit past the line where the cap seals. This is when engine is completely cold. When it is hot, coolant level is up to the max in the overflow bottle. There is no oil in the coolant in the reservoir, and I just replaced the coolant (subaru genuine), the two radiator hoses and a thermostat (for a cooler one - grimmspeed 160degree one). There is no coolant in the oil (replaced the oil and the oil filter last weekend). Doug did the CO test and there didnt appear to be any in the coolant. I cannot find a leak or any traces of coolant anywhere, though I sometimes can smell it after I turn the engine off, and the car doesn't blow smoke. Does anyone know what it could be? Next on the cards is a compression test. Where can I get a relatively cheap compression test kit? Engine is stock and done 150000kms Thanks for reading. Adi |
#2
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Stock radiator or alloy?
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#3
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Stock radiator.
Adi |
#4
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Hmmm there goes that idea then...
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#5
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Quote:
If you are filling it to the top, the coolant expands when it is heated up and will be spilling out of the overflow cap. Don't fill it any further than the max line and it shouldn't flow out. |
#6
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Ur tanks can seep a bit when there on the way out giving that coolant smell,
but no notice leakage. Check around the edges of the tanks for discolouration, usually green or yellow or slightly rusty colour. |
#7
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You probably didn't get all of the air out after the coolant change.
Why did you fit a cooler (71c) thermostat? Apart from taking forever to reach normal operating temp (88-89 celcius) there's no advantage.
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[CENTER][SIGPIC][/SIGPIC][/CENTER] [CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER] |
#8
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Quote:
Coolant expands when its hot and contracts when its cold, that half the reason the reservoir is there.
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Its just the internet dude, its not real. F.B. Racing 01 WRX (STI badged) 2010 XR5 Focus 06 Impreza Hatch 2.0i |
#9
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I fill it up to the max line on the overflow bottle (never over) and then over a few weeks it goes to below the low line (when cold).
Rossco, for some reason I thought that it would be better for the engine to run cooler than stock. Too late now, stupid I know . But most of the days I the car spends idling in traffic to and from work, so that is the reason I wanted it to be a bit cooler. Why would air in the cooling system cause my car to use coolant? The car has never overheated, and the temp gauge is in the middle of the gauge once warm, never goes over half. Adi |
#10
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Check your heater core
Just pull the carpet back a bit on the passengers side. Mine did this.
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Straya |
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