Author Topic: LoopSoosStroop's 2006 X MT - IS DEAD  (Read 25195 times)

February 02, 2016, 05:22:31 PM
Reply #180

FozzieDriver

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I have s theory about my engine woes.
I had a decat and tune done by a reputable tuning company and I fear that my car may have been tuned a bit lean with too much boost.
The crown of my piston cracked off and went out my exhaust through the turbo.
The head gaskets went and pressurized the cooling system and the radiator popped.
Then Subaru did the HG job and never even looked down the bore of the motor.
So 60k km later the fuel pump packs up and it runs lean again and boom. Engine rebuild time.
So infuriating.


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Forester XT 2008 MT
TD04, STi IC, 76mm DP, GFB EBC, Coolboost WMI, WHP built and Intent Tuned. Blue Wasabi V3.5

February 03, 2016, 10:25:32 AM
Reply #181

Bravofox

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I wonder if replacing the coolant more often would help?
Or if one can fit a coolant conditioner filter like what you get on the big Diesel engines.
2015 Outback 3.6R-S
-ex- 2006 Impreza 2.0R Wagon.
-ex -2009 SH XT A/T
-ex- 2009 SG9 XT Premium Manual
-ex- 2006 Impreza 2.0R Manual
-ex- 2002 Legacy 2.5GX A/T

February 03, 2016, 11:05:48 AM
Reply #182

LoopSoosStroop

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I wonder if replacing the coolant more often would help?

Definitely, just about the only thing you can do.

2007 XT AT
Midrand - Gauteng

February 03, 2016, 11:30:03 AM
Reply #183

Manfred

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Or like someone mentioned on the forum, put a sensor in the coolant reservoir.
When the coolant starts overflowing into the reservoir a buzzer sounds or a light comes on.
This could help prevent the radiator from bursting, maybe the head gaskets as well.
Pretoria

2011 XT Sportshift
2013 Ford Fiesta Ecoboost (Turbo Triple)

February 03, 2016, 11:35:28 AM
Reply #184

LoopSoosStroop

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Or like someone mentioned on the forum, put a sensor in the coolant reservoir.
When the coolant starts overflowing into the reservoir a buzzer sounds or a light comes on.
This could help prevent the radiator from bursting, maybe the head gaskets as well.

No, the coolant overflows into the reservoir because the head gasket has gone. Or at least in this case (and some other suspected ones). 

The sensor might save your radiator, but not your head gaskets.
2007 XT AT
Midrand - Gauteng

February 03, 2016, 11:57:30 AM
Reply #185

Manfred

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Oh ok, so only to save the radiator then.


Is there not a head gasket that can be used that resists the acidity?
Pretoria

2011 XT Sportshift
2013 Ford Fiesta Ecoboost (Turbo Triple)

February 03, 2016, 12:35:31 PM
Reply #186

LoopSoosStroop

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Is there not a head gasket that can be used that resists the acidity?

Apparently the OEM one is pretty good. It's just a tough environment....  :P
2007 XT AT
Midrand - Gauteng

February 03, 2016, 12:38:47 PM
Reply #187

JoeDijeaux

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Before we go too far, remember that the overflow bottle is there to catch coolant that is pushed out because coolant expands as it gets hot. This is normal. A full overflow bottle by itself isn't a reason for alarm. You'll see a full bottle anytime the car goes above 99 degrees for whatever reason (like running the aircon in the middle of the summer while climbing a pass or sitting in traffic). Unless you see a constant stream of bubbles in your radiator, you don't have a head gasket leaking into your coolant. Unfortunately that's the only sure tell.

Run Torque and set an alarm for when the temps go above 99.

To prevent the coolant from going acidic, change it once a year AND check for current in the coolant. If there's current, it means there's an electrical problem somewhere. Check for corroded earth wires.

February 03, 2016, 03:17:34 PM
Reply #188

Bravofox

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...check for current in the coolant.

Could you maybe explain how to to do this with a multimeter? Do you test for stray voltage? Or do you look for an amperage reading somehow?
2015 Outback 3.6R-S
-ex- 2006 Impreza 2.0R Wagon.
-ex -2009 SH XT A/T
-ex- 2009 SG9 XT Premium Manual
-ex- 2006 Impreza 2.0R Manual
-ex- 2002 Legacy 2.5GX A/T

February 03, 2016, 03:34:36 PM
Reply #189

JoeDijeaux

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...check for current in the coolant.

Could you maybe explain how to to do this with a multimeter? Do you test for stray voltage? Or do you look for an amperage reading somehow?

Connect the negative terminal of your Voltage meter to the battery's ground (or anything that will ground it really) and carefully dip the positive terminal into the radiator, trying not to touch the sides. You're looking for something in excess of about 0.1V. The most science-y way of performing this test would be to have the engine running and people switching things on and off, e.g. the lights, radio, operation the windows.

February 03, 2016, 08:43:45 PM
Reply #190

westcoaster

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And the XT has blown its head gasket on 190k km.  :P
As far as I can determine it has not overheated, and the radiator looks intact.
Not looking forward to the strip down and work, too busy with other projects at the moment....baaaad timing.

Ag, F!
Shit, sorry om te hoor, man!
Current: S-edition 2011 Steel Silver (S-exy young thing) - Forged, Chett tjooned, 76mm s/s wrapped DP, King Springs, 225/60/17 G012s, Sump & AT guards, cheap mud flaps, HID fogs, LED parks.
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