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Old 08 July 2009, 11:18 PM
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darren080987
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Default pressure in cooling system

plz help i have a v3 sti bottom end went so i replaced it with a recon engine 200 miles later head gaskets went i replaced them 500 miles ago now the cooling system seems to be over pressurised i ve relaced cooling cap water pump new steel head gasket radiator and water pump.
Old 08 July 2009, 11:26 PM
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Antony@indigo-gt
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How much pressure are you talking about is it coming out of the cap? Have you tried a sniff test on the coolant as a start point?
Old 08 July 2009, 11:31 PM
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darren080987
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yes sniff test was done all seems ok pipes are solid
Old 08 July 2009, 11:38 PM
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EJ22 LAD
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TRY THE THERMOSTAT MATE
Old 09 July 2009, 10:11 PM
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fastboyslim
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What is the "sniff test" if i may ask?
Old 09 July 2009, 10:26 PM
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Antony@indigo-gt
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It checks for exhaust gases in the water system, which is sometimes a symptom of headgasket failure
Old 09 July 2009, 10:58 PM
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dj219957
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is the car overheating? is it loosing water? if its loosing water where from?

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Old 09 July 2009, 11:35 PM
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Rob@Indigo-gt
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May be a bit of a bitch to do, but try a re-torque of the head studs. Excessive pressure can leak from the gasket and sometimes not show up on a sniff.

Since you did not say overheat then the rest of the cooling system checks out fine?

Without an eyeball on the situation, my attention would be focussed on the gaskets/heads.

.
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