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Old 10-09-2018, 05:22 AM
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Huskymaniac Huskymaniac is offline
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Location: Corning, NY
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Re: Might have a blown headgasket

Quote:
Originally Posted by 92 SVX View Post
with the cap open and idle you won't ever overflow it, the expansion is under pressure
I thought the expansion causes the pressure when the cap is in place to constrain the expansion. Without the cap I would think the coolant would just freely expand.
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1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads
2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil
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