1999-2009 [Subscribe to Daily Digest] |
I find it odd your radiators are leaking when you do a pressure test. Hopefully your not pumping the system up 100 psi. Under normal operating conditions your cooling system is under pressure and if at anytime the radiator pressure raises above 20psi the expansion tank cap will open releasing pressure it's rare for a car to get above 20 psi. However its definitely not rare for a car that has a blown head gasket. The drip onto the hose you have normally isn't where the common oil leak drips but after 250,000 miles the leak might accumulate enough in that direction, and then if the head gasket is blown it might be leaking from several areas.
Your car that was bone dry with no signs of oil makes me think it's a car that's under 80k miles, or has never been boosted, or it's pushing low air for pressure, or even has a blowen bypass valve ever since you've owned it in which it can never reach maximum pressure that the system was designed for. Oil accumulates throughout the system, intake manifold, all the pipes, innercooler, everything is saturated. No oil is in the pipes from air intake, to amm, to turbo intake pipe. Oil starts saturating the system where the bypass hose meets turbo intake.
Your car or cars that are bone dry make sure the check valve running from valve cover to bypass valve, to throttle body the right direction, no check valve is needed on the 9-5 from modular to bypass and only on the line headed to the valve cover (one check valve or motor) The check valve need to allow sucking from the valve cover and bypass valve (if installed on bypass line)I mention this because if there's a check valve on the bypass line is allowing pressure but not vacuum the bypass valve will never open creating a bone dry system.
(Just a tip here) if you run your vacuum lines same as the c900 voiding out the bypass modular you'll get a far better boost in the 9-5 than if you run with the bypass modular. (No check valve from intake to bypass in set up)
posted by 174.229.13...
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