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Steve Tinker · 01-27-2017, 02:18 PM

Jeeper,
Did you remove the rubber hoses going to the front rads, or did you just drain from the drain plug in the manifold?. Just draining from the manifold bolt won't get all the coolant out.....

When filling manually, it will take quite a while with the engine @ operating temps and the pressure relief valve open for at least 3-4 COMPLETE heat cycles before all the air is expelled.

As JFP says, a vacuum evacuation is much quicker and more thorough than doing it manually.....

01-27-2017, 02:18 PM	#8
Steve Tinker Registered User Join Date: Dec 2008 Location: Queensland, Australia Posts: 1,522	Jeeper, Did you remove the rubber hoses going to the front rads, or did you just drain from the drain plug in the manifold?. Just draining from the manifold bolt won't get all the coolant out..... When filling manually, it will take quite a while with the engine @ operating temps and the pressure relief valve open for at least 3-4 COMPLETE heat cycles before all the air is expelled. As JFP says, a vacuum evacuation is much quicker and more thorough than doing it manually..... __________________ 2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley. 2001 MV Agusta F4.