986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - I don't understand the coolant bleeder/tank system

Brian in Tucson · 02-11-2018, 02:42 PM

It really doesn't do any good if you can't hold a vacuum. Need to get it to 20 to 25 inches of vacuum, and have it hold. Problem with trying to use it as a diagnostic aid is that the compressor and the venturi vacuum make so much noise that you can't hear the leak.

The sealing and bleeding the system is just one of the things I'm currently working on. The little manifold that's part of the coolant tank is a little cute for my tastes. It will be simplified by drilling out the plastic sections and run longer lengths of rubber hose, I think. Fewer connections mean less chance of leaks.

I've got leaks.:ah:

02-11-2018, 02:42 PM	#38
Brian in Tucson Registered User Join Date: Jul 2017 Location: Tucson AZ Posts: 536	It really doesn't do any good if you can't hold a vacuum. Need to get it to 20 to 25 inches of vacuum, and have it hold. Problem with trying to use it as a diagnostic aid is that the compressor and the venturi vacuum make so much noise that you can't hear the leak. The sealing and bleeding the system is just one of the things I'm currently working on. The little manifold that's part of the coolant tank is a little cute for my tastes. It will be simplified by drilling out the plastic sections and run longer lengths of rubber hose, I think. Fewer connections mean less chance of leaks. I've got leaks.:ah: __________________ 2001 Boxster 2007 Toyota Highlander 2003 New Beetle Convertible, Turbo, Tip 6 speed