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John. · 23-09-11, 04:16 PM

One thing that's sometimes overlooked is the cap. If it doesn't hold pressure then the coolant's going to boil at 100 degrees and it'll perculate away. Pressurising the system raises the boiling point.
J.

23-09-11, 04:16 PM	#9
John. 4 ring whore! Classic Audi Club Member Join Date: Mar 2011 Location: Scottish Borders. Posts: 7,540	One thing that's sometimes overlooked is the cap. If it doesn't hold pressure then the coolant's going to boil at 100 degrees and it'll perculate away. Pressurising the system raises the boiling point. J.