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Ian Anderson · 02-21-08, 03:52 AM

Rick

I'd say the exact opposite

Fill the radiator and have a non pressure cap on it (sealed)

Then in the header at the highest point in the system put the pressure cap on so when the water expands it expels any air first so the hot water will fill the system and header

The other way around and your radiator could get air in and not necessarily bleed it back to the header.

Ian

02-21-08, 03:52 AM	#3 (permalink)
Ian Anderson IanAnderson Gold Supporter Join Date: Nov 2003 Location: Heathrow, London, UK GT40: Dax 40 Mk1 (Rover3.9EFi) Posts: 1,281 Rep Power: 17	Re: Radiator caps and pressures Rick I'd say the exact opposite Fill the radiator and have a non pressure cap on it (sealed) Then in the header at the highest point in the system put the pressure cap on so when the water expands it expels any air first so the hot water will fill the system and header The other way around and your radiator could get air in and not necessarily bleed it back to the header. Ian __________________ Purchased a pile of bits said to be a DAX40, Got it on the Road June 2006 (Thanks Paul) Still tweaking EFi and getting used to driving with a grin on my face!