Postby Hasbeen » 19 Jul 2016 12:43
All my 7s have run with the coolant a little over 2" below the cap on the header tank. All bar one of them would settle there, & run for months, & thousands of kilometres at that level with no problem.
With one that ran a little warmer, I fitted the overflow, rebreathing bottle from a Toyota Cressida. These are square & fit nicely in the gap beside the radiator. This kept the coolant right up to full.
I fitted the same thing on my current car, when I fitted the new engine, the air conditioning system, & a high output alternator, as insurance against overheating. It works perfectly. I use a 15 PSI rebreathing cap.
Hasbeen