08-11-2017, 01:40 PM
If you overfill, it WILL spit it out! The over-flow pipe isn't very large in diameter. During a rebuild I cleaned out all the galleries in the block and head (it's amazing how much crap settles in there) as well as clearing out the radiator (original) by repeated backflushing. My RP sports a four-blade export fan due to where it lives, (it gets hot here in summer) but I can testify to the fact that it got to the top of the "Col de la Bonnette" at 2808 metres without overheating, and that was a hell of a long uphill slog. If anything on a normal cool day it takes a tad too long to warm up. A pal of mine who had an A7 special ran it without any cooling fan and most of the time it had no overheating issues (except when stuck in traffic for a long time)
If the car suffers from the occasional boil on a long climb you could always run with one half of the bonnet open (carb side), held in place with a bungee. Amazing how much heat can be dissipated this way.
If the car suffers from the occasional boil on a long climb you could always run with one half of the bonnet open (carb side), held in place with a bungee. Amazing how much heat can be dissipated this way.