Running Hot

Johnny Dart said
Which part dont you agree with ?
Sounds as though you are talking about a "Closed Cooling System" with a recovery tank,which (I'm guessing) 9 out of 10 cars on this site "dont" have.Im assuming the OP does not have a CCS.
The proper way to fill a radiator without a CCS,is just above the top row of fins. The top portion of the radiator is for expansion.
Click to expand...

You are right about the closed system.
I was thinking recover system, which also makes my "recovery valve spring in the rad cap pointless.
Sorry, My bad.:D

I don't like leaving air gaps in the radiator because at higher RPM's it will aerate the coolant. (The waterpump WILL suck it down) But I guess thats just personal oppinion.