AAP356 Coolant radiators and temperature regulators

Ed
I know this will be a long shot for you but AAP356, Coolant radiators and temperature regulators, may cover what you are looking for.
I say a long shot because it was issued in 1943 and is most likely focussed on american aircraft in service at the time.
There are a couple of copies at the AWM. One copy suggests that it covers american supplied equipment and the other is neutral as to source of supply.