This is not a question, but a solution.
I've been putting up with a shriek from the water pump on my Herald pick up (and in it's previous life as an estate) for some time. Always on application of a fairly heavy right foot.
Enough was enough, ordered the correct 1500 Spit pump from Paddocks and fitted yesterday.
Bliss! no more shriek.
Apologies for an innocuous post.