Hi Steve
As it happens I was just this afternoon speaking with Rex Ward, and I have arranged to swing by his place on Thursday with the old one, and pick up a replacement from him, along with a new piece of hosing that goes down to the bottom of the rad.
With this deadline in mind I grabbed a few minutes after I walked my dog at tea-time tonight, and took a short (slightly shaky) video of the play in the fan.
[video=youtube_share;v-6mUOgceMA]
I then after getting the belt slackened right off proceeded to removed the 4 bolts holding the fan in place. As recommended I had some cardboard in place protecting the radiator. As you say, access to the bolts sucks, however I have small hands and so was able to get them off with only, for me, a small amount of swearing :argh::rofl:
I'm busy now for the weekend, but hope, weather permitting, to finish the removal job on Monday. I hear what say about taking the rad out, I shall give it some thought as they say
Kind regards
Vulture