Re: EB not running right
What you’re describing there sounds like a faulty clutch fan (that’s the fan on the front of the engine). They operate via a clutch mechanism that when it starts to get hot (as detected by a bio-metal strip) the strip contracts forcing the clutch the engage, otherwise the fan relatively free spins. If the clutch sizes up for any reason it will cause the fan to run continuously, causing enormous drag on the engine and resulting in very poor power and fuel economy. It is a common issue these days with Ford EB and ED’s and many people do not realise. You will quite often hear a Ford drive past with the clutch fan engaged when it’s a stone cold night and it really should not be on at all. This also explains why you think the fans are running overtime. They are, but it’s not to cool the engine down at all. I’m guessing it’s the bio-metal strip that’s causing the issue as you have said that on some cold mornings it runs fine for a little, and then changes suddenly; these can stop flexing as they should and cause the fans to stay on in heat ranges they should be off. I agree with the above posters on taking it to a reputable radiator specialist as they will be able to tell you if it’s the clutch or not, but you can test it to a degree yourself too. With the engine off and cool try to move the fan blades, you should not feel too much resistance and you should be able to give them a spin and they will spin by themselves a few times. If you notice a large amount of resistance or they do not spin a few times after you give them a flick then the clutch is almost certainly faulty. Either pickup a clutch fan from the wreckers that spins freely, or do the thematic fan conversion.
On a side note a radiator specialist stuck his hand into a running clutch fan once to demonstrate this point to me. I do NOT recommend you try this though. Basically what he was showing me is that there is enough resistance to turn the fans with the engine running, but they do not engage till there is enough heat to cause the clutch to engage. A faulty clutch and he would have had no fingers.
Oh, and as for the power steering; it’s not going to cause your engine to run hot at all. What you will do is destroy the pump yes, but that’s not going to affect the engine itself.