Quote:
Originally posted by rustang girl
K, fan shrouds funnel the air, I understand that. But what I don't understand is why they make such a difference.
I would have ordered one long ago, except I've been hoping to find one in a pick a part yard, no luck, so I ordered it on Sunday. Can't wait for it to get here. = )
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The fans job is to suck air through the radiator when the vehicle is not travelling fast enough to do it naturally, which is roughly at speeds below 20 mph. Simply putting a fan behind the radiator isn't enough by itself. The fan will draw in air from the point of least resistance, which means the majority of the air it will move will be from underneath the car, and it won't go through the radiator at all, or minimally at best. When installed correctly (with the fan half in and half out, if viewing it from the side), the shroud makes it so that the only place the fan can get any air is through the radiator. If it makes it any easier to understand, think of it reversed; if the fan was blowing forward, where would the air go? Without a shroud, it would hit the radiator, and deflect everywhere else, but with a shroud, it would have to go through the radiator. Air moving through the radiator takes the heat with it, and allows the newly cooled water to re-enter the engine so that it can transfer some more of the heat from the block to itself, and go back to the radiator to do it all over again.
Quote:
Originally posted by rustang girl
The mechanic in Bakersfield who worked on it once told me I could also get a 5 or 6 bladed fan blade (I don't remember the number right now, I knew it when I ordered it hehe) He told me it would help w/ my overheating problem, which is my main concern, but he also said it will slow my car down. Take away power. How much of a difference do you think it'll make?
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Don't worry about it right now. If it still overheats, something else is wrong. You also could have him install what's called a "pusher fan" in front of the radiator. It's an electric fan that is thermostatically controlled, and only comes on when you get too hot.
Quote:
Originally posted by rustang girl
Yes, it has a new thermostat, and I've been told it's working.
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When you get it back, start it up and let it idle. Every few minutes, feel the upper radiator hose with your hand. It will slowly get warm, then rather suddenly get hot. That means your t-stat is opening. This should happen within 10 minutes of idling. If it doesn't, have someone install a new 180 degree t-stat, preferably bought at Ford (their t-stats are MUCH better than Pep Boys).
Quote:
Originally posted by rustang girl
I've been wondering about that. My radiator cap is too low. But everytime I talk to a mechanic, or Kregen, they tell me it's better to keep the low one. Something about if I put a stronger one on it won't let it blow steam. I think that's what they told me.
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Go to an auto parts store, and buy a Stant LeverVent(something like that) 16 pound radiator cap. It will have a red lever on top of it to release the pressure without burning your hands. Put it on, and ignore anyone that tells you differently.
Quote:
Originally posted by rustang girl
Oh, another question for you, why would the radiator water look like rust if it's a new radiator, and new engine? Only ran it for maybe a month before I noticed it wasn't right.
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Because they either didn't flush out the block, or because the heater was turned on.
Quote:
Originally posted by rustang girl
hehe Have you ever lied to me before? I'd have to say no. = P
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For the record, I still haven't.
Take care,
~Chris