Radiator Fans Explained Good Better Best Autorestomod Episode 393
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- Опубліковано 16 січ 2019
- Radiator Fans Explained Good Better and Best Autorestomod Episode 393
The Radiator Fan is the most unsung hero of your cooling system. The fan, be it a clutch fan, fixed fan, flex fan, or electric fan, works to keep your car cool. We look at the fan and why it is important to your car’s health, we look at which fans are good at their jobs. We look at why the Big Three went to clutch fans. We talk about flex fans and why they can be a liability.
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Thanks for watching!
Jeff Ford Contact:
Jford@autorestomod.com
Parts:
www.vintageair.com
Monster-duty fan clutch 3.375 IN. Part #: 32001-VUF
Clutch Fan Blade 18 IN. x 2 IN. Fan Part #: 32518-VUF
Three minutes of this is all i could stand, constant talk over one and another
in 1968 i was in Tulsa at the worlds points finals. i saw a REAL hemi cuda. the guy went to check the timing. he grabbed the fan, a flex fan. and the other guy started the engine and slipper fan did the slipping for him. so he get the timing light in to the engine. and he checked the timing. NO trouble.
For the fan bolt washers I use SAE washers instead of regular cut washers ; they don’t extend much beyond the bolt head.
I like the woosh from the mechanical fans. The electric fans sound like drones. And the mechanical fans are always turning and moving air, I had an electric fan with abd it was either on or off and it would draw quite a bit off the battery. At idle the motor would struggle a little from the fan kicking on. Yes I may have been able to get a different controller with more options for fan controls but the fan wouldnt kick off until I got moving around 20 mph.
I have A 400hp 383 in 83 firebird.
You guys rock! Thanks for the help.
New subscriber. You guys do great work.
Great episode ...biggest problem I had with elec fan was the draw at a idle at night , the defroster on or heater AC etc the bigger fans or two running at the same time need full amps to flown full speed at idle. I had a 70 amp alternator at around 600/625 rpm a little higher than spec in gear automatic C6 with headlights on heater etc I would drop below 12 Volts on the battery with fan going that effected my elec ignition module that needed constant 12v . I eventually put a 1 wire 140 amp tuff stuff alternator like you have there but then after 1 year the temp control module went out .
I have a 68 Torino GT with a 390 ci. All the books that I look at seam to be missing the section that says a 68/69 Fairlane/Torino came with a 390 or bigger when it comes to the radiator and fan shroud. All the other parts you can find just not the cooling parts. I have had the radiator record, but I cant find anyplace that tells me what shroud I need. Any help would be appreciated.
You guys are Great. Thank you
The inrush of current in a motor always exists because the motor needs to set up the magnetic field in order to cause rotation. You can protect the wire with a fuse that is time delayed to accommodate that. However the wire gauge also must be larger and the wire’s insulation must be rated for the fans and the heat generated within the engine compartment. Since the coolant sensor is turning the fan off and on than the inrush becomes frequent enough to overwhelm the wires’ insulation. That is why you are seeing burned wires.
This helped alot for my chevy monte carlo
The dealership I worked at had a fan recall in 75-76 for fan explosion. Lost 20 lbs Jeff? Looking good .
I got a 66 Impala coupe with a 283 and AC, currently has a fixed fan but my shroud is cracked on the top and bottom and it’s running hot. I’m going to replace the shroud and hopefully that fixes everything. I only have issues when I’m on traffic so I think the fixed fan is best because it’s always going but I do like the idea of a clutch fan, if I switch to a clutch fan will it be cooler or just save hp?
hey @autorestomod what size fan did you use in the F100? I got an 18in and it only leaves 1/4 inch from the shroud on top. Factory was 17.5 should I have gone with the 17in?
What would suggest for a 1970 ford van e200 want to change the fan and radiator
My set up looks the same as yours. The clutch is about 2, 2.5 inches from the radiator. Yet the fan blades are just inside the shroud. (Just like yours). Is that right? Or should I put a 1 inch spacer on to set in deeper into the shroud?
Great episode! I still have my stock fan in my '72 F100. I think I will soon upgrade to the Vintage Air fan & clutch. It's gotta be worth 1 mpg in an FE right??? Or am I being optimistic? HA!
Another great episode...I'm a fan. Haha, see what I did there...welp, I'll keep my day job then.
What about a clutch fan with a vey rusty thermal spring. Will this affect thermal operation of lockup?