For sure! Those are big blades and there's lots of 'em. As far as fan clutch life, I installed a Napa replacement in an RV park in '93 about 200,000 miles ago and it's still fine. Turns out there was nothing wrong with my original, I'd just installed my ATS turbo and pulling my horse trailer over 1000 miles in about 100 degree summer heat my engine was running a bit hotter than I liked on the long grades. Thought the fan clutch might not be fully locking but turned out the real fix was to convert my front bumper to the later air-hole factory turbo style for additional air through the radiator. Made a big difference. Still got my original clutch for when the Napa finally gives up. Comparing the two at the time it looked like Ford's and Napa's were supplied by the same vender.I can attest to the fact that NOTHING cools like the factory set-up.
No..there is a "chamber" filled with a liquid that reacts to the heat from the radiator. Hard to explain so lets see if I got it right.Is teh coil spring on the front what actually ingages the clutch? does this need to be replaced? Pulled my fan off the other day and it looks pretty rusted, just got the truck and have not driven it 15 miles, to many issues to put on the road... So fixing those first.
I have no idea.OK makes sense, So what is the coil on the front of the fan clutch for, it looks like an old time coil thermometer
That must be the design of that particular fan clutch...Seen plenty over the years that DON'T have that.That's a bimetallic spring that tightens (or loosens?) with temp change and when it does so it allows the silicone fluid to lock or unlock the clutch. It's important to not let it get crudded up with grease and dirt.