CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
Severe Duty fan clutch may be too much
- Thread starter Chief Brody
- Start date
I am definitely changing it...I don't need a "severe duty fan clutch"...I would run a standard one if I knew who made a really good one. Are HD fan clutches loud also? Probably no where near what a severe duty is?
I've got a 91 with a 350, why do they list both clockwise and counter clockwise fan clutches for it? Don't they all turn clockwise?
I’m pretty sure some trucks (1 tons?) could have had the V and ribbed belt combo with I think is standard rotation and light duty would have had a serpentine set up.
So serpentine are all reverse rotation? Damn, now I need to actually look at the fan spinning. The rotation is determined from sitting in the drivers seat, like it's always been right?
Yes, a complete, true serpentine system has a reverse rotation pump / clutch / fan.
Hayden or AC Delco? Hmmmm
I ordered an AC Delco....I pondered the Hayden...then pushed the button on the ACDelco Professional
I don't think I have ever read so many reviews on an auto part that was as low and high as the reviews on fan clutches:
"Had to buy 4 before I got a good one"
"Greatest fan ever created even though it is $195.00"
"Made in Merica, these are the best"
""Total crap, and they aren't made in America"
"The one part you better go OEM on"
"Better off going after-market on fan clutches"
"Had to buy 4 before I got a good one"
"Greatest fan ever created even though it is $195.00"
"Made in Merica, these are the best"
""Total crap, and they aren't made in America"
"The one part you better go OEM on"
"Better off going after-market on fan clutches"
Problem with auto parts is that half the owners are morons that don't really know what they are doing, and parts are an absolute crap shoot anymore. I make mistakes with stuff, as most all do, but it seems online people want to blame the parts before themselves.
I never understood back when parts stores warrantied batteries for the same reason. Default answer for the owner with a dead battery always seemed to be get another battery, don't do any diagnosis to make sure it was the real problem. And when they killed that one in a couple of days, THEN they started looking at the charging system.
I never understood back when parts stores warrantied batteries for the same reason. Default answer for the owner with a dead battery always seemed to be get another battery, don't do any diagnosis to make sure it was the real problem. And when they killed that one in a couple of days, THEN they started looking at the charging system.
bp71k5
3/4 ton status
You’re joking again right?
Nope, I never considered where the rotation for of the fan, water pump, or fan clutch was taken from.
Think about it. Right and left hand parts are determined from the sitting in the drivers seat, not standing in front of the truck/car. Who's to say some genius didn't decide rotation of the engine is from looking at it. I never gave it any thought. I know which way the crank turns while it's running and which side is right and left when talking about heads or exhaust manifolds. But if you ask me if the water pump is revers rotation or not I have no ****ing clue. I can look at it and see which way it's turning but from location is the clockwise or counter clockwise determined? It doesn't sound that stupid to me.
I just thought about it and it is stupid. Is actually just reverse rotation of the crank? If that is the case the clockwise and counter clockwise really mean nothing.
Last edited:
No the crank is the same, its reverse because of the way the belt runs across the water pump pulley turning it in the opposite direction (vs a V belt application).
I know the crank spins the same. Now that would have been stupid.
Since boats can have reverse rotation engines I figured I'd say it out loud.
- Joined
- Jul 18, 2000
- Posts
- 1,695
- Reaction score
- 2,115
I run Workhorse RV/Medium Duty fan clutches on my K10 and Burb, as I am not a believer in E-fans. They make some noise and eat up some power but I have yet to run into cooling issues crawling around at 3 MPH in the Desert with the AC blasting. Everything is a compromise
- Joined
- Jul 18, 2000
- Posts
- 1,695
- Reaction score
- 2,115
I ordered them through work (Navistar = Workhorse Parts)
bp71k5
3/4 ton status
Yea, the drivers seat aspect does make sense for everything else so not a dumb question, just thought you might be kidding since I’ve always read the engine rebuilder books mentioning the engine rotating clockwise while running. No offense intended.
I would think crawling around with AC on is where E-fans shine, as they make full CFM at idle. I notice that my e-fan XL A/C blows a little colder sitting at stoplights than my m-fan (is that term?) Suburban (virtually the same system filled with the same refrigerant). Some would say mechanical fans are more reliable, but factory ones often go a quarter million miles, while a viscous clutch is a wear item and spare relays are easier to pack than clutches. For towing it's m-fan all the way for the giant CFMs.
