2011 IC CE (MaxxForce7) Engine Fan.

[@Carwashfreak1233]

Love the sound of acceleration with the engine fan.

[@rjhowtos4130]

Me toooooo

[@rattanaphonevongphakdy9547]

Just sounds so satisfying

[@Ermac_Boss]

Same when Im on my bus I always wait for that sound

[@rexstanley5120]

I loved the sounds of these engines but why is it the good sounding one that has defect problems

[@robogoat23]

Now that made my day! Especially when the fan backed out as it went off. LOVE IT!

[@ManuelMendoza-hv9xu]

Zpzlzlls lo lsldlsoslsoldldolslskslskdlskd

[@Kadencabs]

I’ve always liked the idle noise 0:31

[@BS-qr8wc]

I have always wondered where that noise came from! Now I know where! Thanks!

[@rjhowtos4130]

Me toooo

[@bus9331]

love the engine fan

[@brandonpryormusic]

Yup love that sound.

[@09ThomasEF]

I'd hate to live near one of those intersections and hear that every morning! LOL

[@ethanlozano2814]

FUCKING AWSOMEEEEE!!!!!! That sound is in my heart.❤️

[@ivorton23]

I drive one of those at a headstart...it always makes that sound when its cold...I kinda like that sound....broke down yesterday after a field trip for malfunction abs module....out of service for the rest of the school year...it sucks cuz I love my bus

[@WolfGaming323]

i love that sound

[@ICFE300]

I can see it being annoying to a person not into buses.

[@kodydakin9465]

My 01 thomas I bought has the the switch i love the sound of it

[@TJchad]

I want me a maxxforce7 I love em

[@nicksevers8045]

Why are the VT365 and the Maxxforce 7 motors so slow compared to the DT466E and the Maxxforce DT?

[@rexstanleyf.s.g.s.m4869]

Is it just me or does the 2011-14 maxforce 7 sound different then the older ones?

[@antiqueelectronics2462]

To me they sound the same!🤔

[@austinwilliamson2920]

The 2008/2010 were the same as the 6.4 ford power stroke but 2011/15 had some changes

[@charlesrodriguez7984]

@@austinwilliamson29202008- 2011 had one variable geometry turbo and 2012-2015 had two turbos but both engines were basically the same thing except for the turbos.

[@titanicwhiz]

There goes 30hp+ with that fan!

[@jordantrivett3587]

I ride on of these and in the morning I sit in the middle of the bus and I can hear the turn signal from there.

[@RykonYE]

Sounds epic is it a switch that turns on the engine fan?

[@ZacharyDavis-hf2qk]

Yes it’s is well i think i have no idea

[@CR-hc7ld]

Wish I could get my fan to run like this. It cuts out after maybe a minute or so and I've never gotten it to re-engage even up to running temp.

[@ICFE300]

This bus always does it when it is first started even when it's cold out. Otherwise it hardly ever ran.

[@CR-hc7ld]

@@ICFE300 I see. How often does 63's run? By the way I love your bus!

[@BigeSnek]

Why did it shut off at the end?

[@LZGAjeepslav799]

Rift SilentOrb In this case, the MaxxForce 7 has a hydrostatic (also called a viscous) fan clutch. This particular type of clutch has a bi-metal spring on the front face of it (the side facing the radiator). When the air temperature coming through the radiator reaches a certain temp (usually 195-212°F depending on part manufacturers specs), the coils tightens releasing the silicone oil in the outer chamber of the clutch into the center chamber which locks the clutch up to match rotational speed of the water pump. This is how the fan speed is dependent of engine RPM and makes an audible noise difference as engine speed changes. When air coming through the radiator cools to a temp between 195-180°F, the oil is slung back out by inertial force into the outer chamber, thereby disconnecting the the driven part of the clutch from the driver (the water pump). This is why the fan noise slowly fades off when the clutch disconnects instead of instantly shutting off, because the inertial force doesn’t evacuate all the oil from the center chamber immediately. You’ll also notice with this type that at idle, they are almost always locked up. You idle between 400-800RPM which isn’t fast enough to keep the oil out of the center chamber, which is a good thing because at idle there’s not a lot of airflow and with it being half locked up at idle, helps keep A/C from warming up along with the engine maintaining temp. Then by the time you reach 1k-1,200RPM when taking off, it disengages because it’s not hot enough to stay locked up and there’s enough rotational force to evacuate the oil out of the center chamber. This is also why when cold starting a vehicle equipped with a viscous clutch and the fan runs for 3-5 minutes, it’s because the silicone seeps back into the center chamber as it cools and no inertial force is acting upon it. So when you start the engine, even if it’s warm but has sat maybe 20 minutes and the fan comes on, that is why. It’s just doing it’s normal thing. Now on a lot of air brake equipped trucks with Cummins engines, such as the ISB6.7, they use a Horton brand air actuated fan clutch. I don’t know how the whole system operates, but it runs on the same principle, just substituting silicone oil for compressed air. There are a few apparent differences between air and viscous clutches though does not affect overall cooling performance. One thing is they the clutch is a lot stiffer. When the engine is off, you cannot spin the fan even if you lift the vehicle in the air and pull yourself off the ground by only a fin on the fan. So when the clutch locks up or disengages, it’s instant, it doesn’t ramp up to speed or fade out like a viscous clutch does. I can reply to this comment with a KZbin link of a vid to show what air actuated clutches sound like when they (dis)engage. Lastly the only bad thing about this style is from what I’ve heard, if your air tanks are depleted and the engine gets hot enough to kick the fan on, it may not kick on and engage 1:1 with the water pump, or it may not kick in at all until there’s enough air pressure built up in the system. I guess I should’ve started with this statement first, but the whole purpose of a engine driven fan clutch is to provide great cooling performance when needed and disengage to save on power and fuel mileage when the extra cooling force is not needed, granted that the clutch is performing properly. On a lot of classic vehicles, you’ll notice the fan is bolted directly to the water pump, which means it’s spinning 1:1 with the engine the whole time the engine is running. It will definitely keep the engine from overheating but it will rob fuel economy and some power even if it’s only a 5HP drag coefficient. So by placing a clutch between the water pump and the fan, it gives you the best of both worlds. I could also mention that there’s other factors that can affect how well it cools and how much power it robs from you, such as plastic vs metal fan blades, the angle the blades are pitched at, and the number of blades (4, 5 or 7 for most passenger vehicles and 12 or 15 typically for trucks and buses). I find plastic fans are much louder irregardless of blade pitch than a metal fan, especially the more fins there are. Electric fans are nice, but when they only have 12volts running to them at high speed, they can only pull so much air through to cool the engine, especially at idle is where they fall short the most. Plus if the engine is off, as long as the battery is still connected, they can still come on unexpectedly. If your hand is in the way when it does, it’ll take it with it. With clutch fans, if the engine is off, you don’t have to worry about it cutting a hand or an arm off. On my second gen Grand Cherokee, it came stock with a electric fan but not having the tow package, it didn’t have a engine driven fan installed in addition to the electric one. I installed a metal 5 blade clutch fan because it kept overheating a lot and solved my issue but it was quiet compared to what I expected. But then you go to my third gen Grand Cherokee with the 5.7 HEMI, it has a tow package but the original owner took the fan clutch out when it failed and didn’t replace it, he just left all the work to the electric fan, which could not keep the AC blowing air cooler than 78° on a brisk summer day. I reinstalled a factory plastic 7 blade fan clutch assembly and it was much louder, more on the spectrum of what a bus sounds like, but also got my AC blowing air down to around 40° which is a huge difference and my exact intent of installing it.. besides the fact that I love of the sound of a roaring engine fan lol. I know it’s a lengthy response but I hope it explains well.

[@LZGAjeepslav799]

Here is the video link I said I would l add in a reply. Be aware of your volume first because it is gonna be loud obviously. But notice how the air actuated clutch locks up instantly and within the 3-4 seconds before the video ends, it instantly cycles off. kzbin.info/www/bejne/d6aqhGSCg7l5n6c

[@BigeSnek]

Real JeepDipper Thanks :)

[@charlesrodriguez7984]

@@LZGAjeepslav799a lot of new buses with the Cummins still come with viscous fan clutches. Electric ones are better imo because they often don’t run unnecessarily long and often don’t get stuck engaged like fluid clutches.

[@EASProductionsGaming]

it sounds like it needs more coolant.

[@antiqueelectronics2462]

Yeah I thought that too

[@goomanhlr5697]

Does this have the 6.0 or the 6.4 one in it?

[@Reese-Tube]

6.4L

[@computerguy5437]

Why does the fan kick in?

[@jstkyoshi]

These particular types of fan clutches upon start up kick in because the fluid in the clutch hasn't distributed and is pooled in one spot, thus keeping it engaged until it does. It will stay engaged until the silicone gets evenly distributed within the clutch, and it will release until it heats up enough to engage again, typically around 220-230 degrees Fahrenheit.

[@charlesrodriguez7984]

@@jstkyoshisometimes the fluid clutches seize and either get stuck on or stuck off. A lot of ic CE buses in my district (2020-2022 models. With Cummins ) have the fans stuck on 100% of the time no matter what.

[@jstkyoshi]

@@charlesrodriguez7984 Oh, well that can't be good.

[@jthegoat38]

Sounds good but probably the worst international has offered

[@GMC6523]

when was this bus built?

[@ICFE300]

2011

[@appleapple9936]

This thing screams lol

[@bluebirdvision]

The water temp is at 140 and its already kicking on? Weird

[@jstkyoshi]

That's normal on these models. Even on the VT365s they did that too upon start up. It's the fluid in the fan clutch when cold needs to redistribute itself and then it'll disengage after it warms up until there's a point where additional cooling is required for it to kick back in. Typically around 220 or 230.

[@SMSpartan101]

How do you get it to rev up that far and go only 25 mph?

[@BlackLightning4547]

Brayden Serna There's something called throttle input and gear ratios

[@MiguelMartinez-vl9yw]

MY 709 GET OUT OF IT

[@Ermac_Boss]

How does it turn on???

[@Reese-Tube]

It turns on automatically.

[@urielhernandezT150]

I hate the maxxforce 7s

[@5.43v]

They're bad

[@Reese-Tube]

Never had an issue. They run and sound amazing.

[@ManuelMendoza-hv9xu]

Xxz