Hmmwv hydraulic fan delete, addition electric fan

[Bravojmc]

Perfecto! Thx

 

[911joeblow]

I will post pics of my set-up when I get to it on the current truck I am working on. Should be next month.

 

[tanhmmwv]

sorry for the delay....

 

[Bravojmc]

sorry for the delay....

.... well

 

[TOBASH]

sorry for the delay....

 

[tanhmmwv]

 

[tanhmmwv]

sorry again, took some time to figure out how to attach

 

[Bravojmc]

View attachment 681882

So how does it work? Any info would be great.

 

[tanhmmwv]

When the engine is cool or even at normal operating temperature, the fan clutch partially disengages the engine's mechanically driven radiator cooling fan, generally located at the front of the water pump and driven by a belt and pulley connected to the engine's crankshaft.
one benefit is that if you enter deep water, the fan will stop turning and your fan blade will not get destroyed. and you will not get that load noise like when the hydraulic fan turns on.
this one does require you to grind down the raised notches on the crankshaft pulley though.

 

[MarkM]

But with a fan with such an aggressive pitch I wonder how much air can be moved with the clutch disengaging at a much lower RPM than with a fan designed for a clutch setup.

Mark

 

[infidel got me]

fan

I am running a clutch fan on my 6.5 na. And have another running on a 6.2. Much better than the hydraulic or electric setups.

what are temps. now?

 

[Jon0249]

Thanks for the pic. Can you provide application info, i.e., year/make/model? There are a few possible clutch/fan combinations that would fit, and most turn the wrong way! Appreciate any details you can give.

 

[drivebymashing]

Any updates?

 

[JoeJrTheBarber]

I solved my running hot issue (well i think i did, havent drove the truck yet) by ditching the 20+ year old beat to crap radiator and replaced it with a nice / bigger capacity
aluminum unit. That with some new hoses and a good tune-up and i should be good to go.

From years of building hot rods and such you always start with the source of the issue and work your way out. If a vehicle is running hotter then it should or you
like the radiator is the first thing to be swapped out / upgraded. Then hoses, t-stat cap, fan, etc...

My two cents...

 

[TOBASH]

I solved my running hot issue (well i think i did, havent drove the truck yet) by ditching the 20+ year old beat to crap radiator and replaced it with a nice / bigger capacity
aluminum unit. That with some new hoses and a good tune-up and i should be good to go.

From years of building hot rods and such you always start with the source of the issue and work your way out. If a vehicle is running hotter then it should or you
like the radiator is the first thing to be swapped out / upgraded. Then hoses, t-stat cap, fan, etc...

My two cents...

I always start with old fluid and internal thermostat, but agree that you need to start basic and then work outwards.

When you hear hooves, think horses, not zebras.

T

 

[Skrilex]

I solved my running hot issue (well i think i did, havent drove the truck yet) by ditching the 20+ year old beat to crap radiator and replaced it with a nice / bigger capacity
aluminum unit. That with some new hoses and a good tune-up and i should be good to go.

From years of building hot rods and such you always start with the source of the issue and work your way out. If a vehicle is running hotter then it should or you
like the radiator is the first thing to be swapped out / upgraded. Then hoses, t-stat cap, fan, etc...

My two cents...

thats a bold statement without testing. The stock radiator is a pretty nice unit actually.

 

[JoeJrTheBarber]

thats a bold statement without testing. The stock radiator is a pretty nice unit actually.

Mine in my truck was not. Almost all the fins were smashed and the thing itself was pretty plugged up.
And anyone can tell ya a good part of the reasoning that these trucks run hot is the small radiator design that was used by AM General.

Have a issue, Spend the money and fix it, and off to the next.