Jamming a clutch fan

[warauto]

I was speaking to someone, while discussing the electric fan upgrade he said why dont i just jam my clutch fan.

Has anyone heard of this, he said its been done for years where you open up the clutch fan and jam it, so the more you rev the faster the fan spins.....

Anyone...............Flame on!!!!!!!

[soreballz]

LOL.
Clearly, you've never driving a 240 with a seized clutch fan. When you get past around 3k rpms, the belt starts screaming and begging for its life.

[warauto]

No mine has never siezed on me, so what you are saying that this will torture my clutch fan to death

[soreballz]

It will torture the belt and the water pump.

[warauto]

Ok, it sounded very efficient to me how he explained it. he said that hey did this to a couple of his Toyota Hiace buses, and it ran like this for years, it had a whistling sound but cooled the engine remarkebly. Thats what he said...

[Bigsyke]

WTF florida ftl again?

Dont touch it

[chigga311]

THATS RETARDED!!!!

They do it in the islands cause they don't have $$ or means to get new parts all the time.

But for performance its horrible!!!!

[warauto]

Nobody said anything about new parts. It was simply a need to know thread.
Curiousity fellow zilvianian.

[warauto]

WTF florida ftl again?

Dont touch it
Nobody said i was gonna touch the fan....read before you post

[murda-c]

dude the stock clutch fan in working condition blows more air the most aftermarket fans anyway.

With it seized your car just sounds like a ups truck, loses horsepower, potentially damages your water pump, and eats belts.

[warauto]

dude the stock clutch fan in working condition blows more air the most aftermarket fans anyway.

With it seized your car just sounds like a ups truck, loses horsepower, potentially damages your water pump, and eats belts.

When you put it that way, I understand the cons, i only wanted the knowledge guys, not to try anything new.

[Bigsyke]

Nobody said i was gonna touch the fan....read before you post


I dont have to read, I just know things, im not from florida.

What happens if the belt snaps? there is nothing to cool your cedar oak engine mounts, am I right?

[warauto]

I dont have to read, I just know things, im not from florida.

What happens if the belt snaps? there is nothing to cool your cedar oak engine mounts, am I right?

They are actually made of mangrove sap, Thankyou very much, don't get it twisted.

[surreybc]

my fan clutch is working fine after 18 yrs.


Thermal Fan Clutch Varies the fan speed with temperature of the air behind the radiator.
Engaged (high speed) operation provides maximum cooling.
Disengaged (low speed) operation provides fuel savings and noise reduction.
Greater life expectancy than a non-thermal clutch.
Briefly engaged at cold start-up.
Engages at about 170° radiator air temperature, (about 30° lower than coolant temperature).
The air temperature coming through the radiator is sensed by the bi-metal thermal spring on the front of the thermal fan clutch. It expands and contracts with the change in air temperature operating a valve inside of the clutch. When cold, the silicone drive fluid is pumped from the working area to the reservoir. When hot, the valve opens allowing fluid from the reservoir to be transferred to the working area thereby increasing the fan speed. The clutch disengages as the air temperature decreases, closing the valve and allowing the silicone fluid to be pumped back into the reservoir.
A thermal fan clutch is engaged on a cold startup because the fluid drains into the working area when the engine is shut off. The fan clutch will slow down shortly after startup as a result of a pumping action produced by a difference in speed between the shaft and the body of the clutch.
Most models are designed to duplicate original equipment performance. Some Chevrolet/GMC truck models are specifically designed to engage at lower temperatures than the original equipment parts that they replace.

[warauto]

my fan clutch is working fine after 18 yrs.


Thermal Fan Clutch Varies the fan speed with temperature of the air behind the radiator.
Engaged (high speed) operation provides maximum cooling.
Disengaged (low speed) operation provides fuel savings and noise reduction.
Greater life expectancy than a non-thermal clutch.
Briefly engaged at cold start-up.
Engages at about 170° radiator air temperature, (about 30° lower than coolant temperature).
The air temperature coming through the radiator is sensed by the bi-metal thermal spring on the front of the thermal fan clutch. It expands and contracts with the change in air temperature operating a valve inside of the clutch. When cold, the silicone drive fluid is pumped from the working area to the reservoir. When hot, the valve opens allowing fluid from the reservoir to be transferred to the working area thereby increasing the fan speed. The clutch disengages as the air temperature decreases, closing the valve and allowing the silicone fluid to be pumped back into the reservoir.
A thermal fan clutch is engaged on a cold startup because the fluid drains into the working area when the engine is shut off. The fan clutch will slow down shortly after startup as a result of a pumping action produced by a difference in speed between the shaft and the body of the clutch.
Most models are designed to duplicate original equipment performance. Some Chevrolet/GMC truck models are specifically designed to engage at lower temperatures than the original equipment parts that they replace.


Good write up dude, i don't understand much of it but after further research i should....Thanks

[ryguy]

These fucking threads lately.

The point of an electric fan is to take the load off the engine when the fan isn't needed. You don't need the fan blowing when you're cruising at highway speed.

[soreballz]

^Clutch fans don't put a strain on the engine when they're not needed unless they're seized.

[ryguy]

I remember discussing this page on either this site or another site and it made sense to me at the time.
The Myth Of The Electric Fan (http://www.aaroncake.net/rx-7/efanmyth.htm)
But an elder member of the community had an argument for why it's wrong. I cant remember, it's late, hopefully somebody will chime in.

I'm just saying, the last thing you want is for the clutch fan to be engaged at all times. A moving car moves more air through the radiator than the fan.

[soreballz]

I'm just saying, the last thing you want is for the clutch fan to be engaged at all times. A moving car moves more air through the radiator than the fan.
What you just said is the entire point of a clutch fan. The fan has a thermal clutch in it that allows it to disengage when its not needed, such as at high rpms, or on the highway.

I can rev my KA to 6k rpms and stop the fan with my hand. Trust me, its not putting a strain on the engine. lol



(DISCLAIMER: DO NOT ATTEMPT WHAT I JUST DESCRIBED. IF THE ENGINE AND FAN ARE COLD, OR YOUR FAN IS SEIZED, OR THE FAN DOESN'T SPIN AS FREELY AS IT SHOULD, YOU WILL HURT YOURSELF.)

[surreybc]

These fucking threads lately.

The point of an electric fan is to take the load off the engine when the fan isn't needed. You don't need the fan blowing when you're cruising at highway speed.

You need to write the nissan engineers and let them know.

[ryguy]

You need to write the nissan engineers and let them know.

Neither of my S13s ever had any kind of fan whatsoever, except the A/C fan. It's not even necessary unless you are a. racing or b. in a lot of stop and go traffic in the middle of July. I know that remark is going to get me flamed, but three years without a single overheating incident is evidence enough for me. An electric fan can be switched on or off or adjusted to come on less frequently than a clutch fan.

[DALAZ_68]

I was speaking to someone, while discussing the electric fan upgrade he said why dont i just jam my clutch fan.

Has anyone heard of this, he said its been done for years where you open up the clutch fan and jam it, so the more you rev the faster the fan spins.....

Anyone...............Flame on!!!!!!!

LOL.
Clearly, you've never driving a 240 with a seized clutch fan. When you get past around 3k rpms, the belt starts screaming and begging for its life.

No mine has never siezed on me, so what you are saying that this will torture my clutch fan to death

It will torture the belt and the water pump.

Pretty much should have ended this thread with that...

Nobody said anything about new parts. It was simply a need to know thread.
Curiousity fellow zilvianian.

it makes no sense...maybe you should have researched info prior to making this obviously pointless thread

dude the stock clutch fan in working condition blows more air the most aftermarket fans anyway.

With it seized your car just sounds like a ups truck, loses horsepower, potentially damages your water pump, and eats belts.

pretty much sums up why not to do what the OP's Friend ''tipped'' him about

I dont have to read, I just know things, im not from florida.

What happens if the belt snaps? there is nothing to cool your cedar oak engine mounts, am I right?

LOLOLOLOL