Crack In Clutch Fan

[Taso84]

Hi there,

Was removing my radiator today when i noticed from under the car that the clutch fan has a crack in it, on the part that sits around bearing on the motor. See pic:

As you can see, the crack is about 1 cm in size.

Obviously the smart thing to do would be to replace it, but i'm curious if anybody's had a similar issue or a fan fail on them due to cracking.

Also, if anybody's got a spare one lying around that would be great.

Thanks

[bloodzkull]

just put a bigish thermo on it with a proper shroud.

electric fans get a lot of bad rep but personally i reckon most of this is due the people running them unshrouded and not big enough fans.

for instance i've been looking at fans for my hilux. the one on it was a 16 inch flowing 1000cfm (i think) yet 2x 10inch fans wouldn't flow even close to that.

kinda the same argument such as a single 4 inch pipe will flow more than 2x 2inch pipes by a significant amount, but i get the shits arguing with people about this.

[babyskyline]

On my r33 i found a crack about the same size as yours. Went for drive that night to get something and the fan split and went into the radiator.

So instead of just having to buy a new clutch fan i also had to buy a new radiator.

Get it replaced as soon as you can as you never know when they will fail.

[Taso84]

Where abouts did you get a new one from? I had to trim the blades on the stock one for the intercooler pipe so wouldnt mind buying an aftermarket one that fits on without needing to be trimmed.

Anybody with a Hybrid FMIC know of an aftermarket brand that doesnt require trimming of the blades?

[08yannch]

mine has cracks. yes more than one and it still runs good one day may put in a high performance steel one with no clutch or go thermo

[RB30-POWER]

they fatigue after a while.

almost all r31 and vl have this fault as well that i have seen.

i would just double check that the viscous fan centre is working properly, not locked up all the time as this will put extra load onto the blades.

[The Dan]

just put a bigish thermo on it with a proper shroud.

electric fans get a lot of bad rep but personally i reckon most of this is due the people running them unshrouded and not big enough fans.

for instance i've been looking at fans for my hilux. the one on it was a 16 inch flowing 1000cfm (i think) yet 2x 10inch fans wouldn't flow even close to that.

kinda the same argument such as a single 4 inch pipe will flow more than 2x 2inch pipes by a significant amount, but i get the shits arguing with people about this.

A 16inch SPAL fan from PWR will flow 3000cfm. I don't know of any that flow higher but they are good value if you are having cooling issues and they can't be fixed by the normal maintenance procedures.

[76GTR]

I have seen this on all nissan vehicles that have a bit of age. It's must be from heat and stress they are only plastic , my car is the same and the vl i had many years ago was the same.

Cheers

Clynton