Check your Clutch Fan!!!

[landtank]

I'm having great success with my tweaked Blue fan clutch. I have a long highway haul at the end of this week with a trailer in tow. By then I'll probably have everything worked out on how to get your blue clutches working properly.

As of right now I still don't get a roar out of it, but it keeps the temps down where they are supposed to be and does this extremely well. I think the Blue clutch controls how much drive is transfered to the fan in a much smoother fashion than the Hayden and is ment to stay just ahead of the engine's needs instead of cycling on and off with a roar.

With mine and with other's, I'm convinced that it has been adjusted so close to where it needs to come on that there is no margin for error and we are seeing some error as the clutches are coming on a little late and causing high operating temps.

I wouldn't throw out that blue clutch just yet.

 

[Gauge]

Gauge, are both those shots with the modded gauge? Also, it looks like it did not help your oil pressure much.

Yes both pictures are with the modded gauge. Before the mod, my temp gauge would sit slightly below the middle, after the mod, the gauge became much more sensitive.

I agree that oil pressure did not increase much at idle, but in my opinion it is still better than before. I will take any improvement I can get.

Everyone seems to have installed the "blue" clutch fan. Can I assume that this is the OEM clutch fan? I installed a Hayden which I purchased at Pep Boys. It is actually smaller than the OEM clutch fan. When it "roars", within several seconds I can actually notice the temp gauge needle go down.

 

[landtank]

the "blue" clutch fan is the newer one offered by Toyota.

 

[landtank]

Gauge, I just noticed something on those pics that I also saw on my truck once the temps where under control, a higher idle rpm. Right after the clutch tweak the engine idled at 800RPMs and after 6 or 7 drive cycles it's back down to where your's is at. Did you notice anything like that?

 

[zipastro]

OK I am ready to rpl my clutch fan as it is orig with 170K miles....What do I buy??????
OEM is junk and there is lots of aftermarket crap you just cant trust?????????