gmctd wrote:
Screw? What adjusting screw? That is a coil, but not a spring - it is a bimetal strip that lengthens when temperature rises rotating the valve that redirects the silicone viscous fluid into the turbine, increasing hydraulic hookup, and voila! we got hurricane force wind - cut-in temperature usually be lowered by tweaking that coiled strip
Yes, I misspoke: It just looks like a spring so I called it that, but is indeed a bimetallic coiled strip similar to the one in the wall thermostat. I have seen some coils in the past that allow you to adjust their rotation relative to the valve or switch they are affecting. This is because they are not always particularly accurate and depending upon the device, need to be calibrated. This one looks like it is just pressed into place & perhaps glued...its hard to tell with the tiny mirror.
In order to tweak the coil, one would first have to know which direction it turned the valve when heated. Thus an experiment would require heating it up to watch which direction it coiled - which is dependent upon which side of the strip is occupied by the more expansive metal. By the looks of it in the tiny mirror, if the outer diameter has the more expansive metal then the valve will turn counterclockwise when heated.
So, are you thinking of just bending the coil a bit so the valve engages sooner? That would work if there is nothing fundamentally wrong with the internal workings of the valve. But the 06 blows more air even when idling cool than mine does hot. I've never heard any roar from my radiator under any conditions.
But here is something else to ponder:
I have a witness!! Blacksmoke (Nice rig! Nice Roof lights! Nice SEGR!) was kind enough to brave the driveway and stand in the pouring rain with me this evening to compare all 3 rigs side by side. Of course, since it was dark, cool and rainy nothing overheated. His 05 has the identical amount of mechanical fan volume as mine. However, both are significantly LESS than the 06 which has never overheated.[/u] Blacksmoke did mention some overheating problems in the past. However, since he lives in the valley and drives mostly level areas, his rig is not stressed daily like mine is on the driveway so he may rarely see the same conditions. Blacksmoke has agreed to try the driveway again when (if) our normal August weather returns. The idea would be to follow each other up the driveway with the exact same conditions and see what happens. My guess: His will overheat too.
Something is definitely different between the fans.....but the serial number stamped on the front is the same on all. I wouldn't think they would make a change in the product form, fit or function from one year to the next and not change the serial number for tracking, so I'm guessing it is a quality defect that was present in some 05 models but not noticed very often because most people don't stress their cars. At least that is my own theory at this point.
Login
Register
FAQ
Search
.At least those air hammer clutch fan tool kit can be used on almost every newer vehicle.
)
For giggles, what are the odometer readings on the 3 crd's 
And what are the build dates? My 06 was made in January of 06 and sounds like a tornado at idel and my high mpg figure was 25 once.