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View Full Version : sr20 fan clutch help


lilrusty
08-27-2009, 09:23 AM
so whether the fan clutch works or not the fan will still spin. but how do i determine whether the fan clutch still works?? im not overheating or anything but just want to make sure it still works. id always trust it over e fans anyways. i was always told that ka24 fan clutches do not work on sr20 motors but was never told why. any halp??

Propaganda
08-27-2009, 12:12 PM
You can tell if your clutch fan is seized by having the engine off and turning the fan by hand. If you cannot, you need to replace it.

I don't see what is wrong with using a KA fan clutch. I use one as do others

lilrusty
08-27-2009, 02:17 PM
after comparing both fan clutches (sr and ka) they both look very identical. they might even be the same part. the fan blades i know are different

lok
08-27-2009, 02:23 PM
The ka fan will not fit the sr.

it is not spaced enough off of the water pump and will hit the crank pulley.

$nicklefritz
08-28-2009, 08:26 AM
when its cold it should be hard to move when its hot should freely btw test with belt off

vladimir240
08-29-2009, 11:44 PM
i tried putting the KA clutch fan on my sr cause it looked beefier then the sr clutch fan. well it went on good, but when throttle is applied the fan will hit the belts, cause the blades, beaing plastic do angle under speed which in turn cause them to nick on the belt

Teambadrun
08-31-2009, 10:30 AM
If you want greatest cooling
use Skyline Clutch fans
they fit SR20

Rb20 clutch fan has 1 extra blade then SR20
RB25 clutch fan has 2 extra blades then SR20

GTR R32 has 1 extra
GTR R33 has 2 extra

:)

i am using a R33 Rb25 one on my track car
and R32 RB20 one on my street car

they are fantastic.