| Electronic Fan Clutch for 6.5's [message #330026] |
Thu, 15 March 2018 16:39  |
Hal StClair
Messages: 971
Registered: March 2013
Location: Rio Rancho NM
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Not that I need another project BUT a guys got to do what a guys got to do. Anyway, I've been looking for a way to install an electronic fan clutch on the 6.5 Diesel for a while, actually before I started the swap in the first place. I haven't found anyone that's accomplished the task, probably because the 6.5's have lost favor with the Duramax coming on line and overshadowing the old IDI motor. Too bad the dimensions of the Duramax won't work well for our applications but that's a story for another time.
I located an electronic clutch that was used on a medium duty 6.6 Duramax for three years that used the same mounting thread size as the screw on thermo fan clutch used on the late 6.5's. The fan used on this truck is 23" and about 2" wider than my current fan but shouldn't be too difficult to trim to size if needed. I'd love to find a 21" 10 blade reverse rotation blade for it but sourcing fans seems to be very difficult for some reason. The fan height spacing is within a half inch so the fan shroud should work fine. The mechanics of the swap seem to be pretty well ironed out, just the electronics need to be worked through.
The GM fan used PWM for control and a hall effect sensor to determine rpm of the fan, all controlled by the PCM. Unfortunately, the PCM used by the 6.5 doesn't have the capability to interface with the fan drive so a stand alone system will be needed. Hayden sells a PWM fan controller that looks like it may work but the jury is still out as of now. I'm curious what control the GMC Sprinter clutch kit uses. Any thoughts on this from some of you talented folks would certainly be appreciated.
If it can be made to work as designed, this will be a nice addition for the Diesel folks here.
Hal
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
[Updated on: Thu, 15 March 2018 16:40] Report message to a moderator |
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