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 Post subject: e-fan install questions (240)
PostPosted: Fri Jan 12, 2007 4:15 pm 
I can take anything apart.
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Joined: Tue Jan 10, 2006 2:54 pm
Posts: 379
Location: Calgary
Hey Everyone,

A belated happy new year to everybody. Hope '07 is a great year for you all... :D

We ran into a "little" problem with the special aluminum viscous clutch fan I was using on my '81 240 (B23E). :cry: The fan is toast so I'm now thinking very seriously of converting that car over to an electric fan. I've found lots of different articles on t-bricks and brickboard on how to do it but I thought I'd check with the group and see if anyone had any particular recommendations for how to do it or what type of temp sensor/switch I should use and how I should wire it all up.

Should I go with the GM fan that almost bolts right in or is there some other type of fan that people are using more now ?

I'm thinking that I'd like to go with an adjustable temp switch so I could set the kick-in and shut-off temps to whatever seems to work best. Any recommendations on what type of sensor/switch to get and where to get one ?

If possible, I'd like to have the fan set up so that if necessary it can keep running for a while after the engine's been shut off. The trick will be finding an appropriate controller that will shut the fan off after a set period of time. My 940 has that type of a system in it. Does anyone know what type(s) of cars I might be able to get such a controller from ?

I've heard that SAABs have good 50 Amp e-fan relays in them so I might try to snag a relay from an old SAAB.

Comments ? Suggestions ?

Thanks,

Roj

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 Post subject:
PostPosted: Mon Feb 12, 2007 12:04 am 
Bone stock

Joined: Sun Feb 04, 2007 11:59 pm
Posts: 18
Location: Edmonton
I went with the GM fan, as seen here. I just used little "L" brackets I made from aluminum for the top, to put the stock screws in the stock locations, and a couple small tabs at the bottom so it'd stay in place. Really easy, and I just used a 70amp relay I found on an old Audi coupe at the junkyard. Big orange one. I have it wired right now so that the fan draws right off the battery, and the relay comes on with the ignition, with a manual override, so I can turn it off when the car's warming up.

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