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Re: Fan speed resistor [Re: TheBigDog] #899062 08/08/08 09:54 AM
Joined: Dec 2004
Posts: 400
TheBigDog Offline OP
Mudrunner
I pulled the blower motor, no specs on that.....then decided to check the fuse panel, found a 20 amp circuit breaker for the fan, will work on 20 amp.

Thanks for the help! <img src="/forums/images/graemlins/kewl.gif" alt="" />


Excuses are for losers.
From the Off-Road World
Re: Fan speed resistor [Re: TheBigDog] #899063 08/09/08 04:02 AM
Joined: May 2006
Posts: 457
D
Davepet Offline
Mudrunner
20 Amps x 12 volts = 240 watts

However, the actual current is probably less, if you have a ammeter try measuring the current at full speed & also at each speed that still works. Then just multiply by 12 (or better yet by youe actual running voltage & get a resistor that can handle that many watts.

Re: Fan speed resistor [Re: TheBigDog] #899064 08/09/08 08:20 AM
Joined: May 2006
Posts: 457
D
Davepet Offline
Mudrunner
One of these might do the job:

http://www.mpja.com/products.asp?dept=161

At 240 watts they will probably not burn out, but 2 ohms may not be enough resistance for slow speed.

Dave

Re: Fan speed resistor [Re: Davepet] #899065 08/09/08 10:19 AM
Joined: Oct 2003
Posts: 75
cam01 Offline
Getting the Wheeling Fever
I soldered a pair of the ceramic resistors from a 1/10th scale R/C car in parallel across the low speed terminals on my 1st gen. years ago when I was young and broke. I drove it another 18 months or so and never had a problem with it. I have no idea of the resistance or wattage rating of those bad boys though.


88 V6 4Runner, 3.4 swap, SAS, front E locker, rear EZ locker, dual cases 2.28/4.7, 63" Chev rears, rears up front etc.
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