[DeTomaso] Just whe I thought it was safe to go back in the water...

[Christopher Kimball]

Thanks for the suggestions; here are a few more facts:

The fans all spin freely.

I have two relays, brand new, from Dakota Digital utilizing their digital 
temperature on/off circuit connected to a sensor I purchased from DD which 
is located on the block.

I'm sure when I piggy-backed the third fan on one of the other fans it was 
too much for the fuse on that circuit.

However, why would both fuses be blown (which is what I found)?  Shouldn't 
it only have blown the fuse to which the piggy-backed fans were connected?  
This makes me think maybe the other fuse was already blown and I didn't know 
it, and that's why I had an overheating problem.

When I hook up one of the fans through the relay, I can feel the fuse 
getting hot, although the fan appears to be running fine.  This pattern is 
the same for each of the three fans, actually.

Should I start using 40 amp fuses for the fans?

Thanks for your help.

Sincerely,

Chris


>From: Mad Dog Antenucci <teampantera at yahoo.com>
>To: Christopher Kimball <chrisvkimball at msn.com>
>Subject: Re: [DeTomaso] Just whe I thought it was safe to go back in the 
>water...
>Date: Sat, 7 Jul 2007 17:16:23 -0700 (PDT)
>
>Hey Chris
>
>    I think its  one or both of the following;
>
>
>   1. an electrical problem..original fuse box and original wiring and 
>connectors I bet with no relay kit?
>
>   2. a stock or undersized or not functioning radiator problem....2 fans 
>maybe..... but 3? No way.
>
>   Not an answer but somethings for you to think about
>
>   Dawg
>
>
>
>
>Christopher Kimball <chrisvkimball at msn.com> wrote:
>   When I took my '72 to the mechanic's on Thursday to have them put in a 
>third
>sucker fan, they informed me they were swamped and couldn't get it done by
>the weekend. They gave me the fan and the little plastic things that hold
>it against the radiator and said I should have "no problem" installing it
>myself. Like a fool, I believed them...
>
>I installed the fan after removing the two top bolts on the radiator so I
>could move it forward slightly to allow me to slip the fan down and mount 
>it
>to the radiator. I hooked the power wires in parallel with the driver's
>side fan, which is wired with heavy-duty wire to the Dakota Digital fan
>relay system I installed some time ago.
>
>Once it was all hooked up I took it for a test drive.
>
>Upon returning home, not only did I discover none of the three fans were
>working, and the two fuses leading to them (30 amp) were blown (the fuse
>holder for one was melted into a mass of plastic), and to top it all off, 
>it
>appears I broke the radiator while installing the stupid fan! Coolant is
>dripping from the passenger side lower front corner where it appears the
>lower part of the radiator has separated from the main part.
>
>I am bummed.
>
>Does anyone have any idea why the fan relay can't support two fans? Do I
>have to buy a third relay to get three fans to work?
>
>Sincerely,
>
>
>Chris
>
>
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>Mad Dawg Antenucci
>Team Pantera Racing
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