RE: electric fan pulley size

[Jeff Adams <ledman_70@xxxxxxxxxxx>]

I just run my electric fan on a $15 adjustable thermostat(from Autozone) 
that turns the fan on when the temp gets to whatever you set it at. 
Works fine.

Dave Harms wrote:
> 
> Don,
> Would that be 1/2" bigger or smaller? Not sure if the thought is to make 
> it
> spin a little faster (this seems to me to be the idea) or spin just a 
> little
> slower. Just want to be sure with the intent. 
> 
> Also, does your relay setup work with a 4 speed vehicle?
> 
> Thanks.
> 
> Dave Harms
>  
> 
> 
> -----Original Message-----
> From: Don Dulmage [mailto:big-d@xxxxxxxxxxxx] 
> Sent: Sunday, September 21, 2008 12:18 PM
> To: 1962to1965mopars@xxxxxxxxxx
> Subject: fan electric
> 
> 
> 
>  I use a relay when i do it. The brake lights are only the trigger for 
>  the
> relay, not the power source. It works very well too since when moving 
> the
> fan is not needed since airflow is good. Just when stopped or creeping 
> in
> traffic is the fan needed and so whenever the brakes are applied the 
> relay
> triggers and the fan runs cooling the rad. 
> BTW more often than not a simple change in fan pulley diameter will make 
> the
> car run cooler . About 1'2 inch. i have fixed several of our cars of 
> this
> period by doing that. Usually the fan pulley from the poly is just 
> right.
> Last one i cured was Bill Parsons  black 64 with the OR style engine in 
> it.
> Many of you met Bill at Carlise recently so i heard by the grapevine so 
> you
> know the car. it was creep heating, if you will in traffic, even in 
> downtown
> Picton which is a tiny town. A simple change of fan pulley to one from a 
> 318
> poly which was about 1/2 to 3/4 smaller sped the water pump and fan up 
> to
> the point where it is nonexistant as a problem. . I did the math for  
> Bill
> but i didnt keep it. Seemed to be though it was over a hundred RPM  
> maybe
> two or more it worked out to on the pump speed. I remember he was 
> surprised
> since al lthe "experts " said "that wont make no difference" but it does 
> and
> it did. Same for my car as well BTW. .
> [Non-text portions of this message have been removed]
> 
> 
> ----
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> 
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> 
> 



Jeff Adams
64 Polara


----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html.