Re: electric fan pulley size

[Don Dulmage <big-d@xxxxxxxxxxxx>]

Smaller fan pulley  makes pump and fan turn faster. Yes that is the intent. 
Usually doesnt take much to cure the problem. 4 SPEED? What is that? No 
Intruth I must admit I never thought ofthatbecause all the nes I have worked 
on have autos. In fact i am trying to remeber the last 4 speed i was 
invloved with.  But the point s good and one I hadnt thought of. Probably 
better to go with the thermostat there. if one mush have an electric. I dont 
like electrics on the street myself . In a race car it seems ok .  That is 
just me. Everyone should feel free to do as they wish. I do!
Don
----- Original Message ----- 
From: "Dave" <civiltech@xxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Monday, September 22, 2008 10:21 AM
Subject: RE: electric fan pulley size


> 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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>
> '62 to '65 Mopar Clubhouse Discussion Guidelines:
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----
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.