Home » Public Forums » GMCnet » [GMCnet] Caddy 500 Fan
| [GMCnet] Caddy 500 Fan [message #127040] |
Sun, 22 May 2011 21:52  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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G'day,
I just posted three pictures of a Caddy fan I got off eBay to fit to the
Caddy 500 I've got in Aus.
http://www.gmcmhphotos.com/photos/showphoto.php?photo=39218
I bought it because I had read that Caddy's run hot. My engine will be setup
to run on AutoGas (60% LPG/ 40% Butane) and it will run even hotter.
IIRC the auction noted it was removed from an ambulance or was it a hearse?
At any rate as you can see it has MONSTROUS blades at extreme angles and
they are flex blades, however, it appears that it came from GM!
I am loathe to run it as is with just the spacer as I am SURE it will put a
serious dent in mileage.
What's the consensus re running it with a clutch?
If I can make it fit that is!
Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Caddy 500 Fan [message #127049 is a reply to message #127040] |
Sun, 22 May 2011 22:17  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Rob,
I wouldn't devote a lot of research time nor funds investment in a clutch
for that monster. 'Cause I'm betting after you run it (with just the
spacer) for about 5 miles, you'll be more than ready to remove it to protect
your ear drums. :-)
Yes, Cad500's do run hotter than Olds 455's. Just comparing the water pump
inlets to the heads of each would tell you to expect that. That, plus the
overheat warning switch at the rear of the block, set at 265*F, indicates to
me that the designers planned it that way. Just put a 15 psi cap on your AL
radiator and don't worry about a normal temperature of over 200*F.
JMHO,
Ken H.
On Sun, May 22, 2011 at 10:52 PM, Rob Mueller <robmueller@iinet.net.au>wrote:
> G'day,
>
> I just posted three pictures of a Caddy fan I got off eBay to fit to the
> Caddy 500 I've got in Aus.
>
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=39218
>
> I bought it because I had read that Caddy's run hot. My engine will be
> setup
> to run on AutoGas (60% LPG/ 40% Butane) and it will run even hotter.
>
> IIRC the auction noted it was removed from an ambulance or was it a hearse?
>
> At any rate as you can see it has MONSTROUS blades at extreme angles and
> they are flex blades, however, it appears that it came from GM!
>
> I am loathe to run it as is with just the spacer as I am SURE it will put a
> serious dent in mileage.
>
> What's the consensus re running it with a clutch?
>
> If I can make it fit that is!
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Caddy 500 Fan [message #127051 is a reply to message #127049] |
Sun, 22 May 2011 22:34 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
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Ken,
Good point, sitting in an ambulance or hearse five feet behind it WOULD be a
lot quieter than sitting on top of it! ;-) Plus if you were in either an
ambulance or hearse you wouldn't be complaining about noise! ;-) ;-)
I'll pack it up and take it with me and put it on a shelf in my workshop -
JIC! - Just In Case!
Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Ken Henderson
Sent: Sunday, May 22, 2011 10:17 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Caddy 500 Fan
Rob,
I wouldn't devote a lot of research time nor funds investment in a clutch
for that monster. 'Cause I'm betting after you run it (with just the
spacer) for about 5 miles, you'll be more than ready to remove it to protect
your ear drums. :-)
Yes, Cad500's do run hotter than Olds 455's. Just comparing the water pump
inlets to the heads of each would tell you to expect that. That, plus the
overheat warning switch at the rear of the block, set at 265*F, indicates to
me that the designers planned it that way. Just put a 15 psi cap on your AL
radiator and don't worry about a normal temperature of over 200*F.
JMHO,
Ken H.
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Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Caddy 500 Fan [message #127063 is a reply to message #127040] |
Mon, 23 May 2011 07:17 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Rob,
There's one better. Same dia, same pitch, it has the extra added benefit
of serrations on the trailing edge of the fan for noise reduction. I have
an extra one if you want it.
On Sun, May 22, 2011 at 7:52 PM, Rob Mueller <robmueller@iinet.net.au>wrote:
> G'day,
>
> I just posted three pictures of a Caddy fan I got off eBay to fit to the
> Caddy 500 I've got in Aus.
>
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=39218
>
> I bought it because I had read that Caddy's run hot. My engine will be
> setup
> to run on AutoGas (60% LPG/ 40% Butane) and it will run even hotter.
>
> IIRC the auction noted it was removed from an ambulance or was it a hearse?
>
> At any rate as you can see it has MONSTROUS blades at extreme angles and
> they are flex blades, however, it appears that it came from GM!
>
> I am loathe to run it as is with just the spacer as I am SURE it will put a
> serious dent in mileage.
>
> What's the consensus re running it with a clutch?
>
> If I can make it fit that is!
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Steve Ferguson
Sierra Vista, AZ
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| Re: [GMCnet] Caddy 500 Fan [message #127205 is a reply to message #127051] |
Mon, 23 May 2011 20:27 |
Kosier
Messages: 834
Registered: February 2008
Karma: 1
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Senior Member |
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Rob,
I believe that's a 75 commercial chassis fan.(hearse, etc,) They
had the same fan with a clutch
on the 75 Eldorado. It's on that gold-painted one in the GM
Museum. I've looked for one, but
never had the luck to find one. It looks like it's possible to
modify yours for a clutch.
Gary Kosier
77EII & 77PB
Newark, Ohio
----- Original Message -----
From: "Rob Mueller" <robmueller@iinet.net.au>
To: <gmclist@temp.gmcnet.org>
Sent: Sunday, May 22, 2011 11:34 PM
Subject: Re: [GMCnet] Caddy 500 Fan
> Ken,
>
> Good point, sitting in an ambulance or hearse five feet behind
> it WOULD be a
> lot quieter than sitting on top of it! ;-) Plus if you were in
> either an
> ambulance or hearse you wouldn't be complaining about noise!
> ;-) ;-)
>
> I'll pack it up and take it with me and put it on a shelf in my
> workshop -
> JIC! - Just In Case!
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: gmclist-bounces@temp.gmcnet.org
> [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Ken
> Henderson
> Sent: Sunday, May 22, 2011 10:17 PM
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Caddy 500 Fan
>
> Rob,
>
> I wouldn't devote a lot of research time nor funds investment
> in a clutch
> for that monster. 'Cause I'm betting after you run it (with
> just the
> spacer) for about 5 miles, you'll be more than ready to remove
> it to protect
> your ear drums. :-)
>
> Yes, Cad500's do run hotter than Olds 455's. Just comparing
> the water pump
> inlets to the heads of each would tell you to expect that.
> That, plus the
> overheat warning switch at the rear of the block, set at 265*F,
> indicates to
> me that the designers planned it that way. Just put a 15 psi
> cap on your AL
> radiator and don't worry about a normal temperature of over
> 200*F.
>
> JMHO,
>
> Ken H.
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Caddy 500 Fan [message #127233 is a reply to message #127056] |
Mon, 23 May 2011 21:56 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Gary,
You correct about not having enough pulll when you need them.
I realize there are many makes out there, so as the ground hog said,"Gofer it"
On Sun, May 22, 2011 at 8:54 PM, Gary Berry <duallycc@gmail.com> wrote:
> Â One of the problems with flex-fans is just when you need them the
> most they flatten out and stop sucking air. They are great for idling
> around, but put any revs into them and they stop working. Say you hit
> a slope or a long grade and you need to drop into second gear. The
> revs come up and the fan flattens out just when you need the cooling.
> Anyway, just a thought. I had a clutch fan freeze up one time. Mileage
> went to pot and the noise was pretty loud.
> --
> Gary and Diana Berry
> 73 CL Stretch in Wa.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Caddy 500 Fan [message #127252 is a reply to message #127233] |
Tue, 24 May 2011 00:32 |
|
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Gentlemen,
I agree with you regarding the aftermarket flex fans.
However, YOU AIN'T SEEN THIS BABY! It ain't no aftermarket gimmick! It came
from GM!
Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Jim Kanomata
Sent: Monday, May 23, 2011 9:56 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Caddy 500 Fan
Gary,
You correct about not having enough pulll when you need them.
I realize there are many makes out there, so as the ground hog said,"Gofer
it"
On Sun, May 22, 2011 at 8:54 PM, Gary Berry <duallycc@gmail.com> wrote:
> One of the problems with flex-fans is just when you need them the
> most they flatten out and stop sucking air. They are great for idling
> around, but put any revs into them and they stop working. Say you hit
> a slope or a long grade and you need to drop into second gear. The
> revs come up and the fan flattens out just when you need the cooling.
> Anyway, just a thought. I had a clutch fan freeze up one time. Mileage
> went to pot and the noise was pretty loud.
> --
> Gary and Diana Berry
> 73 CL Stretch in Wa.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
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http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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