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| Electric Fans [message #284452] |
Mon, 10 August 2015 04:20  |
jturbo
Messages: 76
Registered: August 2013
Location: Socal
Karma: 1
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Looking for info on electric fans.
I have been looking into this for awhile and a possible suitable fans are the following
1. 1998 Lincoln mark VIII (supposedly 4500 CFM)
2. 2010 F150 Fan set (CFM no Idea)
Has anyone tried either of these or another solution?
1978 Royal 403
1977 Birchaven 455
1977 Kingsley 455
All under Upgrading and restoration
Rosemead California
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| Re: [GMCnet] Electric Fans [message #284458 is a reply to message #284452] |
Mon, 10 August 2015 08:04  |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Electric fans have been tried with limited success. Read Here:
http://gmcmotorhome.info/engine.html#electric
JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCGL Tech Editor
GMCMHI
78 GMC Buskirk 30’ Stretch
1975 GMC Avion (Under Reconstruction)
Michigan
> On Aug 10, 2015, at 5:20 AM, john wrote:
>
> Looking for info on electric fans.
>
> I have been looking into this for awhile and a possible suitable fans are the following
>
> 1. 1998 Lincoln mark VIII (supposedly 4500 CFM)
> 2. 2010 F150 Fan set (CFM no Idea)
>
> Has anyone tried either of these or another solution?
>
>
> --
> 1978 Royal 403
> 1977 Birchaven 455
> 1977 Kingsley 455
>
> All under Upgrading and restoration
>
> Rosemead California
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Electric Fans [message #284465 is a reply to message #284458] |
Mon, 10 August 2015 09:24 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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On electric fans, my old GMC's P.O. had installed a Marine Axial Blower, used a as bilge blower, in the rear of the engine compartment. It had an elaborate control system consisting of relays and temperature sensors to turn it on and turn it off, and disable it in case of engine fire.
Anyone still doing this modification? I removed the sensor system and just installed a direct switch to control the blower. When engaged, you could see the temp gauge move down.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: Electric Fans [message #284472 is a reply to message #284452] |
Mon, 10 August 2015 10:11 |
Chris Tyler
Messages: 458
Registered: September 2013
Location: Odessa FL
Karma: 7
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I have used the lincoln fan in other applications with success. It pulls a lot of amps but moves a lot of air. I am considering using one in my 68 mustang now as I have another one
On my GMC the PO placed a Black magic fan onside the rad, a pancake motor 12" on the outside, retained the fan clutch assy and no shroud. The setup does not work well except for cooling when not running
I have a two peice shroud and intend to modify the Black magic mount to retain it, and eliminate the outer fan
76 Glenbrook
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| Re: [GMCnet] Electric Fans [message #284481 is a reply to message #284465] |
Mon, 10 August 2015 10:44 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Tom,
That was a modification to draw heat out of the engine compartment after shutting off the engine and helping cool down. It was a project I think that was first presented in GMC Motorhome Marketplace in the 1990s. Still looking for the magazine.
JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCGL Tech Editor
GMCMHI
78 GMC Buskirk 30’ Stretch
1975 GMC Avion (Under Reconstruction)
Michigan
> On Aug 10, 2015, at 10:24 AM, Thomas Phipps wrote:
>
> On electric fans, my old GMC's P.O. had installed a Marine Axial Blower, used a as bilge blower, in the rear of the engine compartment. It had an
> elaborate control system consisting of relays and temperature sensors to turn it on and turn it off, and disable it in case of engine fire.
> Anyone still doing this modification? I removed the sensor system and just installed a direct switch to control the blower. When engaged, you could
> see the temp gauge move down.
> Tom, MS II
> --
> 1975 GMC Avion
> KA4CSG
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Electric Fans [message #284485 is a reply to message #284481] |
Mon, 10 August 2015 11:02 |
bdub
Messages: 1578
Registered: February 2004
Location: Central Texas
Karma: 5
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http://bdub.net/publications/index/gmcmm/gmcmm_hyperlinked-index.html
bdub
www.bdub.net/GMCLinks.html
On Aug 10, 2015 10:44 AM, "John Wright" wrote:
> Tom,
> That was a modification to draw heat out of the engine compartment after
> shutting off the engine and helping cool down. It was a project I think
> that was first presented in GMC Motorhome Marketplace in the 1990s. Still
> looking for the magazine.
>
> JR Wright
> GMC Great Laker MHC
> GMC Eastern States
> GMCGL Tech Editor
> GMCMHI
> 78 GMC Buskirk 30’ Stretch
> 1975 GMC Avion (Under Reconstruction)
> Michigan
>
>> On Aug 10, 2015, at 10:24 AM, Thomas Phipps wrote:
>>
>> On electric fans, my old GMC's P.O. had installed a Marine Axial
> Blower, used a as bilge blower, in the rear of the engine compartment. It
> had an
>> elaborate control system consisting of relays and temperature sensors to
> turn it on and turn it off, and disable it in case of engine fire.
>> Anyone still doing this modification? I removed the sensor system and
> just installed a direct switch to control the blower. When engaged, you
> could
>> see the temp gauge move down.
>> Tom, MS II
>> --
>> 1975 GMC Avion
>> KA4CSG
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
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bdub
'76 Palm Beach/Central Texas
www.bdub.net
www.gmcmhphotos.com
www.gmcmotorhomemarketplace.com
www.gmcmhregistry.com
www.facebook.com/groups/classicgmcmotorhomes
www.facebook.com/groups/gmcmm
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| Re: [GMCnet] Electric Fans [message #284504 is a reply to message #284485] |
Mon, 10 August 2015 13:54 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Nice index, I have the Alphabetical article index that I use. I am not sure if it is available anymore.
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
> On Aug 10, 2015, at 12:02 PM, Billy Massey wrote:
>
> http://bdub.net/publications/index/gmcmm/gmcmm_hyperlinked-index.html
>
> bdub
> www.bdub.net/GMCLinks.html
> On Aug 10, 2015 10:44 AM, "John Wright" wrote:
>
>> Tom,
>> That was a modification to draw heat out of the engine compartment after
>> shutting off the engine and helping cool down. It was a project I think
>> that was first presented in GMC Motorhome Marketplace in the 1990s. Still
>> looking for the magazine.
>>
>> JR Wright
>> GMC Great Laker MHC
>> GMC Eastern States
>> GMCGL Tech Editor
>> GMCMHI
>> 78 GMC Buskirk 30’ Stretch
>> 1975 GMC Avion (Under Reconstruction)
>> Michigan
>>
>>> On Aug 10, 2015, at 10:24 AM, Thomas Phipps wrote:
>>>
>>> On electric fans, my old GMC's P.O. had installed a Marine Axial
>> Blower, used a as bilge blower, in the rear of the engine compartment. It
>> had an
>>> elaborate control system consisting of relays and temperature sensors to
>> turn it on and turn it off, and disable it in case of engine fire.
>>> Anyone still doing this modification? I removed the sensor system and
>> just installed a direct switch to control the blower. When engaged, you
>> could
>>> see the temp gauge move down.
>>> Tom, MS II
>>> --
>>> 1975 GMC Avion
>>> KA4CSG
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Electric Fans [message #284506 is a reply to message #284504] |
Mon, 10 August 2015 14:07 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Sorry, you do have it listed on your website.
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
> On Aug 10, 2015, at 2:54 PM, John Wright wrote:
>
> Nice index, I have the Alphabetical article index that I use. I am not sure if it is available anymore.
>
> JR Wright
> 78 Buskirk Stretch
> 75 Avion
> Michigan
>
>> On Aug 10, 2015, at 12:02 PM, Billy Massey wrote:
>>
>> http://bdub.net/publications/index/gmcmm/gmcmm_hyperlinked-index.html
>>
>> bdub
>> www.bdub.net/GMCLinks.html
>> On Aug 10, 2015 10:44 AM, "John Wright" wrote:
>>
>>> Tom,
>>> That was a modification to draw heat out of the engine compartment after
>>> shutting off the engine and helping cool down. It was a project I think
>>> that was first presented in GMC Motorhome Marketplace in the 1990s. Still
>>> looking for the magazine.
>>>
>>> JR Wright
>>> GMC Great Laker MHC
>>> GMC Eastern States
>>> GMCGL Tech Editor
>>> GMCMHI
>>> 78 GMC Buskirk 30’ Stretch
>>> 1975 GMC Avion (Under Reconstruction)
>>> Michigan
>>>
>>>> On Aug 10, 2015, at 10:24 AM, Thomas Phipps wrote:
>>>>
>>>> On electric fans, my old GMC's P.O. had installed a Marine Axial
>>> Blower, used a as bilge blower, in the rear of the engine compartment. It
>>> had an
>>>> elaborate control system consisting of relays and temperature sensors to
>>> turn it on and turn it off, and disable it in case of engine fire.
>>>> Anyone still doing this modification? I removed the sensor system and
>>> just installed a direct switch to control the blower. When engaged, you
>>> could
>>>> see the temp gauge move down.
>>>> Tom, MS II
>>>> --
>>>> 1975 GMC Avion
>>>> KA4CSG
>>>>
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: Electric Fans [message #284549 is a reply to message #284491] |
Tue, 11 August 2015 07:49 |
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thesmith
Messages: 589
Registered: February 2015
Location: Cary, NC
Karma: 6
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Senior Member |
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Current draw wouldn't be any much if any worse than in every modern vehicle on the road apart from the House load. If a lincoln can power that fan its hard to see why a GMC couldn't cope just fine.
AC compressor? what Alternator load does that add?
on the subject of generating electic power in cars, My father had a blower Bentley just after the war (ww2) when farmers were one of the few people who could get petrol in
the UK (it was still rationed). One night the regulator for the dynamo failed and the lights all got brighter then popped one by one until he had only one of the massive headlights left to get him home.
Bank manager (half the money to buy the farm was borrowed) gave him so much grief about the extravigance of the car that he sold it after a couple of years.....pity as these cars now sell for a million dollars......I teased him about that and he said that even if he had kept it then he would have had to sell it a half a dozen other times in bad years......
Now if he had just got a few Spitfires and put them in one of the barns beside the Bently.......
Pete
A Hamilto wrote on Mon, 10 August 2015 12:59jturbo wrote on Mon, 10 August 2015 04:20Looking for info on electric fans.
I have been looking into this for awhile and a possible suitable fans are the following
1. 1998 Lincoln mark VIII (supposedly 4500 CFM)
2. 2010 F150 Fan set (CFM no Idea)
Has anyone tried either of these or another solution? Check the rating on your alternator. You will almost certainly have to upgrade it to something more than 100A to run electric fans AND everything else that could be pulling current at the same time (headlights, AC compressor, heater/defrost fan on high, isolator charging the house battery, etc.)
Cary, NC
1978 Center Kitchen Royale.
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| Re: Electric Fans [message #284552 is a reply to message #284452] |
Tue, 11 August 2015 08:53 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Most modern cars/suvs have 140-160 or higher amp alternators driven by serpentine belts with an automatic tensioner. Even some of the 4 cylinder vehicles are double our 80A.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Electric Fans [message #284564 is a reply to message #284549] |
Tue, 11 August 2015 09:54 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Pete,
Don't count on ANY alternator continuously producing its "rated output".
Treat that more as a maximum and de-rate it about 50% for continuous use.
So I would expect the GMC's 80A alternator to fail regularly if producing
40A+ continuously. Even the 80A should not be demanded (and probably
wouldn't be supplied) for longer than necessary to provide an initial boost
to a near-dead battery bank -- probably 5-10 minutes.
JMHO
Your Dad's Bently is in the category of the '39 BMW 328 which my Dad
wouldn't let me buy for $135 in 1954 when I was a junior in high school in
Wurzburg, Germany. I think we ALL have some such regret. :-)
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, etc., etc.
www.gmcwipersetc.com
On Tue, Aug 11, 2015 at 8:49 AM, Pete Smith wrote:
> Current draw wouldn't be any much if any worse than in every modern
> vehicle on the road apart from the House load. If a lincoln can power that
> fan its
> hard to see why a GMC couldn't cope just fine.
> AC compressor? what Alternator load does that add?
>
>
on the subject of generating electic power in cars, My father had a blower
> Bentley just after the war (ww2) when farmers were one of the few people
> who could get petrol in
> the UK (it was still rationed). One night the regulator for the dynamo
> failed and the lights all got brighter then popped one by one until he had
> only one of the massive headlights left to get him home.
>
> Bank manager (half the money to buy the farm was borrowed) gave him so
> much grief about the extravigance of the car that he sold it after a couple
> of
> years.....pity as these cars now sell for a million dollars......I teased
> him about that and he said that even if he had kept it then he would have
> had to sell it a half a dozen other times in bad years......
> Now if he had just got a few Spitfires and put them in one of the barns
> beside the Bently.......
>
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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] Electric Fans [message #284590 is a reply to message #284570] |
Tue, 11 August 2015 15:32 |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
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Senior Member |
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Some of those 160 units are event water cooled. The demands on the belt are significant.
Dolph Santorine
DE N8JPC
Wheeling, West Virginia
1977 ex-Palm Beach TZE167V100820
1-ton, Sullybuilt Bags, Reaction Arms, 3.70 LSD, Manny Transmission, EV-6010,
> On Aug 11, 2015, at 11:49 AM, Pete Smith wrote:
>
> JohnL455 wrote on Tue, 11 August 2015 09:53
>> Most modern cars/suvs have 140-160 or higher amp alternators driven by serpentine belts with an automatic tensioner. Even some of the 4 cylinder
>> vehicles are double our 80A.
>
>
>
> I stand corrected....mea culpa ..Its forever since I had to replace an alternator....I think the last one was a 45A on my classic 850cc Mini!
>
> Pete
>
>
>
> --
> Cary, NC
>
> No Coach yet but decided it will be wet bath with Sully or 4 bag system.
> perhaps a 1978 Kingsley....
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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