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07-18-2015, 12:06 PM
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#1
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Junior Member
Join Date: Jul 2015
Posts: 6
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Hydraulic engine fan converted to electric fan
Has anybody ever said screw it to the over complicated and prone to failure hydralic engine fan and converted to an electric fan setup? I have a 2001 Dynasty with the 350hp Cummins. Im not liking the cost of replacement parts and I have determined I can convert to electric for less than replacing any part in that system. If you have done it please share what you did!
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07-18-2015, 12:34 PM
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#2
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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I don't think an electric fan can move enough air to work very well.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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07-18-2015, 12:45 PM
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#3
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Senior Member
Tiffin Owners Club
Join Date: Jan 2011
Location: Summerfield Fl.
Posts: 300
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Quote:
Originally Posted by Mr_D
I don't think an electric fan can move enough air to work very well.
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I agree with Mr D it would take one monster electric fan but if you can find out cfm airflow on the hydraulic fan you can see if an electric fan is even made. The only problem I have had with mine was a front seal leak I replaced with a 15$ kit from a dealer .(But it was not easy those parts are heavy).
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Tom Homestead Fl.
2017 Tiffen Pheaton
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07-18-2015, 07:43 PM
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#4
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Senior Member
Join Date: May 2004
Location: cayucos, ca
Posts: 1,299
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If you convert to electric you will need some type of controller to adjust fan speed. You will also need some heavy duty on off switch. Also it will take a a very large electric motor that uses a lot of amperage. Etc, etc, etc.
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Ross Starkenburg
2017 Newmar Dutch Star 4369. Spartan chassis w/full disc brakes. 2015 Jeep Grand Cherokee toad
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07-18-2015, 07:58 PM
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#5
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Senior Member
Monaco Owners Club
Join Date: Nov 2010
Location: The Emerald Coast
Posts: 1,759
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__________________
Jim and Jennie, Cats=Bittles and Potter, 2000 Dynasty 350 ISC
2013 Silverado 4x4 Towed with R1200GS in bed.
PROV23:4 Do not wear yourself out to get rich; have the wisdom to show restraint.
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07-18-2015, 08:32 PM
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#6
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Senior Member
Monaco Owners Club
Join Date: Mar 2013
Location: Bellingham, WA
Posts: 272
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following this thread, would love to make this change and simplify things abit
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Tom and Gail McKeon
2007 Beaver Contessa 43' Tag CAT C9
2010 Jeep Wrangler,2015 HD "Ultra Limited"on Hydralift
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07-18-2015, 09:11 PM
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#7
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Senior Member
Join Date: Dec 2014
Posts: 1,666
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Replacing the mechanical or hydraulic fan with an electric model seems like a good idea, but I wonder if there is enough electrical power available to run the fan with the engine at idle. How much power does the alternator make at 500-700 engine RPMs? Is there a way to increase idle speed when the fan needs more power, like cars do for the air conditioning compressor?
Mike
2000 Holiday Rambler Endeavor 40PBD
Freghtliner XC, CAT 3126B
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Mike
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07-18-2015, 09:24 PM
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#8
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Senior Member
Tiffin Owners Club
Join Date: Sep 2012
Location: Ambler, PA
Posts: 2,853
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Quote:
Originally Posted by Coma
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Those would not work on a side radiator (which I assume that the OP has) as they will not move enough air at speed. They need the assist of ram air (read front mount radiator) to be effective at higher speeds and loads.
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Larry & Cheryl Oscar, Louie, Ranger & Henry (our Springers)
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07-19-2015, 05:13 AM
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#9
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Senior Member
Monaco Owners Club
Join Date: Nov 2010
Location: The Emerald Coast
Posts: 1,759
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Quote:
Originally Posted by PushedAround
Those would not work on a side radiator (which I assume that the OP has) as they will not move enough air at speed. They need the assist of ram air (read front mount radiator) to be effective at higher speeds and loads.
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I saw that, too. Perhaps if you size the 400 HP at under 80k? Dunno.
Commercial Fleet Export, Inc., New &Used Commercial Vehicles, Tools, Parts, Accessories, Utility, Cranes, Lifts, Buckets, Trucks, Trailers, Tankers, Buses, Container Handlers, Export.
These folks talk about Hydraulic fans up to 50k cfm, at least they would be of current manufacture.
The other factor , as mentioned, is power. 70 Amps at 12V. I don't know if there is that kind of margin left. You might have to run a second alternator.
__________________
Jim and Jennie, Cats=Bittles and Potter, 2000 Dynasty 350 ISC
2013 Silverado 4x4 Towed with R1200GS in bed.
PROV23:4 Do not wear yourself out to get rich; have the wisdom to show restraint.
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07-19-2015, 05:26 AM
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#10
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Senior Member
Join Date: Jul 2011
Location: CAISTOR CENTRE
Posts: 785
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All I do know is that when the hydraulic fan works well it really works well. Save yourself the grief and repair your hydraulic fans.
Joe
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