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electric fan
https://slantsix.org/forum/viewtopic.php?t=26928		 Page 1 of 1
Author:  Valleyant [ Wed Jan 30, 2008 9:50 am ]
Post subject:  electric fan
Hi,
What is a good aftermarket electric fan to use on my '72 Valiant S6 with 22" Radiator? I want to change out the original fan. Thanks, nico
Author:  emsvitil [ Wed Jan 30, 2008 4:04 pm ]
Post subject: 
The general rule is get the biggest fan that will fit........

I think the 'Summit' ones work fine, and are less expensive than a name brand (and are probably made by a name brand anyway).


My concern is that the fan uses 5-10amps, and a 70s alternator may not have enough output to run the fan and everything else.......
Author:  Pierre [ Wed Jan 30, 2008 6:27 pm ]
Post subject: 
Watch the depth too - its a tight fit. Maybe two smaller fans away from the center to clear the water pump.
Author:  argentina-slantsixer [ Wed Jan 30, 2008 6:36 pm ]
Post subject: 
My setup was 2 smaller fans from Renault 18, GTX or Fuego 2 dr. Those was japanese motors, quality stuff, extra thin motors, I ran a 80 amp alternator and a 80 amp battery and I never had any electric issue whatsoever, running MSD ignition, big sound system, good headlights and 14 dash cluster bulbs (enhanced instruments panel lightening) and so on. I think they were 14" OD each impeller (they were installed in front of rad instead of between rad and motor) Temp sender was 90°/82° (that's Celsius) and thermostat was 72°C in summer, 80°C in winter. I had it wired in such a way that I could leave it always on (traffic jam) always off (highway, very cold winter temps) or auto (sender controlled). I used a 70 amp relay (way overkill but I like my wiring to be on the extra safe side)
Author:  Jopapa [ Thu Jan 31, 2008 4:37 am ]
Post subject: 
Quote:
My setup was 2 smaller fans from Renault 18, GTX or Fuego 2 dr. Those was japanese motors, quality stuff, extra thin motors, I ran a 80 amp alternator and a 80 amp battery and I never had any electric issue whatsoever, running MSD ignition, big sound system, good headlights and 14 dash cluster bulbs (enhanced instruments panel lightening) and so on. I think they were 14" OD each impeller (they were installed in front of rad instead of between rad and motor) Temp sender was 90°/82° (that's Celsius) and thermostat was 72°C in summer, 80°C in winter. I had it wired in such a way that I could leave it always on (traffic jam) always off (highway, very cold winter temps) or auto (sender controlled). I used a 70 amp relay (way overkill but I like my wiring to be on the extra safe side)
Got any pictures of your fan install? Sounds like the best way to go that I've seen so far for a slant. Where in the radiator did you place the sender, and how did you mount up the fan assembly?

Got any kind of diagram for how you wired it? I have one that I did up a couple years ago and I'd like to see if your design is similar to mine at all (I never was very happy with how convoluted mine ended up).
Author:  KBB_of_TMC [ Thu Jan 31, 2008 9:44 am ]
Post subject: 
Whatever fan you use, make sure the fan is securely fastened to the shaft. One of our TMC club members had his fan come off the shaft and through his radiator on the way to a show when the nut worked loose.
Author:  argentina-slantsixer [ Thu Jan 31, 2008 3:00 pm ]
Post subject: 
Quote:
Quote:
My setup was 2 smaller fans from Renault 18, GTX or Fuego 2 dr. Those was japanese motors, quality stuff, extra thin motors, I ran a 80 amp alternator and a 80 amp battery and I never had any electric issue whatsoever, running MSD ignition, big sound system, good headlights and 14 dash cluster bulbs (enhanced instruments panel lightening) and so on. I think they were 14" OD each impeller (they were installed in front of rad instead of between rad and motor) Temp sender was 90°/82° (that's Celsius) and thermostat was 72°C in summer, 80°C in winter. I had it wired in such a way that I could leave it always on (traffic jam) always off (highway, very cold winter temps) or auto (sender controlled). I used a 70 amp relay (way overkill but I like my wiring to be on the extra safe side)
Got any pictures of your fan install? Sounds like the best way to go that I've seen so far for a slant. Where in the radiator did you place the sender, and how did you mount up the fan assembly?

Got any kind of diagram for how you wired it? I have one that I did up a couple years ago and I'd like to see if your design is similar to mine at all (I never was very happy with how convoluted mine ended up).
No, I haven't any pictures left after my 2006 computer crash, but I think I can get the pictures for you. If you look closer on the rad mount crossmember you'll notice 2 holes on one side, that's where I mounted the legs and drilled the opposite side to match. I used some sort of rubber bushed mount to prevent vibrations, and wired a la old american cars, positive side short (the shortest) and long ground wires. Temp sender was located at the water neck right above the tstat. I'll work on pictures and diagrams and get back to you soon. It was really a good setup IMHO and worked very very nice.
Author:  Jopapa [ Wed Feb 06, 2008 6:55 am ]
Post subject: 
Quote:
Whatever fan you use, make sure the fan is securely fastened to the shaft. One of our TMC club members had his fan come off the shaft and through his radiator on the way to a show when the nut worked loose.
:shock:

Note to self: Secure nut with thread locker.......or JB Weld
Author:  440_Magnum [ Wed Feb 06, 2008 2:17 pm ]
Post subject: 
Quote:
Got any pictures of your fan install? Sounds like the best way to go that I've seen so far for a slant. Where in the radiator did you place the sender, and how did you mount up the fan assembly?

I'm using two Hayden fans as pushers in front of the A/C conensor on my Polara. They're not used at all for engine cooling- they only turn on when the A/C is on, so there's no temp sending unit at all. I'd never do this with a stock finned-case Chrysler alternator. When I first went to this setup I was running an old Mopar copcar 100-A alternator, but I've now replaced it with a 120a Nippondenso from an early 90s Ram truck. They mount to the AC condensor itself (or to the radiator) using supplied clips that go through the fins and clamp down on foam cushions that pinch between the fan and radiator. Sounds cheesy, but I've run a fan on another vehicle for, oh, well over 100k miles with no problem. The Hayden fans are reversible so they can be pushers or pullers.

I don't have a good picture, but you can see the tops of both fans (one's older and dirtier than the other...), the Nippondenso alternator, and the Classic Auto Air compressor mounting kit in this image:

http://lonestar.texas.net/~sglacker/MMC ... ished2.jpg
Author:  Ineptnewb [ Wed Feb 06, 2008 11:06 pm ]
Post subject: 
My 74 vj had power steering installed before I came across it - try indicating and turning from a standstill and it's revving so low it stalls 50/50 - have the stereo on and no chance :D works fine with the idle speed up - but now it's idling almost at cruise speed - time to rebuild the alt i guess :roll: another on the list
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