Eletric Fan
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Eletric Fan
- Thread starter cj77
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gr8dain
Full Time Jeeper
A lot of people use the Ford Contour e-fans. I bought a new one made for a Contour for my 84 CJ8 with a AMC 258 i6 / 4.2l . Made by Dorman. Dual fan set up.
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- '85 CJ-7, 258/4.2L 6cyl. Bought new in 1985. Full cage, Warn 8274 winch, Ford 9" rear, front/rear Detroit Lockers w/4:88 R&P. T-5 tranny and 4:1 t'case. 33X12.50-15 BFG/AT, MSD ign, on board air---
They are noisy and you may well need to install a higher AMP output alternator.
May I ask, why you want to change over?
LG
May I ask, why you want to change over?
LG
GatorBate
Senior Jeeper
Lumpy is right about the alternator. You will need to change out your 63 amp 10si for at least a 12si. Or the first night out you will have to make a choice between head lights or a cool engine.
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- '85 CJ-7, 258/4.2L 6cyl. Bought new in 1985. Full cage, Warn 8274 winch, Ford 9" rear, front/rear Detroit Lockers w/4:88 R&P. T-5 tranny and 4:1 t'case. 33X12.50-15 BFG/AT, MSD ign, on board air---
GB-Don't think the Cj's came with a 63AMP alt.
Mine sure didn't, and it had the trailer tow pkg and such.
UPDATE-CK'n my notes, I'm wrong!
LG
Mine sure didn't, and it had the trailer tow pkg and such.
UPDATE-CK'n my notes, I'm wrong!
LG
Last edited:
GatorBate
Senior Jeeper
May not. That's what mine had when I bought it and it could not keep up with the cooling fan, heater, headlights, and ignition. I think the ford fans pull about 25 amps on high.
Posi
Always Off-Roading Jeeper
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The standard CJ alternator is rated at 42 amps, the heavy duty optional alternator is rated at 55, 63, 70, and 85 amps. Like Pete mentioned most come 63 amps. LG you have the tow package with heavy duty alternator.
- Posts
- 14,790
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- Location
- Springfield, Missouri-U.S.A. Earth
- Vehicle(s)
- '85 CJ-7, 258/4.2L 6cyl. Bought new in 1985. Full cage, Warn 8274 winch, Ford 9" rear, front/rear Detroit Lockers w/4:88 R&P. T-5 tranny and 4:1 t'case. 33X12.50-15 BFG/AT, MSD ign, on board air---
OK-CK'd my notes. Had the 70 amp as OEM. Replaced it about 12 yrs ago with one from NAPA, when the bearing went bad. The NAPA receipt sez 85 AMPS on it. Sorry to say-The ink on the receipt is faded so bad, that I can't see the PN#.
My SWAG-The 85 amp alternator was for the A/C equiped CJ models.
LG
My SWAG-The 85 amp alternator was for the A/C equiped CJ models.
LG
Turbogus
Old Time Jeeper
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- '78 CJ 5 Renegade (Black Betty) Motor AMC 360, T150 trans, 20 tc, Dana 30 front and Dana 44 rear w/posi
'96 GMC K1500 Suburban (Big Blue Basterd) fully loaded with over $10k in options
Hey LG, I recently reread an article in an old JP magazine and he was mentioning while stock alternators seem to have bearings on one end the Mean Green has bearing support on both ends of the shaft. I've not looked into this myself since the GM 10si is working fine for me right now.
Ford Contour or Mercury Mystique use the same type of dual fan so this'll broaden your horizons on finding one from the auto wrecking yards.
Some general wisdom regarding wirning, batteries and alternators can be found here; BASIC WIRING 101, Getting You Started! - JeepForum.com
another page that make for a good read; Proper Grounding locations for starter, alternator and dedicated ground buss - JeepForum.com
Since I've installed mine I've never looked back, I've got some wirning diagrams for this fan setup if you need, give me a holler.
Ford Contour or Mercury Mystique use the same type of dual fan so this'll broaden your horizons on finding one from the auto wrecking yards.
Some general wisdom regarding wirning, batteries and alternators can be found here; BASIC WIRING 101, Getting You Started! - JeepForum.com
another page that make for a good read; Proper Grounding locations for starter, alternator and dedicated ground buss - JeepForum.com
Since I've installed mine I've never looked back, I've got some wirning diagrams for this fan setup if you need, give me a holler.