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Topic: Installed new electric fan N water pump....HELP PL

in Forum: C3 Cooling and Heating Systems

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Installed new electric fan N water pump....HELP PL (1/9)
9/26/11 4:34pm

ace

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Ocala, FL - USA

Vette(s):
1975 coupe, Green, 4speed, T-top, 383 stroked, Hooker side pipes.

Joined: 9/14/2002
Posts: 72

Was hoping someone can help me get my new electric fan N water pump wired to actually turn on N work? I followed directions but not very well. Neither one would turn on Censored

I have relays for both and I'm so confused

..... Thanks for all your help in advance Beer

Its a 1975 with a 383 coupe.

Thanks ACE

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Re: Installed new electric fan N water pump....HEL (2/9)
9/26/11 6:16pm

Crimson Ghost
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Vette(s):
1968 convertible

Joined: 3/3/2010
Posts: 94

I recently installed electric fans - love them by the way.

Not sure what's going on with yours. What is is? I am not sure on the pump - is the fan a toggle or a thermo switch? If its a thermo where did you put it? Try taking the wires from the thermo and grounding them -- the fans should turn on. If they don't turn on with the ground than you have a bad motor. The key is to start eliminating potential problems so that you narrow in on the issue.

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Re: Installed new electric fan N water pump....HEL (3/9)
9/26/11 8:34pm

ace

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Ocala, FL - USA

Vette(s):
1975 coupe, Green, 4speed, T-top, 383 stroked, Hooker side pipes.

Joined: 9/14/2002
Posts: 72

Thanks Ghost,

Its a Jeggs fan 16"and a ProForm water pump. I'm not sure where to run wire for battery, I had it hooked to fuse box possibly BAt tab or ing tab. Confused

I ran ground to frame, grey wire to thermo sensor in manifold w 195 thermostat. I'm pretty sure it's due to how I had wires run. I also have relays for both and circuit breakers 30 amp for each. I'm just lost, It took me a while to hook up my new gauges also.............

Thanks for all your help Beer

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Re: Installed new electric fan N water pump....HEL (4/9)
9/27/11 7:18am

lukesvette

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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.

Joined: 5/18/2004
Posts: 6812

Wiring for an electric fan will usually be done similar. Here's how mine was run:

Heavy ground wire from fan to frame.

Heavy hot wire from fan to heavy input wire on relay.

Heave output wire from relay to Batt (I ran mine to the starter lug)

14 Ga sensor wire to sensor in intake manifold (sensor supplied with relay)

14 Ga ignition wire run to ignition source from fuse panel.

Good Luck!! Big smile

Paul

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Re: Installed new electric fan N water pump....HEL (5/9)
9/27/11 3:56pm

DaveM

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Flanders, NJ - USA

Vette(s):
1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.

Joined: 1/27/2004
Posts: 2552

Do you have AC? If you do then you may want a manual switch to turn on the fan when the AC is on. If you're in traffic with the AC on and no fan to cool the condenser than your AC system will build up too much pressure and cause problems.

Dave

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Dave's '82

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Re: Installed new electric fan N water pump....HEL (6/9)
9/27/11 11:31pm

ace

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Ocala, FL - USA

Vette(s):
1975 coupe, Green, 4speed, T-top, 383 stroked, Hooker side pipes.

Joined: 9/14/2002
Posts: 72

Thanks guys...I will try this when I get to work on it next.... I don't have AC so it should be a little easier. Thanks again...

ACE

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Re: Installed new electric fan N water pump....HEL (7/9)
10/2/11 6:56pm

ace

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Ocala, FL - USA

Vette(s):
1975 coupe, Green, 4speed, T-top, 383 stroked, Hooker side pipes.

Joined: 9/14/2002
Posts: 72

I got it working......Thanks guys for all the help Handshake

Now I just need to put a different thermostat in. I put a 195 temp and fan turns on around 210, will put a 180 or 185 in and should be perfect. Thanks again.

ACE

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Re: Installed new electric fan N water pump....HELP PL (8/9)
11/5/11 7:22pm

ace

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Ocala, FL - USA

Vette(s):
1975 coupe, Green, 4speed, T-top, 383 stroked, Hooker side pipes.

Joined: 9/14/2002
Posts: 72

A pic of water pump, thanjs for the help gang !

/member_uploads/1601_1700/1663/2CDB4_P9290191.JPG

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Re: Installed new electric fan N water pump....HELP PL (9/9)
11/6/11 12:33am

rraider1
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1165

Keep in mind it is the setting of the sensor you installed that turns on the fan 210 sounds ok I am not sure other guys with fans could let you know what theirs are set at. a 195 thermostat just means the water temp needs to get to 195degrees before it will open and allow the coolant to flow through the engine.

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