Author Topic: Fan Mod Delete (Read 12620 times)

1991 E30 M42 · « **Reply #15 on:** April 25, 2007, 10:37:49 PM »

I checked the switch again, I took the switch out of the radiator and heated it with a heat gun to see if it worked, and it did, but I had to get it really hot. So I checked continuity again and watched it. as the switch got cooler, the resistance increased. So the switch isn't either on or off, it's more like the coolant temp sensor, where the hotter it gets, the core current it allows to flow. My issue is that not enough current is flowing to the relay to close the fan circuit at the temperature that it is supposed to. Maybe it has something to do with there being an old relay and it takes more current than normal to trigger it. Has anyone had this problem?

Tonyb · « **Reply #16 on:** April 25, 2007, 10:53:23 PM »

Quote from: ak96ss;24525

Just a fan, or did you get a shrouded fan?

I got a 16" s blade puller fan. (kinda looks like the aux fan, but mounts behind the radiator) No shrould by the way.

jajou318 · « **Reply #17 on:** April 25, 2007, 10:54:44 PM »

sweet $69 only?! that's awesome

do you have it hooked up to your temp switch so it turns on automatically

ak96ss · « **Reply #18 on:** April 26, 2007, 07:51:00 AM »

Any thoughts on CFM? The 16" fans I am looking at range from 1.3k to 3k CFM, and from $66.00 to over $300!

I can't imagine we would need the big dog...

asubimmer · « **Reply #19 on:** April 26, 2007, 10:58:33 AM »

mine is like 2750 cfms's iirc, 16" obv.

dino245 · « **Reply #20 on:** April 26, 2007, 11:01:23 AM »

I removed the fan clutch and rewired the A/C fan so that it works on the lower of the two heat ranges of the thermoswitch. Realy easy and cost nothing but time. I also removed the A/C condensor and made a simple bracket to support the A/C aux fan. Works like a charm even in the summer.

Tonyb · « **Reply #21 on:** April 26, 2007, 08:02:37 PM »

Quote from: jajou318;24537

sweet $69 only?! that's awesome

do you have it hooked up to your temp switch so it turns on automatically

I wired mine right to the fuse block so it turns on with the motor. In the winter I can just pull out the fuse to keep it off. The fan can be heard from the font of the car, but not the inside.

Jtuner · « **Reply #22 on:** April 27, 2007, 09:15:52 AM »

What the best idea when going about this then? Install a temp switch in to the coolant flow somewhere, and whammy? or use one of the stock temp switches? or should I just redneck out and throw a toggle switch on er? LOL

m44power · « **Reply #23 on:** April 28, 2007, 11:11:25 AM »

just install the OEM fan sensor in the right side of your radiator and use the OEM fan of the >95 E36's

ecorrea21 · « **Reply #24 on:** May 01, 2007, 08:55:07 PM »

Any pic's of a sensor installed in the radiator? By the way my fan clutch just free spins, you can hold it and rev the motor typical of these fan clutches my m52 fan clutch did the same thing. I ready to go electric fan.

jetteman · « **Reply #25 on:** May 01, 2007, 09:50:52 PM »

Quote

Any pic's of a sensor installed in the radiator? By the way my fan clutch just free spins, you can hold it and rev the motor typical of these fan clutches my m52 fan clutch did the same thing. I ready to go electric fan.
Last edited by ecorrea21 : Today at 09:57 PM.

this is fine the fan clutch is a viscous unit that uses a fluid that locks the fan clutch to the shaft when the temp reaches a certain point.

if i use the lower temp side of the fan switch at what temp does it come on with the pre 95 E36 temp switch?

zav3n · « **Reply #26 on:** May 02, 2007, 12:48:58 AM »

Quote from: ecorrea21;24979

Any pic's of a sensor installed in the radiator? By the way my fan clutch just free spins, you can hold it and rev the motor typical of these fan clutches my m52 fan clutch did the same thing. I ready to go electric fan.

ya anyone have a pic of a setup i would really like to see how diffrent ppl set their's up..

m44power · « **Reply #27 on:** May 03, 2007, 12:17:21 PM »

this is an m3 radiator but its the same sensor in the same place for all e30's and e36's radiator

dude8383 · « **Reply #28 on:** November 22, 2007, 05:56:36 PM »

Quote from: 1991 E30 M42;24530

I checked the switch again, I took the switch out of the radiator and heated it with a heat gun to see if it worked, and it did, but I had to get it really hot. So I checked continuity again and watched it. as the switch got cooler, the resistance increased. So the switch isn't either on or off, it's more like the coolant temp sensor, where the hotter it gets, the core current it allows to flow. My issue is that not enough current is flowing to the relay to close the fan circuit at the temperature that it is supposed to. Maybe it has something to do with there being an old relay and it takes more current than normal to trigger it. Has anyone had this problem?

You know, I might be having the same issue.

Did you ever resolve this?

JiXer · « **Reply #29 on:** December 14, 2007, 12:58:41 AM »

7-10 HP???

Shananigans!

I've done it. Won't do it again.

Wast of time and money.

Save your cash to put toward a chip and a flywheel.

J.