police Fan clutch

swtstang · 06-15-2001, 05:33 PM

Do any of the police guys know anything about the fan clutch on their stang? MIne is soooo loud I can't even hear the engine at high rpm's. It is always locked in unlike my 87 lx that locks in at a certain temp. THis big bad johny has got to be sucking up a lot of hp. Do your cars sound like they are getting ready for take off at 3500 rpm????

dinomite · 06-15-2001, 11:34 PM

Thats bad, it takes horsepower, but also puts excessive wear on the water pump bearing. Get a new fan clutch, its easy to install, takes about 15 minutes.

jimberg · 06-15-2001, 11:54 PM

The police fan clutch is supposed to work just like the stock fan clutch. If it was just meant to spin all of the time, it wouldn't be called a clutch. Replace that sucker, it must be defective.

------------------
351W 89 Mustang GT Convertible

red82gt · 06-16-2001, 01:12 AM

It's gotta be toast, I've got the police fan clutch and it behaves like a regular one.

------------------
GT-40 heads (ported, polished, + milled), B303 cam, 1.7rr's, JE pistons, Offy intake, Carter AFB 625cfm carb, Flowtech 1 5/8" shortys, Flowtech X-pipe, MAC Flowpath exhaust, MAC pulleys, 373's, subframes, Eibachs+Tokicos, B&M ripper, FMS Clutch, Zoom Quadrant+cable, 17" CSA Ultra rims, 235/45ZR17 Yokohama AVS S4's, MSD 6A ignition+coil, FMS 9mm wires, Carbed, Naturally Aspirated, and Nasty!

swtstang · 06-16-2001, 11:22 AM

I think I am going to get a Lincoln Mark VIII electric fan. Anybody know how hard of an install that is? It is supposed to pull about 3500cfm, and it's only $100!!!!

06-16-2001, 06:34 PM

Where do you get the Mark VIII electric fan from for $100 dollars? I will get one for sure if they are that cheap.

06-17-2001, 02:22 PM

RayScopes · 06-17-2001, 03:12 PM

The police fan clutch is supposed to disengage the fan at a lower engine speed than the stock clutch. If I remember right, this engine speed is 1800 RPM for the police clutch to disengage.

------------------
'88 Mustang GT-GT40 Iron Head Engine, Kenne Bell SC/FMU, AOD
www.geocities.com/rayscopes/RaysStang.html

Mr 5 0 · 06-17-2001, 03:18 PM

I have the 'police-duty' fan and it works great. Engages at a lower RPM and draws less HP as well as cooling better.

Recommended as a replacement for the stocker.

90dpscoupe · 06-18-2001, 12:24 AM

I've had bad luck with the police fan, probaly high mileage, but mine was loud, powerrobbing, and finally broke off, and puncured my radiator, i will only use an electric fan for now on, the night it broke i was down the street thank god....but it felt like it gained 10-15 hp

.

------------------
90 lx coupe: 175k miles, steeda water pump pully, hurst shifter, Mac cold air fenderwell, accel supercoil, ADS chip, aluminum D/S, Black magic fan, 3.27grs.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 98.17
Best 60': 1.9607

next mods: subframes, mac h-pipe

swtstang · 06-18-2001, 11:55 AM

You can pick up the lincoln fan from www.houstonperformance.com for $109 w/ shipping. Let me know how the install is.

swtstang · 06-18-2001, 11:57 AM

You can pick up the lincoln fan from www.houstonperformance.com for $109 w/ shipping. Let me know how the install is.

06-15-2001, 05:33 PM	#1
swtstang Registered Member Join Date: Apr 2001 Location: stockton, ca usa Posts: 160	police Fan clutch Do any of the police guys know anything about the fan clutch on their stang? MIne is soooo loud I can't even hear the engine at high rpm's. It is always locked in unlike my 87 lx that locks in at a certain temp. THis big bad johny has got to be sucking up a lot of hp. Do your cars sound like they are getting ready for take off at 3500 rpm????

06-17-2001, 02:22 PM	#7
88GT5.013.02 Guest Posts: n/a	ttt

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06-15-2001, 11:34 PM	#2
dinomite The Dude Join Date: Feb 2001 Location: Arlington, VA Posts: 1,262	Thats bad, it takes horsepower, but also puts excessive wear on the water pump bearing. Get a new fan clutch, its easy to install, takes about 15 minutes.

06-15-2001, 11:54 PM	#3
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	The police fan clutch is supposed to work just like the stock fan clutch. If it was just meant to spin all of the time, it wouldn't be called a clutch. Replace that sucker, it must be defective. ------------------ 351W 89 Mustang GT Convertible

06-16-2001, 01:12 AM	#4
red82gt Sober voice of Reason Join Date: Nov 1998 Location: Kelowna, B.C., Canada Posts: 1,514	It's gotta be toast, I've got the police fan clutch and it behaves like a regular one. ------------------ GT-40 heads (ported, polished, + milled), B303 cam, 1.7rr's, JE pistons, Offy intake, Carter AFB 625cfm carb, Flowtech 1 5/8" shortys, Flowtech X-pipe, MAC Flowpath exhaust, MAC pulleys, 373's, subframes, Eibachs+Tokicos, B&M ripper, FMS Clutch, Zoom Quadrant+cable, 17" CSA Ultra rims, 235/45ZR17 Yokohama AVS S4's, MSD 6A ignition+coil, FMS 9mm wires, Carbed, Naturally Aspirated, and Nasty!

06-16-2001, 11:22 AM	#5
swtstang Registered Member Join Date: Apr 2001 Location: stockton, ca usa Posts: 160	I think I am going to get a Lincoln Mark VIII electric fan. Anybody know how hard of an install that is? It is supposed to pull about 3500cfm, and it's only $100!!!!

06-16-2001, 06:34 PM	#6
88GT5.013.02 Guest Posts: n/a	Where do you get the Mark VIII electric fan from for $100 dollars? I will get one for sure if they are that cheap.

06-17-2001, 03:12 PM	#8
RayScopes Registered Member Join Date: Jun 2001 Location: sterling heights, mi Posts: 8	The police fan clutch is supposed to disengage the fan at a lower engine speed than the stock clutch. If I remember right, this engine speed is 1800 RPM for the police clutch to disengage. ------------------ '88 Mustang GT-GT40 Iron Head Engine, Kenne Bell SC/FMU, AOD www.geocities.com/rayscopes/RaysStang.html

06-17-2001, 03:18 PM	#9
Mr 5 0 Conservative Individualist Join Date: May 1997 Location: Wherever I need to be Posts: 7,487	I have the 'police-duty' fan and it works great. Engages at a lower RPM and draws less HP as well as cooling better. Recommended as a replacement for the stocker.

06-18-2001, 12:24 AM	#10
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	I've had bad luck with the police fan, probaly high mileage, but mine was loud, powerrobbing, and finally broke off, and puncured my radiator, i will only use an electric fan for now on, the night it broke i was down the street thank god....but it felt like it gained 10-15 hp . ------------------ 90 lx coupe: 175k miles, steeda water pump pully, hurst shifter, Mac cold air fenderwell, accel supercoil, ADS chip, aluminum D/S, Black magic fan, 3.27grs. Best time: 13.9116(on 225/60/15 firehawks) Best mph: 98.17 Best 60': 1.9607 next mods: subframes, mac h-pipe

06-18-2001, 11:55 AM	#11
swtstang Registered Member Join Date: Apr 2001 Location: stockton, ca usa Posts: 160	You can pick up the lincoln fan from www.houstonperformance.com for $109 w/ shipping. Let me know how the install is.

06-18-2001, 11:57 AM	#12
swtstang Registered Member Join Date: Apr 2001 Location: stockton, ca usa Posts: 160	You can pick up the lincoln fan from www.houstonperformance.com for $109 w/ shipping. Let me know how the install is.