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Discussion Starter #1
I need a new fan clutch for the cougar. The one presently on it is a non thermal one. At the auto parts store they also have a thermal clutch which has a bi metallic spring thermostat to detect changes in temperature under hood. Which would provide me the best in cooling effectiveness, the non thermal that came stock or the thermal one?
 

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In the area you live the non - thermal is probably fine. The thermal clutch is better if you live in an area with wide temperature changes. You don't need to spend the extra $5 and the clutch will be more reliable with out the added complexity.
 

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I got the #s for the fans and the fan clutches here goes
Fan Clutches
Everco #s
Centrifugal w/5/8" pilot hole CJ and 390 A8684
Centrifugal w/3/4" pilot hole CJ and 390 A8692

Thermal clutches which are what most cars will have with AC or extra
cooling

289/302 A 8195 Fan 17" A8780
351 A 8194 Fan 18" A8781 AC or A8780 non AC 17"
390/428 A 8192 which is the correct 3" length of the unit for correct
clearance to rad.
Fan 390/428 A8781 18"

Hayden #s
Centrifugal or non thermal 1710
Thermal as posted prior 2710
Hayden fan CJ and 390 #3618 no 17 fans in Hayden that I could find for
application

I purrchased the Everco A8781 and Everco A8192 for Beths CJ and cost
about $70 each
Ray
----- Original Message -----
From: "ViCatz" <[email protected]>
To: <[email protected]>
Sent: Monday, March 10, 2003 6:32 PM
Subject: Re: [COUGARS] cooling fan


> Forgot to add I have a C8SE 18" fan for sale. Its damaged on a couple of
the
> blades but could be straigtened out I'd think. Not bad bends just bent a
bit
> on the aluminum blades. Has a C9AE-D clutch which is too long for FE
> Cougars.Its same height/length as the A8195 one they call out for Cougars
> but again its too long. C9ZE I think was the prefix of the fan clutches
and
> C9A is for full size like TBirds.
> Ray
> ----- Original Message -----
> From: "ViCatz" <[email protected]>
> To: <[email protected]>
> Cc: <[email protected]>
> Sent: Monday, March 10, 2003 6:26 PM
> Subject: Re: [COUGARS] cooling fan
>
>
> > Beth et all
> > After a trip to the parts store I came home and removed my fan and
> > clutch from my 390 cat and took it to store for comaparison. I bought my
> > clutch from this store two years ago and is the correct aftermarket
> > replacement. I have ordered a fan and a cluch from EVERCO. Now if memory
> > serves you need for a 69 CJ is that correct?
> > #s I will post today are for the correct replacement fans for
clutched
> > fans
> > 1) 289/302 351 noAC 17" A8780
> > 2)351AC 390 A 8781 18" fan
> > 3) CJ and 427 A8782 19" fan
> > Anyone confirm 19" fan for CJs?
> > Fans are about $60 each and look a lot like the originals do/did.
> > Now the clutch itself is the hard part to locate the correct length
> > which is why I wanted to do this for Beth,myself and any others looking
> for
> > correct replacements. The length needs to be ~3" for FE and anything
> longer
> > than 3" interferes with the rad I find. Mine is 3" and I have these #s
on
> it
> > which I have not decoded yet. Maybe someone on list will recognize them
I
> > 'think' its a Hayden #. On the face is 27113029 and on hub flange is
> either
> > an H or an I depending on how you look at it with 18879 stamped/cast
into
> > flange or hub. Mine I believe is a thermal clutch but there are
> centrifugal
> > clutches listed as well for CJ engines A8692 and A8694 I think are the
#s
> I
> > forgot to write them down, doh!. They also list A 8195 thermal which
> switchs
> > up to a 5011T does not fit as its too long but its what book calls for.
> Also
> > calls out A8192 which I ordered in to see if its correct length etc for
FE
> > Catz. Hopefully after a couple tries we will have the correct parts for
> you
> > and the correct #s for everyone else seeking replacements.
> > I'll update again as soon as I have some answers
> > Catzya then Ray
> > ----- Original Message -----
> > From: "ecolegbg" <[email protected]>
> > To: <[email protected]>
> > Sent: Sunday, March 09, 2003 6:53 PM
> > Subject: Re: [COUGARS] cooling fan
> >
> >
> > > Ray, we have PS and no smog set up. If you can come up with a clutch
> > > and a seven blade fan that would be great. Just let us know what
> > > we'd owe you.
> > > thanks
> > > beth
> > >
> > > --- In [email protected], "ViCatz" <[email protected]>
> > > wrote:
> > > > Beth let me have a shot at getting the correct part #s again on
> > > Monday when
> > > > parts store is open. Once I get the correct #s I'll post them and
> > > save them
> > > > for referance.
> > > > I don't know the distributor in your area but I can get and
> > > send from
> > > > here easily enough. I'll make sure its correct before I send it out.
> > > > Is it the fan or the fan clutch or both that you need?
> > > > Ray
> > > > ----- Original Message -----
> > > > From: "ecolegbg" <[email protected]>
> > > > To: <[email protected]>
> > > > Sent: Sunday, March 09, 2003 2:14 PM
> > > > Subject: Re: [COUGARS] cooling fan
> > > >
> > > >
> > > > > Ray, would you happen to know a distributor of Everco products?
> > > > > Everyone has been helpful with their input. I think this may be
> > > the
> > > > > way we will go for now.
> > > > > beth
> > > > >
> > > > >
> > > > > --- In [email protected], "ViCatz" <[email protected]>
> > > > > wrote:
> > > > > > The short clutch only works in non pS cars (in my experience)
> > > > > however the
> > > > > > 390 clutch fits fine and works well when PS is a consideration.
> > > The
> > > > > short
> > > > > > clutch, the blades interfere with the PS belt. The diff if I
> > > recall
> > > > > tween
> > > > > > 390 and CJ clutches was that one is centrifugal and the other
> > > > > thermal.(I
> > > > > > think). Aftermarket clutches and fans are easily available and
> > > good
> > > > > quality
> > > > > > from Everco and a couple other name brands. These are not the
> > > cheap
> > > > > thin
> > > > > > aluminum pieces of garbage you buy at speed shops these are the
> > > > > real thing
> > > > > > w/o correct #s.
> > > > > > Ray
 

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Ray

I found the Hayden 2710 too long for the 428. Their is another fan clutch they make that is a little shorter that works. I don't recall the part number. Even that clutch is longer than the original, and sits very close to the radiator. Hayden also makes these in a heavy duty thermal clutch.

Steve
 

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Steve,

Send me an email off list, I will send you a lot of info comparing fan clutch's for 390-428CJ applications.

I have the Hayden 2710 on two of my FE Cougars, works great. It is about 7/8" longer than the original but clears everything without issue, even using a four core aftermarket radiator. There are some factory Ford applications that can be found NOS that work well too and appearance wise are very close to the original.
 

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Discussion Starter #6
I went ahead and bought and installed a Hayden 2710 Thermal clutch. While I was at it I had the radiator taken off and had it checked by radiator shop and showed no corrosion or buildup. They told me I would be wasting my money to have it cleaned. I also painted my 7 blade fan while it was off. I drove it today and saw a 20-25% decrease in temp. It had been pegging on the edge of the red mark. It had been running hot in the Fall of 2002 and probably needed a new fan clutch all along.
 

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The shorter fan clutch that fits FEs is Hayden 2711. It is not listed as being for the FE, but others have tried and it fits, even though it still is a tad longer than some original FE fan-clutches.
 

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Original Fan Clutch

Hello,

I have a 68 Cougar with 390 and AT without AC. The engine was running hotter than I would like in California at 210 sometimes. The engine had a 5 blade fan with a correct length spacer and no fan clutch which is supposed to be on the car. The fan aligned correctly to the fan shroud where the fan blades align about half inside the shroud. When I took out the fan shroud I noticed the number is for a 69 390GT/428CJ engine but seems to fit fine. I decided to put my radiator fan back to original and to add a fan clutch which the engine should have. I bought an original 7 blade fan that is 18.25" (H C6OE-F listed for 1967) that also has an original fan clutch with thermostat attached (C7ZE-B is listed for a 1967 390GT without AC) but I don't know if it works.

Is there a way to tell if this original fan clutch is working properly before I install it or should I just get a new after market unit like the Hayden 2710 or 2711 as mentioned in this thread? If the original works is the Hayden still more efficient? I want the vehicle to be very reliable. What would you guys do?

Thanks
 

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buy a new aftermarket one and save the old one if it is correct original oem.
 

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If the clutch fan wobbles and seeps fluid it's on the way out. I have a replacement Eaton on my car that's marginal. No wobble but seeped a little fluid.

I bought the Hayden 2710 to replace it with. It's a nice quality unit made in the USA but it is a little longer than the stock unit's shaft @ 1.75" Not a problem with the stock rad and shroud. And it has the correct bolt 3.00" pattern for the 68 C8OE-B fan. The 2711 would be a even better fit being the shaft it only 1.40" long with the same 3.00" fan bolt pattern. Thet also come with a brass sleeve needed for the FE's water pump shaft. Guess it's a multi application part. I bought a nice replacement aluminum rad and the 2711 has at best .250" clearance. I need to remove the waterpump to mount the whole assy on mine as there's not enough clearance for the clutch fan to clear the water pump shaft without hitting the radiator. I think I might just pickup a 2711 and make things easy and gain some needed clearance.

There is a guy who rebuilds the oem units if you need the correct part for your resto. Forget offhand his name but have it saved in my fav's somewhere if you need it.
 

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I installed the Hayden 2711 which is the right number to give the correct distance from the radiator. I installed a 67 C6OE-F original fan which is essentially the same as the C8OE-B fan that came on the car. I have a correct size original shroud. It looks like I should have better cooling now but if not I will mess with the radiator but I think that is ok. The engine previously had a 5 blade flex fan and no clutch. I also added the correct upper and lower radiator hoses from Marti Auto. Looks nice and original but I hope it all works right.

I attached a photo in case it will be helpful to anyone.
 

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