| [GMCnet] FAN CLUTCH [message #224388] |
Wed, 02 October 2013 20:29  |
larry erd
Messages: 132
Registered: August 2010
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My FAN CLUTCH FROZE up on the way home from
Branson it is really load when it's spinning full speed.
I ordered a Hayden 2797 (severe duty) because the
parts interchange index has that model marked (RECOMMENDED).
Now a few of my GMC friends say that model will always be running
and I should have ordered a lighter duty clutch. Please share your
wisdom on this subject and also any tips on the install. It was easy
putting in when I had the frame and engine out of the coach last year.
I have another Rally next Thur. so I have to hustle.
We had a good time at Branson, I hope we can make it to Texas in
the spring. Maybe I'll have the coach all done by then, or will it really
ever be done done.
Larry Erd
the '77 Murphy bed
Lake Wales, Fl.
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| Re: [GMCnet] FAN CLUTCH [message #224391 is a reply to message #224388] |
Wed, 02 October 2013 20:43  |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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| larry erd wrote on Wed, 02 October 2013 18:29 |
My FAN CLUTCH FROZE up on the way home from
Branson it is really load when it's spinning full speed.
I ordered a Hayden 2797 (severe duty) because the
parts interchange index has that model marked (RECOMMENDED).
Now a few of my GMC friends say that model will always be running
and I should have ordered a lighter duty clutch. Please share your
wisdom on this subject and also any tips on the install. It was easy
putting in when I had the frame and engine out of the coach last year.
I have another Rally next Thur. so I have to hustle.
We had a good time at Branson, I hope we can make it to Texas in
the spring. Maybe I'll have the coach all done by then, or will it really
ever be done done.
Larry Erd
the '77 Murphy bed
Lake Wales, Fl.
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. Some don't like Hayden but it works ok for me. In my opinion the sever duty 2797 is a better choice then the heavy duty 2747. Mine doesn't engage till about 210 or 220 degrees and it doesn't roar like the earlier ones did. I'm running 3:70 gears so I know when it kicks in. I had a 2747 on mine when they came out and I didn't like it. The last thing you need is an overheating motor.
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] FAN CLUTCH [message #224394 is a reply to message #224391] |
Wed, 02 October 2013 20:50 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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If the clutch is held on by bolts it would be in your best interest to replace them with studs to make changing the clutch easy from the top side . Just unbolt the fan and lay it against the radiator take the 4 nuts and washers off the clutch and lift it out. With studs it will be easy to bolt it back on.
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] FAN CLUTCH [message #224396 is a reply to message #224388] |
Wed, 02 October 2013 21:12 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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I called Kanomata when mine quit. He sent me one in a Delco box, works just like the one that died.
--johnny
'76 23' transmode norris
--------------------------------------------
On Thu, 10/3/13, Larry Erd <1ljerd@gmail.com> wrote:
Subject: [GMCnet] FAN CLUTCH
To: gmclist@temp.gmcnet.org
Date: Thursday, October 3, 2013, 1:29 AM
My FAN CLUTCH FROZE up on the way
home from
Branson it is really load when it's spinning full speed.
I ordered a Hayden 2797 (severe duty) because the
parts interchange index has that model marked
(RECOMMENDED).
Now a few of my GMC friends say that model will always be
running
and I should have ordered a lighter duty clutch. Please
share your
wisdom on this subject and also any tips on the install. It
was easy
putting in when I had the frame and engine out of the coach
last year.
I have another Rally next Thur. so I have to hustle.
We had a good time at Branson, I hope we can make it to
Texas in
the spring. Maybe I'll have the coach all done by then, or
will it really
ever be done done.
Larry Erd
the '77 Murphy bed
Lake Wales, Fl.
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] FAN CLUTCH [message #224401 is a reply to message #224388] |
Wed, 02 October 2013 23:18 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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I went through 3 of them trying to get one that would not come on early. In fact it stayed on most of the time. In working with their engineers they bragged about them coming on at a lower temperature than the OEM AC Delco. Hayden tried to get me to field modify the temperature spring on the 3rd one. I refused and sent it back to Hayden. Hayden refunded my money and I installed an heavy duty Delco instead.
I then worked with Delco engineering. They asked for diameter measurements and pitch of the fan and recommended the Heavy duty clutch. To install the severe duty was not recommenced and also required a minimum of two 1/2' belts to drive it.
I recommend the heavy duty Delco though some people do run the severe duty ones. Make sure your belts are good and tensioned properly if you use the severe duty one.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] FAN CLUTCH [message #224415 is a reply to message #224388] |
Thu, 03 October 2013 07:06 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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I run the Hayden 2747 Heavy Duty and love it. I tried the Severe Duty, it was on way too often and it just roared.
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Larry Erd <1ljerd@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Wednesday, October 2, 2013 8:29 PM
Subject: [GMCnet] FAN CLUTCH
My FAN CLUTCH FROZE up on the way home from
Branson it is really load when it's spinning full speed.
I ordered a Hayden 2797 (severe duty) because the
parts interchange index has that model marked (RECOMMENDED).
Now a few of my GMC friends say that model will always be running
and I should have ordered a lighter duty clutch. Please share your
wisdom on this subject and also any tips on the install. It was easy
putting in when I had the frame and engine out of the coach last year.
I have another Rally next Thur. so I have to hustle.
We had a good time at Branson, I hope we can make it to Texas in
the spring. Maybe I'll have the coach all done by then, or will it really
ever be done done.
Larry Erd
the '77 Murphy bed
Lake Wales, Fl.
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] FAN CLUTCH [message #224416 is a reply to message #224401] |
Thu, 03 October 2013 07:04 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Ken, what number is the Delco Heavy Duty fan clutch??
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Ken Burton <n9cv@comcast.net>
To: gmclist@temp.gmcnet.org
Sent: Wednesday, October 2, 2013 11:18 PM
Subject: Re: [GMCnet] FAN CLUTCH
I went through 3 of them trying to get one that would not come on early. In fact it stayed on most of the time. In working with their engineers they bragged about them coming on at a lower temperature than the OEM AC Delco. Hayden tried to get me to field modify the temperature spring on the 3rd one. I refused and sent it back to Hayden. Hayden refunded my money and I installed an heavy duty Delco instead.
I then worked with Delco engineering. They asked for diameter measurements and pitch of the fan and recommended the Heavy duty clutch. To install the severe duty was not recommenced and also required a minimum of two 1/2' belts to drive it.
I recommend the heavy duty Delco though some people do run the severe duty ones. Make sure your belts are good and tensioned properly if you use the severe duty one.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] FAN CLUTCH [message #224433 is a reply to message #224388] |
Thu, 03 October 2013 11:07 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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15-4208.
It appears to be superseded with 15-4216.
The 15-4644 is the SEVERE duty clutch that Jim K. sells.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] FAN CLUTCH [message #224439 is a reply to message #224436] |
Thu, 03 October 2013 12:17 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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Steve Fergerson tested several fan clutches a year or two ago.i believe he said Hayden supplies GM with heavy duty clutches? He may have more input here.if that is the case you would be buying a Hayden clutch in GM box .
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] FAN CLUTCH [message #224458 is a reply to message #224439] |
Thu, 03 October 2013 18:24 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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When I was doing the research about 8 years ago, the AC Delco 4644 was NOT made by Hayden, and they were NOT the same clutch as the Hayden. At the time they were built somewhere in the midwest but I forgot where.
That could have changed to Mexico or China now.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] FAN CLUTCH [message #300285 is a reply to message #224458] |
Sun, 08 May 2016 17:42 |
mghamms
Messages: 466
Registered: March 2016
Location: Ware, Massachusetts
Karma: 2
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I have to change out my fan clutch.
Any easy way to do it.LOL.
Maybe from the top.
1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
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| Re: [GMCnet] FAN CLUTCH [message #300299 is a reply to message #300285] |
Sun, 08 May 2016 20:11 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Mghamms wrote on Sun, 08 May 2016 18:42I have to change out my fan clutch.
Any easy way to do it.LOL.
Maybe from the top.
MGHAMMS,
Yes, from the top. If it is stock there is almost no chance from the bottom.
But without any hint what year, engine an mods, the best anybody (like me) can do is give a non-specific wild-assed guess.
So, cut a belly board and get out a wrench. There can be many shortcuts.
You would yourself a favor to add a sigfile. Then, we can be a lot more help.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] FAN CLUTCH [message #300310 is a reply to message #224388] |
Mon, 09 May 2016 03:14 |
appie
Messages: 902
Registered: April 2013
Location: denmark
Karma: 2
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Did mine from the top. 20 minutes. Ordered from applied works like a dream , now 12000 Ml. But then again it only locked ones on a long, steep climb
Appie
eleganza 76 "Olga" now sadly sold
6 wheel discbrake
Quadrabags
Springfield stage 2 462 olds
Manny tranny
( pictures at http://www.gmcmhphotos.com/photos/g6489-olga.html
Fulltiming in Europe july 2014 til july 2016
Denmark
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| Re: [GMCnet] FAN CLUTCH [message #300313 is a reply to message #300310] |
Mon, 09 May 2016 05:46 |
mghamms
Messages: 466
Registered: March 2016
Location: Ware, Massachusetts
Karma: 2
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appie wrote on Mon, 09 May 2016 03:14Did mine from the top. 20 minutes. Ordered from applied works like a dream , now 12000 Ml. But then again it only locked ones on a long, steep climb
Any tricks?
1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
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| Re: [GMCnet] FAN CLUTCH [message #300329 is a reply to message #300317] |
Mon, 09 May 2016 10:11 |
appie
Messages: 902
Registered: April 2013
Location: denmark
Karma: 2
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Yes. Remove fan, remove old clutch and viceversa. Iff I remember right, you cant actually remove the fan, but just push it to a side
Appie
eleganza 76 "Olga" now sadly sold
6 wheel discbrake
Quadrabags
Springfield stage 2 462 olds
Manny tranny
( pictures at http://www.gmcmhphotos.com/photos/g6489-olga.html
Fulltiming in Europe july 2014 til july 2016
Denmark
[Updated on: Mon, 09 May 2016 10:12] Report message to a moderator |
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| Re: [GMCnet] FAN CLUTCH [message #300330 is a reply to message #300313] |
Mon, 09 May 2016 10:28 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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It will be a lot easier to put the new fan back on if you have studs in the water pump rather then bolts
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] FAN CLUTCH [message #300365 is a reply to message #300329] |
Mon, 09 May 2016 17:59 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Break the fan bolts loose first while on the shaft as one can hold the
blade with your hand as you loosen the bolts.
Then break the 4 nuts on the pump with the belts in place.
The pulley can tilt a little, but if your careful, you can run up the nuts
when installing by doing some little so it will tilt it back to normal.
On Mon, May 9, 2016 at 8:11 AM, lenze middelberg
wrote:
> Yes. Remove fan, remove old clutch and viceversa
> --
> Appie
> eleganza 76 "Olga"
> 6 wheel discbrake
> Quadrabags
> Springfield stage 2 462 olds
> Manny tranny
> ( pictures at http://www.gmcmhphotos.com/photos/g6489-olga.html
> Fulltiming in Europe since july 1 2014
> Denmark
>
> _______________________________________________
> GMCnet mailing list
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>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
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jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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