Hayden Fan Clutch Install

G

gene

New member
Sep 29, 1999
2,215
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I took a poll of my GMC buds, and asked if it was possible to change clutch
without removing the shrowd and belts

2 said no
1 said maybe
2 abstained by not being home.

But yes Virginia it is possible.

I think it can be done entirely from the top. But my good friend Manny
says I am old enough to know someone has to be on the bottom so I took out
some of the bolts from the bottom.

I had to remove the fan from the clutch inside the shrowd to remove and
replace the clutch. The one I removed was a Delco but it did not roar at
start up , and did not operate on the last two hills so I replaced it. It
took me two hours, but had I known this was possible I think it could be
done on a cold engine in about 30 Min.

Gene

Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
Now you tell me..... It was not too bad but I would not want to do it
every year like you have.... Were they Hayden clutches ???

gene

>I gotta reply to this. I'm at the bottom of the list when it comes to
>mechanical expertise. I've changed mine at least four, perhaps five times
in
>the years I've owned it., ALWAYS from the top and by myself. I take out the
>fan bolts first and manuver the fan blades out, then the clutch. I do have a
>403 if that makes any difference in clearance.,
>Justin
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
You are correct Gene. Even less than 1/2 hr. if properly motivated. I had to do
the same when I bought mine, in the parking lot of NAPA in TAOS NM. I wrote in
my log 22 min., 2 wrenches and a bright sunny morning. Darren

> I took a poll of my GMC buds, and asked if it was possible to change clutch
> without removing the shrowd and belts
>
> 2 said no
> 1 said maybe
> 2 abstained by not being home.
>
> But yes Virginia it is possible.
>
> I think it can be done entirely from the top. But my good friend Manny
> says I am old enough to know someone has to be on the bottom so I took out
> some of the bolts from the bottom.
>
> I had to remove the fan from the clutch inside the shrowd to remove and
> replace the clutch. The one I removed was a Delco but it did not roar at
> start up , and did not operate on the last two hills so I replaced it. It
> took me two hours, but had I known this was possible I think it could be
> done on a cold engine in about 30 Min.
>
> Gene
>
> Genef -- 77PB/ore/ca
> GMC MOTORHOME INFORMATION
> mr.erf
> http://www.california.com/~eagle/

- --
Darren Paget
76 Experimental
Another Fab Day
http://www.TZEplus.com
 
Gene,
I have a 77 Eleganza II with the 403 and I can change the fan clutch in
about 20 minutes. I have no interference with the schroud and the belts
do not have to come off. Some of the earlier coaches had problems with
the schroud causing problems but there is a mod to correct that was in
GMC Motorhome news. It might be out on one of the GMC sites.
- --
J.R. Wright
GMC GreatLakers
77 Eleganza II
Michigan

>
> I took a poll of my GMC buds, and asked if it was possible to change clutch
> without removing the shrowd and belts
>
> 2 said no
> 1 said maybe
> 2 abstained by not being home.
>
> But yes Virginia it is possible.
>
> I think it can be done entirely from the top. But my good friend Manny
> says I am old enough to know someone has to be on the bottom so I took out
> some of the bolts from the bottom.
>
> I had to remove the fan from the clutch inside the shrowd to remove and
> replace the clutch. The one I removed was a Delco but it did not roar at
> start up , and did not operate on the last two hills so I replaced it. It
> took me two hours, but had I known this was possible I think it could be
> done on a cold engine in about 30 Min.
>
> Gene
>
> Genef -- 77PB/ore/ca
> GMC MOTORHOME INFORMATION
> mr.erf
> http://www.california.com/~eagle/
 
Your right Mr. Wright. Here's the article from GMC Motorhome Marketplace=20
04-97 - p.24 Servicing the Shroud
By Ken Thoma
Fredericksburg TX

Get rid of about 25 lbs. of iron and a greasy dirty rubber ring that=20
is restrictive in changing belts, getting to the power steering and=20
servicing the air conditioning compressor. Replace this with a simple=20
shroud that allows easy accessibility for changing fan belts, fan clutches,=
=20
power steering and air conditioning.

Step 1. Remove the whole shroud from the vehicle. Take the fan blades off=20
to do this, remove 4 steel
brackets (2 top & 2 bottom) and drop it down. Step 2. Remove the rubber=20
ring and discard it. Clean and paint plastic shroud.
Step 3. Obtain 2 pieces of 1/32 sheet metal 4" wide and 36" long.
Step 4. Bend up ends about 3/4" from each end on one piece. Install a 1/8"=
=20
X 3/4" X 4" strip on each end. Pop rivet them on as stiffeners.
Step 5. Pop rivet this to top 1/2 of plastic shroud.
Step 6. Take the other piece and put 1/8" X 3/4" X 4 strip on one end and=20
bend 90=F8. Ear clamp it to one side of top 1/2 and bend around the bottom=
to=20
give you proper length, allowing for another 3/4" flange. Install last 3/4"=
=20
bar and bend 90=F8.
Step 7. Drill a clearance hole in the 2 bottom flanges and a tap size in=20
the 2 top flanges. Can use 1/2 -20 bolt or self tapping screws. Drill 2"=20
1/4" holes equally spaced in bottom for 2 self tapping screws into plastic=
=20
shroud. For easy access to fan belts, fan clutch, belts, etc. remove 4=20
screws and bottom 1/2.

The indexes for the GMCMM are handy for this type of thing. They are=20
located at:
http://gmcmotorhome.homepage.com/

bdub

>Gene,
>I have a 77 Eleganza II with the 403 and I can change the fan clutch in
>about 20 minutes. I have no interference with the schroud and the belts
>do not have to come off. Some of the earlier coaches had problems with
>the schroud causing problems but there is a mod to correct that was in
>GMC Motorhome news. It might be out on one of the GMC sites.
>--
>J.R. Wright
>GMC GreatLakers
>77 Eleganza II
>Michigan
>

> >
> > I took a poll of my GMC buds, and asked if it was possible to change=
clutch
> > without removing the shrowd and belts
> >
> > 2 said no
> > 1 said maybe
> > 2 abstained by not being home.
> >
> > But yes Virginia it is possible.
> >
> > I think it can be done entirely from the top. But my good friend Manny
> > says I am old enough to know someone has to be on the bottom so I took=
out
> > some of the bolts from the bottom.
> >
> > I had to remove the fan from the clutch inside the shrowd to remove and
> > replace the clutch. The one I removed was a Delco but it did not roar at
> > start up , and did not operate on the last two hills so I replaced it.=
It
> > took me two hours, but had I known this was possible I think it could be
> > done on a cold engine in about 30 Min.
> >
> > Gene
> >
> > Genef -- 77PB/ore/ca
> > GMC MOTORHOME INFORMATION
> > mr.erf
> > http://www.california.com/~eagle/
 
> I took a poll of my GMC buds, and asked if it was possible to change
> clutch
> without removing the shrowd and belts
>
> 2 said no
> 1 said maybe
> 2 abstained by not being home.
>

Aah, but if you had asked me, I would have said yes, but you have to jack
up the rear of the coach first. But then, y'all already know I am
mechanically challenged and (obviously) proud of it!

David Lee Greenberg
The GMC Motorhome Registry
Dedicated To The Classic GMC Motorhome
www.gmcss.com/registry.htm
 
>I took a poll of my GMC buds, and asked if it was possible to change clutch
>without removing the shrowd and belts
>
>2 said no
>1 said maybe
>2 abstained by not being home.
>
>But yes Virginia it is possible.
>
>I think it can be done entirely from the top. ...

That is how I did mine. It helps to have a board to lay over the top of the=
=20
engine compartment opening. The board gives you something to lay on while=20
you reach down from the top. I think it took me about a 1/2 hour or so. Its=
=20
reasonably easy.

Dave
Ann Arbor, MI.
73 Sequoia (26'/455/EFI/HEI/160=B0)
 
I am curious which one. I am using the heavy duty NAPA clutch listen in the
GMCMI parts cross reference, and it has been working perfectly. I am now able
to drive out of Texas in 110+ degrees over the rolling hills of Oklahoma with
no overheating problems whatsoever. Prior to this clutch, I darn near melted
down . . .

- - Tim

> In a message dated 02/29/2000 7:57:31 PM Central Standard Time,

>
> >>
> No, I use GMC clutches, but I did install one from NAPA which didn't work and
> took it back.
> Justin
>

- --
================================================================================
Tim Dawson (tadawson) Owner/Engineer
TPC Services Bellnet: (972)-221-7385
Lewisville, Texas 75067 FAXnet: (972)-221-0393
"The world is complex. Sendmail.cf reflects this...."
 
great idea, my knees are not what they used to be.

gene

>>I took a poll of my GMC buds, and asked if it was possible to change=
clutch
>>without removing the shrowd and belts
>>
>>2 said no
>>1 said maybe
>>2 abstained by not being home.
>>
>>But yes Virginia it is possible.
>>
>>I think it can be done entirely from the top. ...
>
>That is how I did mine. It helps to have a board to lay over the top of the=
=20
>engine compartment opening. The board gives you something to lay on while=
=20
>you reach down from the top. I think it took me about a 1/2 hour or so. Its=
=20
>reasonably easy.
>
>
>
>Dave
>Ann Arbor, MI.
>73 Sequoia (26'/455/EFI/HEI/160=B0)
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
I have notes on my web page under ENGINE, but the Hayden 2979 severe duty
has been the most recommended one.

gene

>I am curious which one. I am using the heavy duty NAPA clutch listen in the
>GMCMI parts cross reference, and it has been working perfectly. I am now
able
>to drive out of Texas in 110+ degrees over the rolling hills of Oklahoma with
>no overheating problems whatsoever. Prior to this clutch, I darn near
melted
>down . . .
>
>- Tim
>
>
>> In a message dated 02/29/2000 7:57:31 PM Central Standard Time,

>>
>> > >>
>> No, I use GMC clutches, but I did install one from NAPA which didn't
work and
>> took it back.
>> Justin
>>
>
>
>--
>===========================================================================
=====
>Tim Dawson (tadawson) Owner/Engineer
>TPC Services Bellnet: (972)-221-7385
>Lewisville, Texas 75067 FAXnet: (972)-221-0393
>"The world is complex. Sendmail.cf reflects this...."
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
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