| Radiator Shroud on a 78 [message #321716] |
Sun, 06 August 2017 19:30  |
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JShot
Messages: 485
Registered: October 2006
Location: NW Ohio
Karma: 0
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Any tricks on removing the fan shroud on a 78? There are two horizontal metal lines that are attached to it at the bottom, so even if they are detached, I doubt that the shroud will come off. I'm assuming it should drop out the bottom. It also looks like the fan should also come off first. Any tips about all of this?
Thanks,
John
John Shotwell
Ridgeville Corners, OH
78 Royale Center Kitchen
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| Re: [GMCnet] Radiator Shroud on a 78 [message #321718 is a reply to message #321716] |
Sun, 06 August 2017 19:48  |
Kingsley Coach
Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada
Karma: -34
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John
AFAIK the fan has to come off to drop the shroud. Why are you trying or
wanting to remove it? To drop the rad it doesn't ave to come off, just
disconnected.
Mike in NS
On Sun, Aug 6, 2017 at 9:30 PM, John Shotwell wrote:
> Any tricks on removing the fan shroud on a 78? There are two horizontal
> metal lines that are attached to it at the bottom, so even if they are
> detached, I doubt that the shroud will come off. I'm assuming it should
> drop out the bottom. It also looks like the fan should also come off first.
> Any tips about all of this?
>
> Thanks,
> John
> --
> John Shotwell
> Ridgeville Corners, OH
> 78 Royale Center Kitchen
> Web Site: GMCmhRegistry.com
> Email: john at gmcmhregistry dot com
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS
Life is too short to hold a grudge; slash some tires and call it even !
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| Re: [GMCnet] Radiator Shroud on a 78 [message #321734 is a reply to message #321721] |
Sun, 06 August 2017 22:52 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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JIm,
Once you remove the 4 bolts on the shroud and fan clutch with fan, you can
lift the shroud enough to clear the trans cooler lines then drop it.
That's the way I remember, as I have not done one in few years.
On Sun, Aug 6, 2017 at 6:08 PM, John Shotwell wrote:
> I'm replacing the clutch on the A6 a/c compressor, and with the use of a
> pit, it looks like the easiest way to get to it, without trying to remove
> the
> A6 without disconnecting any lines, is to attack it from the bottom. It's
> a clear shot, but would be easier if the shroud was out of the way.
> --
> John Shotwell
> Ridgeville Corners, OH
> 78 Royale Center Kitchen
> Web Site: GMCmhRegistry.com
> Email: john at gmcmhregistry dot com
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
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| Re: Radiator Shroud on a 78 [message #321754 is a reply to message #321716] |
Mon, 07 August 2017 09:15 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Those are the transmission lines on the bottom of shroud. They can flex and bend out of the way, but be careful as they can also break somewhere.
You can also remove them, but that is alot of work.
The 78 shroud goes all the way accross??? The 75 does not cover the driver side and i know it eill slide that direction and would be away from the ac
Compressor. Maybe it needs to move to the side and not down for your work???
Other option is to cut it in 1/2 and fab up your own 2 piece fan shroud.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: Radiator Shroud on a 78 [message #321778 is a reply to message #321716] |
Mon, 07 August 2017 17:34 |
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JShot
Messages: 485
Registered: October 2006
Location: NW Ohio
Karma: 0
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So I removed the fan assembly, and removed the four fan shroud bolts. This shroud is one piece, and covers the whole length and width of the back of the radiator. I also un-clamped the two transmission lines attached to the bottom of the shroud. I was able to then rotate the shroud, so I could cut it in half with a Dremel, which then allowed the two parts to come out the bottom.
Now I can reach up from the bottom to the a/c compressor clutch. I managed to get a 9/16 socket on the front bolt. The compressor pulley is free wheeling at this point, as it should be. But the outer most part of the clutch is also free wheeling - like it's not attached to the compressor shaft at all.
I have no way, or tool, to hold the outer most part, so I can remove the nut that holds it on. I have a feeling the problem here is more than a busted, or missing key connecting this outer part to the compressor shaft. This A6 may be toast...
Thanks for your replies and future ideas
John
John Shotwell
Ridgeville Corners, OH
78 Royale Center Kitchen
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| Re: Radiator Shroud on a 78 [message #321782 is a reply to message #321778] |
Mon, 07 August 2017 18:59 |
Bullitthead
Messages: 1411
Registered: November 2013
Karma: 5
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A 3/8 drive impact wrench might get that nut off, but if it's really freewheeling smoothly, the shaft must be broken inside or disconnected from the swashplate somehow.
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
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