Re: [GMCnet] Request assistance identifying likel culprit [message #250241] |
Tue, 20 May 2014 23:51 |
james Ernst
Messages: 79 Registered: December 2013 Location: Lincoln, NE
Karma:
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Hi John, from what you describe it sounds like a frozen pulley on the a/c
compressor and or frozen compressor altogether. Let us all know what you
fing out please.
Jim E.
On May 20, 2014 6:04 PM, "John Novicki" wrote:
> Dear Friends,
>
> Having driven our "new" GMC very little since it came home (about 2 months
> ago), I felt it was time to take it on a short trip preparatory to taking
> it any distance. During the last few weekly start ups, I noticed an
> increasing "belt" sound. Today, I set aside some time to go down and
> tighten
> what I assumed was the alternator belt - as putting a load on the
> alternator seemed to exacerbate the noise. Sure enough, the belt was
> somewhat loose
> - perhaps deflecting 2 inches.
>
> I figured out how to undo the alternator and with my son pulling on a
> large lever, we tightened the alternator so it deflects about 1/2 inch,
> perhaps
> a hair more.
>
> Start up and VERY loud noise. Shut things down quickly. The Alternator
> belt is warm, the AC belt is HOT. Dash heater/AC controls were set to
> "defrost" then
> "off."
>
> Took out the magic elf box (smart phone) and video recorded another start
> up. (Happy how it starts right up) Would you experienced souls take a look
> and listen? I don't think its the alternator belt as the sound seems to
> be coming from the passenger side. My son went outside of the coach and
> confirmed that from the outside front it sounded like the passenger side.
>
> The dash AC does hot work (coach has 3 roof top units) and the air intake
> under the "hood" is blocked off to stop drafts I suppose.
>
> Video http://www.replications.com/gmc/20140520.mp4
>
> Thank you very much for your time and consideration,
>
> John
> --
> John Novicki
> near Gettysburg, Pa
>
> '75 Glenbrook 26'
>
> '73 ex-Glacier 26' soon going to the desert
>
> '39/'46 Austin 8 Van needs new home
> http://www.replications.com/austin8/Austin8Van_1of9.jpg
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Jimbalaya
No Coach yet
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