<VV> 66 A/C Update

[Garry]

Thanks for all your input Timothy,

It is the low mount. When it started squealing, I was on the road and 
just shut off the A/C for a few minutes, and re-started it at a low 
speed. It did not squeal again until I turned into the driveway. The 
entire drive was on a 40mph road, so it never got up to highway speeds. 
Didn't sound like a belt, more of a scraping sound, but I haven't had 
eyes on it when it happens - that whole hood up thing. I guess I should 
have replaced the belt before starting, got in too big a hurry. That 
would certainly make more sense than replacing the clutch right off the 
bat. Thanks again,

Garry

On 8/22/2016 8:26 PM, shortle wrote:
> Hey Garry, the squealing you are hearing is probably the belt is too loose. The engine fan belts needs to be left sort of loose. The A/C compressor belt is a different story. At high high side pressure there is even more load for the belt to turn. It needs to be pretty tight.
> Those pressure readings you posted are looking pretty normal for a functioning system. What compressor bracket are you running, the "low boy" that attaches right to the head or the "high mount" that puts the compressor above the head by a few inches. I am guessing you have the low
> Timothy Shortle in Durango Colorado 81301
>
>
> -----Original Message-----
>> From: Garry <ntcagp at sbcglobal.net>
>> Sent: Aug 22, 2016 6:51 PM
>> To: shortle <shortle556 at earthlink.net>, virtualvairs at corvair.org
>> Subject: Re: <VV> 66 A/C Update
>>
>> Hi all,
>>
>> Hopefully final update on the A/C - it is charged, running 32 psi low
>> and 205 psi high in 80 degree weather - in the shop. Putting out approx.
>> 46 degrees from right hand vent after running about 30 minutes. Not
>> perfect numbers, but considering it hadn't run in 4-5 years, probably
>> not too bad. Alas, during the test drive, about 3 miles in, the
>> screeching returned. I believe the clutch is slipping, as it sounds
>> metallic in nature. When off it feels looser than it should, so I guess
>> that's the next step. Are these universal GM or is there that weird
>> reverse direction thing going on? Cooling down around here now, so
>> probably will make this a winter project.
>>
>> Thanks again for all the advice and encouragement - and especially the
>> warnings!
>>
>> Garry
>>
>>
>>
>