VANAGON archives -- September 2019, week 4 (#51)

Date:         Thu, 26 Sep 2019 15:13:57 -0500
Reply-To:     mccullough bob <mbob1950@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         mccullough bob <mbob1950@GMAIL.COM>
Subject:      Re: A/C O-rings
Comments: To: Dennis Haynes <d23haynes57@hotmail.com>
In-Reply-To:  <DEC2A90B-2383-46A4-A375-3BBA587D5B8D@gmail.com>
Content-Type: text/plain; charset=utf-8

Found the problem. The aluminum flange in the new (2yr) old hose fitting had a hairline crack letting gas out bypassing the O-ring.
Getting it replaced and then I will charge it up again.

Thanks
Bob

 
http://idiopath2018.wordpress.com <http://idiopath2018.wordpress.com/>
https://idiopath2017.wordpress.com <https://idiopath2017.wordpress.com/>










> On 24, Sep2019, at 9:02 PM, mccullough bob <mbob1950@gmail.com> wrote:
> 
> Thanks Dennis
> 4 Seasons was where I got the compressor.
> Bob
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> http://idiopath2018.wordpress.com <http://idiopath2018.wordpress.com/>
> https://idiopath2017.wordpress.com <https://idiopath2017.wordpress.com/>
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>> On 24, Sep2019, at 8:50 PM, Dennis Haynes <d23haynes57@hotmail.com <mailto:d23haynes57@hotmail.com>> wrote:
>> 
>> Sorry I miss understood. Try this kit.
>> https://www.amazon.com/Four-Seasons-26743-Gasket-Conditioning/dp/B000C2O8UE/ref=sr_1_13?keywords=26738&qid=1569375996&sr=8-13 <https://www.amazon.com/Four-Seasons-26743-Gasket-Conditioning/dp/B000C2O8UE/ref=sr_1_13?keywords=26738&qid=1569375996&sr=8-13>
>>  
>> It should have what you need.
>>  
>> Dennis
>>  
>>  
>> From: mccullough bob [mailto:mbob1950@gmail.com <mailto:mbob1950@gmail.com>] 
>> Sent: Tuesday, September 24, 2019 9:20 PM
>> To: Dennis Haynes <d23haynes57@hotmail.com <mailto:d23haynes57@hotmail.com>>
>> Cc: vanagon@GERRY.VANAGON.COM <mailto:vanagon@GERRY.VANAGON.COM>
>> Subject: Re: A/C O-rings
>>  
>> Thanks Dennis
>> It had the later SD709 comp. originally and I replaced it with a new SD709. The connection that is bad is not on the back of the comp. but 
>> between the lo press. return hose and curved pipe that goes to the comp. intake. The fitting looks fine.
>> When I rebuilt the system 2+ years ago I used regular auto parts green o-rings. Picked up a assortment of 205 pieces today and none fit.
>> I tried one place, looking for a original vw o-ring but they were out. 
>> Ill keep looking.
>>  
>> Thanks
>>  
>> Bob
>>  
>>  
>> http://idiopath2018.wordpress.com <https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fidiopath2018.wordpress.com&data=02%7C01%7C%7Ce30c1a244ced48c0749408d7415692e7%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637049712388688128&sdata=VdrgUmznUmmLP4nR9cweno8qp2vi4PyWOXWI1TPZmIY%3D&reserved=0>
>> https://idiopath2017.wordpress.com <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fidiopath2017.wordpress.com&data=02%7C01%7C%7Ce30c1a244ced48c0749408d7415692e7%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637049712388688128&sdata=qwJJ1yv9aDO8Y4irrcEHn41zOpOYX1Q%2Fjd6BbYLBGQs%3D&reserved=0>
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>> On 24, Sep2019, at 7:54 PM, Dennis Haynes <d23haynes57@hotmail.com <mailto:d23haynes57@hotmail.com>> wrote:
>>  
>> Sounds like you have the early AC set up. A good AC hose shop should have the correct rings, you probably need a -8 and a -10. The ring being mangled indicates the wrong one used and the connection came loose or the seat in the back of the compressor is damaged. If the connection di come loose vibration can damage both the head and the hose fitting itself. Best fix could be to replace the compressor with the later set-up, o-ring flange and a single bracket-screw clamping both hoses or some other retrofit set up.   
>> 
>> Dennis
>> 
>> 
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com <mailto:vanagon@gerry.vanagon.com>] On Behalf Of mccullough bob
>> Sent: Tuesday, September 24, 2019 7:24 PM
>> To: vanagon@GERRY.VANAGON.COM <mailto:vanagon@GERRY.VANAGON.COM>
>> Subject: A/C O-rings
>> 
>> 87 Syncro GL Tin Top converted to a Camper. AC converted to RedTec 12a.
>> 
>> On my trip up the Appalachian Plateau from Tenn to Pa this summer I lost my AC charge on the way home. 
>> On return I aired it up to check for leaks and immediately heard a leak at the large low pressure hose connection to the pipe that takes it back to the suction side of the compressor. This is the large screw connection to the left of the compressor clutch. This system has run fine for 2+ years since I rebuilt it.
>> I can’t get the o-ring to seal. when I undo it  the  o-rings are slightly macerated. 
>> I never had this problem before and have changed that o-ring before without problems.
>> The connection look good and goes together nicely but leaks.
>> The Bentley shows on page 87.16 figure 87-952b the connection between hose 1 and pipe 2 and calls for a vw 803 260 749 B.
>> 
>> I have tried
>> 
>>           ID             OD            Thickness
>> 
>>         35/64         23/32             3/32
>>          1/2              11/16            3/32
>>           1/2              5/8               1/16
>> 
>> I don’t have a 1/8 thickness of the right size.
>> 
>> Does anyone know the dimensions of the original oring? Or a substitute?
>> Has anyone had problems with this connection before?
>> 
>> Thank all of you for a great Forum.
>> Bob
>> 
>> 
>> https://apc01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fidiopath2018.wordpress.com&amp;data=02%7C01%7C%7Cbfa831bd1195440e951e08d741465813%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637049642729960272&amp;sdata=d6BFQ4T0NNLk7wxWQmmzwhGrBl452ZS1lG3JiK19Zec%3D&amp;reserved=0 <https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fidiopath2018.wordpress.com&data=02%7C01%7C%7Ce30c1a244ced48c0749408d7415692e7%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637049712388698133&sdata=SyNSGxl3gRruvIk3Y5VWXOUBErn5q8UWPNfBwMpdD90%3D&reserved=0><https://apc01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fidiopath2018.wordpress.com%2F&amp;data=02%7C01%7C%7Cbfa831bd1195440e951e08d741465813%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637049642729960272&amp;sdata=PV4xp7hKLHUxAbMaK2P5j8b%2FdRZjyA5jBb8yq%2F57Dpo%3D&amp;reserved=0 <https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fidiopath2018.wordpress.com%2F&data=02%7C01%7C%7Ce30c1a244ced48c0749408d7415692e7%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637049712388698133&sdata=l6c8f9xB4FCIjMSow2gzGeL5N40JwoVU0PMyTF%2Fmq%2FI%3D&reserved=0>>
>> https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fidiopath2017.wordpress.com&amp;data=02%7C01%7C%7Cbfa831bd1195440e951e08d741465813%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637049642729970277&amp;sdata=Fq6Wddqrn6RvRLO2xkmGXa5UTQK4QE3u9BqfLcNr4ck%3D&amp;reserved=0 <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fidiopath2017.wordpress.com&data=02%7C01%7C%7Ce30c1a244ced48c0749408d7415692e7%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637049712388708143&sdata=f4%2FrGZ2dlywyzI%2Fcgzb8IwYWv7tY9gMMFcd5QVgeMwA%3D&reserved=0><https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fidiopath2017.wordpress.com%2F&amp;data=02%7C01%7C%7Cbfa831bd1195440e951e08d741465813%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637049642729970277&amp;sdata=vfj%2FtMlzq7Kr%2FKnWAI1jjbPbF4cdj4Ofm4p4SEw4UvI%3D&amp;reserved=0 <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fidiopath2017.wordpress.com%2F&data=02%7C01%7C%7Ce30c1a244ced48c0749408d7415692e7%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637049712388708143&sdata=sL2cRZLJ6uq%2BEBvPTELbROzX8yjgd8oFGla6q30jXvI%3D&reserved=0>>
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