How to change AC compressor shaft seal? - 63/64 Cadillac Website2024-03-28T09:23:50Zhttps://6364cadillac.ning.com/forum/topics/how-to-change-ac-compressor-shaft-seal?commentId=6543066%3AComment%3A219751&xg_source=activity&feed=yes&xn_auth=noWhen the shop filled the syst…tag:6364cadillac.ning.com,2020-07-22:6543066:Comment:2222292020-07-22T15:08:12.814ZChristian Doerkhttps://6364cadillac.ning.com/profile/Fleetwood60S
<p>When the shop filled the system with R134a it was seal.<br></br>I drove to a meeting with some friends to Austria with the AC on all the time at very warm weather and had a leak at the new shaft seal again. But probably the shop filled too much R134a. As I know <span style="text-decoration: underline;">now</span>, the system should be filled not more than 3.35 pounds.<br></br>I found a good chart here: …</p>
<p>When the shop filled the system with R134a it was seal.<br/>I drove to a meeting with some friends to Austria with the AC on all the time at very warm weather and had a leak at the new shaft seal again. But probably the shop filled too much R134a. As I know <span style="text-decoration: underline;">now</span>, the system should be filled not more than 3.35 pounds.<br/>I found a good chart here: <a href="https://ricksfreeautorepairadvice.com/convert-auto-r12-system-to-r134a/" target="_blank">https://ricksfreeautorepairadvice.com/convert-auto-r12-system-to-r134a/</a></p>
<p>So, probably the pressure is too high. I hadn't time to check it again, but I'm planning it in the next weeks.</p>
<p>I'll keep you updated</p> I took my hoses to a business…tag:6364cadillac.ning.com,2020-07-21:6543066:Comment:2222162020-07-21T17:02:23.034ZKurthttps://6364cadillac.ning.com/profile/KurtEdmiston
<p>I took my hoses to a business that rebuilds hoses.They take the fittings and splice them to new barrier rubber hose. I used my original hoses for years with the A6 compressor running R134a with no issues. I just decided to replace the 56 year old rubber hoses when I installed the new compressor. The compressor is a drop-in replacement so it works with the stock mounting & hoses. I did need a metric cap screw to attach the hose manifold to the compressor.</p>
<p>I took my hoses to a business that rebuilds hoses.They take the fittings and splice them to new barrier rubber hose. I used my original hoses for years with the A6 compressor running R134a with no issues. I just decided to replace the 56 year old rubber hoses when I installed the new compressor. The compressor is a drop-in replacement so it works with the stock mounting & hoses. I did need a metric cap screw to attach the hose manifold to the compressor.</p> In additon to my steeering pr…tag:6364cadillac.ning.com,2020-07-21:6543066:Comment:2223072020-07-21T03:40:22.620ZKim K Kaiserhttps://6364cadillac.ning.com/profile/KimKKaiser
<p>In additon to my steeering project,, i have been wanting to change the complressor on my 63 as well,, i read aobut those lighter replacemnt compressors. Mine is the original and at a minimum, the bearing is locked up,,, i had same problem on 73 and replaced the bearing,,, but this thing is 10 years older,, and i want less stress on the engine. i do miss ac too,, i can t hear my music with all the windows down,,,</p>
<p>SO,,, do you have to take the car to an ac person to unhook all…</p>
<p>In additon to my steeering project,, i have been wanting to change the complressor on my 63 as well,, i read aobut those lighter replacemnt compressors. Mine is the original and at a minimum, the bearing is locked up,,, i had same problem on 73 and replaced the bearing,,, but this thing is 10 years older,, and i want less stress on the engine. i do miss ac too,, i can t hear my music with all the windows down,,,</p>
<p>SO,,, do you have to take the car to an ac person to unhook all those hoses..and do you have to ge t anothe kit of some sort to hook up the new hoses that have the new refriderant..i have read they have gases and pressure,,,so what is the best way to go bout that</p> I did a lot of research when…tag:6364cadillac.ning.com,2020-05-22:6543066:Comment:2197712020-05-22T21:03:38.712ZKurthttps://6364cadillac.ning.com/profile/KurtEdmiston
<p>I did a lot of research when I decided to upgrade my compressor. I have had other cars with A6 compressors in the past that leaked oil from the shaft seal running R12 and mineral oil. My research showed it was a common problem and there is supposedly an upgraded shaft seal that helps <a href="http://www.v8buick.com/index.php?threads/a6-compressor-shaft-seal-replacement.134625/">http://www.v8buick.com/index.php?threads/a6-compressor-shaft-seal-replacement.134625/</a>. The seal is available if…</p>
<p>I did a lot of research when I decided to upgrade my compressor. I have had other cars with A6 compressors in the past that leaked oil from the shaft seal running R12 and mineral oil. My research showed it was a common problem and there is supposedly an upgraded shaft seal that helps <a href="http://www.v8buick.com/index.php?threads/a6-compressor-shaft-seal-replacement.134625/">http://www.v8buick.com/index.php?threads/a6-compressor-shaft-seal-replacement.134625/</a>. The seal is available if you want to try it. <a href="https://www.ebay.com/itm/AC-GM-Compressor-Lip-Shaft-Seal-R4-V5-HD6-HR6-HR6HE-DA6-HT6-A-C-DOUBLE-LIP-14MM-/172899986775">https://www.ebay.com/itm/AC-GM-Compressor-Lip-Shaft-Seal-R4-V5-HD6-HR6-HR6HE-DA6-HT6-A-C-DOUBLE-LIP-14MM-/172899986775</a></p>
<p>I just decided that I wanted the benefits of a modern compressor (less weight, less drag, designed for R134a, etc) and it is a drop in replacement for the A6.</p>
<p>The part Tony mentioned is called an STV eliminator kit which converts to system to a clutch cycling system <a href="https://www.oldairproducts.com/product/50-2503-stv-eliminator-kit">https://www.oldairproducts.com/product/50-2503-stv-eliminator-kit</a>.</p>
<p>I did not install the STV eliminator kit on my car. I was getting very good performance after converting the system to R134a with the A6 compressor but got tired of the oily mess from the shaft seal.</p>
<p>Now with the new compressor (<span>10PA20HD)</span> I'm getting great performance and no oily mess. One other addition I made for the upgrade is to install a pusher fan in front of the condenser. This helps lower the pressure on the high side. Another option is to install a high density condenser.</p>
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<p>To Mark's point, the system was designed for R12. Life is simpler if you have access to R12. If you don't, the system can be converted if you take the proper steps.</p> TA-Motor is recommending a re…tag:6364cadillac.ning.com,2020-05-22:6543066:Comment:2196952020-05-22T20:49:52.376Z24ro8f5mbs2jchttps://6364cadillac.ning.com/xn/detail/u_24ro8f5mbs2jc
<p><a href="https://www.tamotor.se/produkt/pafyllnings-kit-air-condition/" rel="noopener" target="_blank">TA-Motor</a> is recommending a recharge-kit from <a href="https://youtu.be/qOypOqDfuQ4" rel="noopener" target="_blank">Duracool</a>. I was planning to buy a kit and a new drier/accumulator and try it on my car. But now when reading about the leaking compressor I think that would be a waste of money. Guess the best plan of action is to replace the compressor and drier and then have the…</p>
<p><a href="https://www.tamotor.se/produkt/pafyllnings-kit-air-condition/" target="_blank" rel="noopener">TA-Motor</a> is recommending a recharge-kit from <a href="https://youtu.be/qOypOqDfuQ4" target="_blank" rel="noopener">Duracool</a>. I was planning to buy a kit and a new drier/accumulator and try it on my car. But now when reading about the leaking compressor I think that would be a waste of money. Guess the best plan of action is to replace the compressor and drier and then have the system vacuum tested before refilling with whatever is available.</p>
<p>Another supplier for parts in Europe is <a href="https://www.hansenkatalogen.se/en-US/Hansenracing/Startsida.aspx#/car/code/dd1/4/696/35/1380/CL0064/class1000" target="_blank" rel="noopener">Hansen Racing</a>. Seems a bit cheaper when comparing to TA.</p> Never heard of it!tag:6364cadillac.ning.com,2020-05-22:6543066:Comment:2196922020-05-22T20:08:46.236ZChristian Doerkhttps://6364cadillac.ning.com/profile/Fleetwood60S
<p>Never heard of it!</p>
<p>Never heard of it!</p> We haven't R12 in Australia f…tag:6364cadillac.ning.com,2020-05-22:6543066:Comment:2198322020-05-22T18:11:00.472Z2o93f8rdftyzjhttps://6364cadillac.ning.com/xn/detail/u_2o93f8rdftyzj
<p>We haven't R12 in Australia for ages now.</p>
<p>Three years ago I gassed up on R437A, that's now gone and R413A is the next one and its hard to get now. I think i'm going to end up with R134A when I change the compressor later in the year. But, I have got 6 degrees Celsius at the vents at the moment.</p>
<p>We haven't R12 in Australia for ages now.</p>
<p>Three years ago I gassed up on R437A, that's now gone and R413A is the next one and its hard to get now. I think i'm going to end up with R134A when I change the compressor later in the year. But, I have got 6 degrees Celsius at the vents at the moment.</p> Lucky boy :)tag:6364cadillac.ning.com,2020-05-22:6543066:Comment:2197652020-05-22T13:48:31.355ZChristian Doerkhttps://6364cadillac.ning.com/profile/Fleetwood60S
<p>Lucky boy :)</p>
<p>Lucky boy :)</p> Hi Mark,
they are all filled…tag:6364cadillac.ning.com,2020-05-22:6543066:Comment:2195942020-05-22T05:19:56.084ZChristian Doerkhttps://6364cadillac.ning.com/profile/Fleetwood60S
<p>Hi Mark,</p>
<p>they are all filled with R134a but with mineral oil? Or do they still run all with R12? R12 is absolutely impossible to get or refilled here in Germany. </p>
<p>Hi Mark,</p>
<p>they are all filled with R134a but with mineral oil? Or do they still run all with R12? R12 is absolutely impossible to get or refilled here in Germany. </p> I think i heard, some gases w…tag:6364cadillac.ning.com,2020-05-22:6543066:Comment:2197512020-05-22T03:53:41.248Z2o93f8rdftyzjhttps://6364cadillac.ning.com/xn/detail/u_2o93f8rdftyzj
<p>I think i heard, some gases will eat the seals over time.</p>
<p>I might have to upgrade to a newer style compressor.</p>
<p>I think i heard, some gases will eat the seals over time.</p>
<p>I might have to upgrade to a newer style compressor.</p>