A/c compressor
Thread Starter
Racer
Joined: Mar 2021
Posts: 413
Likes: 62
From: UAE
A/c compressor
Seems that I’m not lucky with compressors:
1. one on vehicle, original, hadn’t worked
2. bought original / ac delco - it burned up upon connection;
3. Bought Delphi - and it worked since, about 1.5 years - now dead.
4. Ordered A-premium from Amazon now - got “order cancelled by the seller” in a week.
Need forum wisdom to decide what brand to buy and where, as I see nothing else in Amazon and vendors I use for new items (Rockauto and Summit). Not sure that ready to rely on preowned one from eBay…
thanks in advance.
1. one on vehicle, original, hadn’t worked
2. bought original / ac delco - it burned up upon connection;
3. Bought Delphi - and it worked since, about 1.5 years - now dead.
4. Ordered A-premium from Amazon now - got “order cancelled by the seller” in a week.
Need forum wisdom to decide what brand to buy and where, as I see nothing else in Amazon and vendors I use for new items (Rockauto and Summit). Not sure that ready to rely on preowned one from eBay…
thanks in advance.
Last edited by Castor; Oct 31, 2023 at 11:40 PM.
Pro
Joined: Dec 2014
Posts: 683
Likes: 275
From: Cincinnati Ohio
Seems that I’m not lucky with compressors:
1. one on vehicle, original, hadn’t worked
2. bought original / ac delco - it burned up upon connection;
3. Bought Delphi - and it worked since, about 1.5 years - now dead.
4. Ordered A-premium from Amazon now - got “order cancelled by the seller” in a week.
Need forum wisdom to decide what brand to buy and where, as I see nothing else in Amazon and vendors I use for new items (Rockauto and Summit). Not sure that ready to rely on preowned one from eBay…
thanks in advance.
1. one on vehicle, original, hadn’t worked
2. bought original / ac delco - it burned up upon connection;
3. Bought Delphi - and it worked since, about 1.5 years - now dead.
4. Ordered A-premium from Amazon now - got “order cancelled by the seller” in a week.
Need forum wisdom to decide what brand to buy and where, as I see nothing else in Amazon and vendors I use for new items (Rockauto and Summit). Not sure that ready to rely on preowned one from eBay…
thanks in advance.
It sounds like you have a condition from your first original failed compressor that was not corrected with compressor number 2 and also led to a short life for compressor number 3. Whether it was a loss of charge, internal contamination, excessive high side pressure, or whatever else, if its not corrected with number 4 you can expect another early failure.
I have not seen anyones V7 copy so I have no knowledge about their quality and reliability. I do have personal experience with the Delphi V7 and know the design and development work that went into it. When I realized last year that Delphi stopped making service compressors for the C5, I searched and searched to find one still on someones shelf and bought it. The body o-rings are a design weakness and my 24 year old V7 is showing a bit of weepage so I will get around to replacing it one of these days.
There are still some NOS V7’s for sale that have been sitting on a shelf since 2004. There may also be newer Delphi service compressors out there too. As long as they have remained sealed and stored under reasonable warehouse conditions, they should good.
You should note that the service instructions ask you to rotate the compressor by hand. This is needed to get oil onto all the internal surfaces.
Race Director
Joined: Oct 2004
Posts: 12,864
Likes: 4,667
It sounds like you have a condition from your first original failed compressor that was not corrected with compressor number 2 and also led to a short life for compressor number 3. Whether it was a loss of charge, internal contamination, excessive high side pressure, or whatever else, if its not corrected with number 4 you can expect another early failure.
I have not seen anyones V7 copy so I have no knowledge about their quality and reliability. I do have personal experience with the Delphi V7 and know the design and development work that went into it. When I realized last year that Delphi stopped making service compressors for the C5, I searched and searched to find one still on someones shelf and bought it. The body o-rings are a design weakness and my 24 year old V7 is showing a bit of weepage so I will get around to replacing it one of these days.
There are still some NOS V7’s for sale that have been sitting on a shelf since 2004. There may also be newer Delphi service compressors out there too. As long as they have remained sealed and stored under reasonable warehouse conditions, they should good.
You should note that the service instructions ask you to rotate the compressor by hand. This is needed to get oil onto all the internal surfaces.
I have not seen anyones V7 copy so I have no knowledge about their quality and reliability. I do have personal experience with the Delphi V7 and know the design and development work that went into it. When I realized last year that Delphi stopped making service compressors for the C5, I searched and searched to find one still on someones shelf and bought it. The body o-rings are a design weakness and my 24 year old V7 is showing a bit of weepage so I will get around to replacing it one of these days.
There are still some NOS V7’s for sale that have been sitting on a shelf since 2004. There may also be newer Delphi service compressors out there too. As long as they have remained sealed and stored under reasonable warehouse conditions, they should good.
You should note that the service instructions ask you to rotate the compressor by hand. This is needed to get oil onto all the internal surfaces.
Last edited by grinder11; Nov 4, 2023 at 03:11 PM.
Drifting
Joined: Sep 2022
Posts: 1,787
Likes: 2,041
From: In the woods
2024 C5of the Year Finalist - Unmodified
I just went through this. First compressor grenaded and was replaced. That one seized up on the freeway, this time all components were replaced except the evaporator. Shop used a Four Seasons compressor, so far so good. The second shop also said the replacement compressor most likely failed due to contaminants in the system from the first compressor failure.
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Thread Starter
Racer
Joined: Mar 2021
Posts: 413
Likes: 62
From: UAE
Thread Starter
Racer
Joined: Mar 2021
Posts: 413
Likes: 62
From: UAE
Race Director
Joined: Oct 2004
Posts: 12,864
Likes: 4,667
Pro
Joined: Dec 2014
Posts: 683
Likes: 275
From: Cincinnati Ohio
You will find multiple Youtubes for compressor replacement. Some remove the water pump, some drop the cradle slightly, possibly other methods too.
The attached file may help you decide. It’s author did an excellent write up.
Given your compressor failure history, you’ve received advice to replace components and flush what remains. This will leave your system free of oil so you will need a full charge. For a Delphi V7, it is 9 ounces I believe. Four Seasons should provide information for their quantity requirement. Additionally, Four Seasons should specify the type/brand name (as Grinder noted, all R134a systems use a PAG oil) and state whether or not the compressor is filled with a full system charge or not.
The attached file may help you decide. It’s author did an excellent write up.
Given your compressor failure history, you’ve received advice to replace components and flush what remains. This will leave your system free of oil so you will need a full charge. For a Delphi V7, it is 9 ounces I believe. Four Seasons should provide information for their quantity requirement. Additionally, Four Seasons should specify the type/brand name (as Grinder noted, all R134a systems use a PAG oil) and state whether or not the compressor is filled with a full system charge or not.