AC leak in fuel cooler
#1
12-10-2014 | 09:01 AM
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From: Sarasota, FL
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AC leak in fuel cooler
The air conditioning on my Evo GT 660 tuned 996 TT has been leaking for some time. My mechanic, Mickey Kramer of European Performance in St. Pete, FL, has found the leak to be in the fuel cooler, allowing the freon to leak into the fuel.They originally could not find the leak because it is an internal leak. It looks like the compressor has been damaged, as well. Maybe we have fuel leaking into the AC system.
Fuel coolers are apparently not available in the US so I am waiting for one from Germany. Has anyone experienced this problem and can give advice as to the solution?
Fuel coolers are apparently not available in the US so I am waiting for one from Germany. Has anyone experienced this problem and can give advice as to the solution?
#2
12-10-2014 | 09:19 AM
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Joined: Jun 2009
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From: Livermore, CA
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That's a pretty rare place for the fuel system and the A/C system to leak, but of course anything is possible.
If you trust the mechanic who made the diagnosis then relax until the new cooler arrives. (The fact the fuel cooler has to come from Germany I think one can possibly infer how rare it is for a cooler to leak.)
Once the new cooler is installed, and maybe the dryer replaced, the A/C system will have to be evacuated and left under a vacuum for a while -- I think the time the system is subjected to a vacuum has been increased to 1 hour but the shop ought to know -- to remove all the refrigerant and any moisture or even fuel that managed to get into the system.
Beyond that, really fuel in the A/C system is so rare, I'm not sure what else might need replacing or if the system needs some kind of flushing to remove any residual fuel from the inner surfaces of the A/C system.
Anyhow, the system is refilled with refrigerant and however much compressor oil was removed to ensure the system has the necessary amount of compressor then the system tested.
If you trust the mechanic who made the diagnosis then relax until the new cooler arrives. (The fact the fuel cooler has to come from Germany I think one can possibly infer how rare it is for a cooler to leak.)
Once the new cooler is installed, and maybe the dryer replaced, the A/C system will have to be evacuated and left under a vacuum for a while -- I think the time the system is subjected to a vacuum has been increased to 1 hour but the shop ought to know -- to remove all the refrigerant and any moisture or even fuel that managed to get into the system.
Beyond that, really fuel in the A/C system is so rare, I'm not sure what else might need replacing or if the system needs some kind of flushing to remove any residual fuel from the inner surfaces of the A/C system.
Anyhow, the system is refilled with refrigerant and however much compressor oil was removed to ensure the system has the necessary amount of compressor then the system tested.
#4
12-10-2014 | 11:29 AM
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Joined: Mar 2008
Posts: 2,807
From: Montreal Canada
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Wow this is a new failure! I've never heard of this kind of problem before! There was a discussion not long time ago about removing this unit and replace it with the ROW piping which does not have the cooler…Little info here: https://www.6speedonline.com/forums/...-delete-2.html
#5
12-10-2014 | 02:09 PM
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Wow this is a new failure! I've never heard of this kind of problem before! There was a discussion not long time ago about removing this unit and replace it with the ROW piping which does not have the cooler…Little info here: https://www.6speedonline.com/forums/...-delete-2.html
#6
12-10-2014 | 04:46 PM
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Posts: 5,551
From: tn
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That's a pretty rare place for the fuel system and the A/C system to leak, but of course anything is possible.
If you trust the mechanic who made the diagnosis then relax until the new cooler arrives. (The fact the fuel cooler has to come from Germany I think one can possibly infer how rare it is for a cooler to leak.)
Once the new cooler is installed, and maybe the dryer replaced, the A/C system will have to be evacuated and left under a vacuum for a while -- I think the time the system is subjected to a vacuum has been increased to 1 hour but the shop ought to know -- to remove all the refrigerant and any moisture or even fuel that managed to get into the system.
Beyond that, really fuel in the A/C system is so rare, I'm not sure what else might need replacing or if the system needs some kind of flushing to remove any residual fuel from the inner surfaces of the A/C system.
Anyhow, the system is refilled with refrigerant and however much compressor oil was removed to ensure the system has the necessary amount of compressor then the system tested.
If you trust the mechanic who made the diagnosis then relax until the new cooler arrives. (The fact the fuel cooler has to come from Germany I think one can possibly infer how rare it is for a cooler to leak.)
Once the new cooler is installed, and maybe the dryer replaced, the A/C system will have to be evacuated and left under a vacuum for a while -- I think the time the system is subjected to a vacuum has been increased to 1 hour but the shop ought to know -- to remove all the refrigerant and any moisture or even fuel that managed to get into the system.
Beyond that, really fuel in the A/C system is so rare, I'm not sure what else might need replacing or if the system needs some kind of flushing to remove any residual fuel from the inner surfaces of the A/C system.
Anyhow, the system is refilled with refrigerant and however much compressor oil was removed to ensure the system has the necessary amount of compressor then the system tested.
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