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cooter
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perth
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October 2004
aircon oil cooler Sat, 12 March 2005 08:37 Go to next message
hey guys not sure and its not really important but would a 2tgeu air con oil cooler work as a normal oil cooler if i got a sandwich plate and appropriate lines??
cheers
craig
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draven
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Re: aircon oil cooler Sat, 12 March 2005 08:52 Go to previous messageGo to next message
air con doesn't run oil, in runs gas (compressed into liquid form). and if I were you I'd just get a $50 second hand oil cooler from a wreckers, as every air conditioning condenser I've seen is too big to be an oil cooler, and I'd be willing to bet you'd end up spending more modding an air-con condenser
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Toobs
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Re: aircon oil cooler Sat, 12 March 2005 14:30 Go to previous messageGo to next message
draven wrote on Sat, 12 March 2005 19:52

air con doesn't run oil, in runs gas (compressed into liquid form). and if I were you I'd just get a $50 second hand oil cooler from a wreckers, as every air conditioning condenser I've seen is too big to be an oil cooler, and I'd be willing to bet you'd end up spending more modding an air-con condenser


There is oil in your aircon line... mixed in with the refridgerant.

The condenser isn't there to cool the oil in the aircon system though its there to cool the low pressure side of your aircon system before it re-enters your compressor.

I think you will find that it is not economically viable to modify the condenser to use it as an oil cooler.
Add to that it is designed for far thinner liquid (oil + refridgerant) which is far cleaner than your crankcase oil would be after a couple of thousand kms... I would think that crankcase oil would clog it up quite quickly.
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thechuckster
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February 2003
 
Re: aircon oil cooler Sun, 13 March 2005 02:52 Go to previous messageGo to next message
aircon condensors and auto trans coolers will not flow enough oil to suit engine oil cooling.

If the stock oil cooler simply dumps oil to the sump - and i think the mteu and similar blocks do this - then you could get away with using a trans cooler.

but if you're using a sandwich adaptor plate you will need a proper full-flow cooler.
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Cyber-punk
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February 2003
 
Re: aircon oil cooler Sun, 13 March 2005 05:07 Go to previous message
Toobs wrote on Sun, 13 March 2005 00:30

draven wrote on Sat, 12 March 2005 19:52

air con doesn't run oil, in runs gas (compressed into liquid form). and if I were you I'd just get a $50 second hand oil cooler from a wreckers, as every air conditioning condenser I've seen is too big to be an oil cooler, and I'd be willing to bet you'd end up spending more modding an air-con condenser


There is oil in your aircon line... mixed in with the refridgerant.

The condenser isn't there to cool the oil in the aircon system though its there to cool the low pressure side of your aircon system before it re-enters your compressor.

I think you will find that it is not economically viable to modify the condenser to use it as an oil cooler.
Add to that it is designed for far thinner liquid (oil + refridgerant) which is far cleaner than your crankcase oil would be after a couple of thousand kms... I would think that crankcase oil would clog it up quite quickly.


Actually, it cools the gas on the high pressure side of the system into a liquid form before it enters the low side of the system via the metering device. What you are referring to is the evaporator which is responsible for removing heat content from the desired area. But thats not the point.

I doubt that the condensor would be suitable(as others have stated). Even though there is oil mixed with the refrigerant its almost like water, it has pretty low viscosity.

[Updated on: Sun, 13 March 2005 05:10]

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