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Pressure testing with OFN kit

540itouring on Fri February 27, 2009 2:58 PM User is offline

Hi , i have retro fitted a system to a ford Ka and have vacced it for a short time and does not look like it leaks. To be sure i now have a oxygen free nitrogen test kit with three guages on it. Please could you advise me of what are safe testing pressures that should be sued to preeesre test a empty car ac system . I would also like to know how to test for leaks with OFN in the system. I would think that the best is a foam spray of some type or do they make good electronic detectors for detecting OFN ?

Thanks for all your help in advance

Karl Hofmann on Fri February 27, 2009 3:04 PM User is offlineView users profile

I normally use between 120 and 150psi..... NO MORE than 200psi.... And yes the best way is to use a leak spray, though you could pressurise the system with a little R134a in it so that you can use your electronic sniffer.

FORD KA??????? Why????

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Never knock on deaths door... Ring the doorbell and run away, death really hates that!

540itouring on Fri February 27, 2009 3:27 PM User is offline

Quote
Originally posted by: Karl Hofmann
I normally use between 120 and 150psi..... NO MORE than 200psi.... And yes the best way is to use a leak spray, though you could pressurise the system with a little R134a in it so that you can use your electronic sniffer.



FORD KA??????? Why????

The ford Ka was just to be a runabout but i like it so much i have added leather trim and now aircon. My other two cars are bmw 540 and a jag xjr6 so they have all the toys so i miss them !

Edited: Fri February 27, 2009 at 3:28 PM by 540itouring

Karl Hofmann on Fri February 27, 2009 3:53 PM User is offlineView users profile

Ha! My sis has a Ka3 with leather and aircon and she loves the ugly little thing but they are a pain to work on

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Never knock on deaths door... Ring the doorbell and run away, death really hates that!

TRB on Fri February 27, 2009 4:08 PM User is offlineView users profile

Nice, even the web images are small or is this the full size version?



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Edited: Fri February 27, 2009 at 4:08 PM by TRB

Karl Hofmann on Fri February 27, 2009 7:17 PM User is offlineView users profile

Ha! that has been enlarged... To be fair, when the Ka was introduced, the car delivery drivers did our best to be the first to flip one on to it's roof but they are a very stable little car with a very rugged and well proven little engine

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Never knock on deaths door... Ring the doorbell and run away, death really hates that!

540itouring on Sat February 28, 2009 1:14 PM User is offline

These are a great cat , fun to drive and cheap to run with lots of spares on ebay and also uses alot of fiesta parts. The Endura E engine comes from the 1960s and all power is from lov revs and no cam belt to replace !. I like big engine cars and stil own a 4.0L supre charged jag and a 4.4L V8 bmw but the Ka is a great car for work etc and reliable. I need to add more wires before the aircon can be tested so need to spend another few days on this project. All people who has ever driven a Ka will confirm that they are great , fun and cheap cars.

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