Leak detector kits

oilboy123

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Everett, Washington
 Originally Posted By: tom slick
are you looking at the fluor. dye and black light kits?
Exactly......I was under the impression that they will work for normal lubes as well as coolant. I have seen them in JC Whitney, Autozone ect.
 
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Central Coast, Calif.
They are cheap enough that they are worth a try. As AcuraTech mentioned, cleaning everything really well and watching for leaks should be the first attempt. Another way to look for leaks is a clean spot where everything around is dirty. Coolant leaks will often show up this way.
 
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Chicago Area
Since you should clean the suspected areas first anyway, that is probably all you need to do. Then, a little flour or talcum dust can help trace a leak. But the kits work OK.
 
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snowblind in TX
Every once in awhile a dye kit will save your butt. Usually they aren't needed.................until you need it. I had one oil leak that turned out to be caused by a bad block casting (porosity) that almost killed a paycheck. I would have never found it without that UV dye. If you do use UV dye, get a little AA/AAA flashlight with a UV LED. It is a great timesaver and fits everywhere larger lights don't.
 

oilboy123

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Everett, Washington
I have a coolant leak on my Dad's Caravan that never shows any coolant leaking anywhere. I will try harder to track it down this weekend. If unsuccessful I might buy a leak kit. I do notice that the system is not pressurizing, so the rad cap is one of the first things I am looking at. It was replaced a year ago though. Thanks for the input.
 

Kestas

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The Motor City
I don't think you need UV dye in coolant. I find that the black light lights up coolant the same as a fluid with UV dye in it. This cause me all kinds angst once when I was looking for a possible a/c compressor leak, and the clutch was sitting under the water pump weep hole.
 
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Toronto, Canada
You can pressurize the cooling system thru the overflow tube. Easiest done with compressed air and a pressure regulator set to about 13psi. Very useful for detecting cooling system leaks.
 

oilboy123

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Everett, Washington
 Originally Posted By: George7941
You can pressurize the cooling system thru the overflow tube. Easiest done with compressed air and a pressure regulator set to about 13psi. Very useful for detecting cooling system leaks.
Yes this is what I have done before. I had a little black light for pet accidents. It up and vanished. I notice the system is not coming up to pressure as well. The cap is one years old. I will try the cap off another vehicle. I think I will pressurize it and see if I can find a leak before I worry about chasing things down with a black light.
 
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Sunny Calif
I used the dye to find a water pump leak before. I also used a $8 actinic bulb (for marine aquariums) and installed it in a $6 portable fluorescent light fixture. It's brighter than those LED pens. A black light would work fine too
 
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