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Detecting miniscule coolant leaks with a cold Uno
Published by Louie Bee
07-05-2006
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Talking Detecting miniscule coolant leaks with a cold Uno

Hi All .

As I suggested on my MK1 thread, I have been working on the MK2 Turbo. Its been loosing coolant, even after paying a local garage to fix it . Due to the state they left my UT in after the last visit, I decided never to use them ever again (or go back to let them finish the job as they requested).

So, A colleague was kind enough to lend me his coolant pressure testing kit. It works by increasing the pressure on a cold system. In essence, itís an air pump and a pressure gauge which attaches to the radiator expansion / header tank. You pump to increase the pressure of the air gap at the top of the coolant, thus increasing the pressure on the whole system.

This simulates what happens at full operating temperature. The difference is that water will be pushed out of any hole in liquid form, not steam, allowing you to locate the smallest of leakleaks when steam may not be visable (if its external).

Unfortunately, the borrowed tester is past its best. I couldnít get it to seal. My colleague outlined that there is another way to do this, which Iíll share with you

Thanks Ucof thanked for this post
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Old 07-05-2006   #1
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Quote Originally Posted by Louie Bee
...Iím off to finish the job ....
O no i'm not... it's raining .
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Old 07-05-2006   #2
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Re: Cold Uno

lol,good guide though louie
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Old 07-05-2006   #3
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Re: Detecting miniscule coolant leaks with a cold Uno

nicely done, kudos to the bee....
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Old 07-05-2006   #4
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Re: Detecting miniscule coolant leaks with a cold Uno

Nice one my friend - and well done for following all the "Guide" guidelines
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Old 09-05-2006   #5
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Re: Detecting miniscule coolant leaks with a cold Uno

Excellent!
I'd never seen a Guide before.

So... break the suspense... where were the leaks?

-Alex
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Old 09-05-2006   #6
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Thnks Alex!

Youíve never seen your own guide ...

I must have forgot to ask when I nicked it .

The Leak,
Well after a rainy afternoon Sunday, and an evening fitting a vacuum advance diaphragm to the 1.0 IE, yesterday, this evening, I was under the MK2 Turbo once again.

All I can say it the engine and bay are looking cleaner . I havenít got to the back yet . I will keep you all informed .

Regards All,
Louie Bee.
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