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Pressure testing Cooling system

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Old 26-08-2012, 08:21 PM
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Rob Virgo
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Default Pressure testing Cooling system

Any kits out there for finding leaks in cooling system ,losing water at a fair rate but can't find it , recon theirs a pin hole in rad as steam blows out when fans start. I want to confirm before stripping parts
Old 26-08-2012, 08:28 PM
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mechanic28
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i got a blue point one which is really good mind you it is expensive to buy just you use once lol just take of the fans easy on a sapp cossie then you will be able to see any damage
Old 26-08-2012, 08:38 PM
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Brendan
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Sykes Pickavant make a good one! pick them up on eBay too!

you can improvise by using a compressor set to about 3 bar and a modified screw top water cooling system! drill a hole to plum an adapter into the middle of the screw cap then pressure the system to about 45 50 psi using the gauge on the compressor then watch where the water comes out! DO not try pressuring to much as you can cause problems! I am sure somone else on here will be able to give you some more advice! If you are stuck to start PM me!

If in any doubt use some food colouring to make it a really strong colour! Remember to flush it all out!

good luck.
Old 26-08-2012, 09:25 PM
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stevieturbo
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I certainly wouldnt be pumping 50psi into a system designed to run at 15-20psi.

You risk blowing hoses, heater matrix and the radiator.

I cant imagine an external leak being that hard to find, especially if as you say it is going at a fair rate.

Park it up let the engine run and watch for the leak. Of course, it could be internal too.
Old 27-08-2012, 12:15 AM
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Rob Virgo
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Was thinkin 50 psi might be a bit much...lol

Will check those brands online, cheers
Old 27-08-2012, 06:27 PM
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Brendan
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You can use a tyre to drive the pressure too! this whay you can limit the pressure more easily!
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