Naked Buell Posted February 28, 2017 Share Posted February 28, 2017 I have seen a lot of you guys talking about it. Can someone explain that? Quote Link to comment Share on other sites More sharing options...
87subbomber Posted February 28, 2017 Share Posted February 28, 2017 never heard of a water leakdown test,are you talking about a cylinder leakdown test? Quote Link to comment Share on other sites More sharing options...
turbosubarubrat Posted February 28, 2017 Share Posted February 28, 2017 You use a tester that replaces your radiator cap and you pressurize the system by pumping in air. The tester has a gauge on it so you can tell whether your loosing coolant or not. Quote Link to comment Share on other sites More sharing options...
nicksubaru Posted February 28, 2017 Share Posted February 28, 2017 Thats cool. I didn't know those exist. I always just checked and looked for water leaks. Or even steam. Quote Link to comment Share on other sites More sharing options...
DaveT Posted February 28, 2017 Share Posted February 28, 2017 sometimes that will work. Sometimes leaks only happen when hot, sometimes only when cold. It won't find the tiny pinhole head gasket beginning failure. But it will make some ordinary leaks easier to find. Quote Link to comment Share on other sites More sharing options...
Naked Buell Posted February 28, 2017 Author Share Posted February 28, 2017 Ohhhhhh. That makes sense. Thx Quote Link to comment Share on other sites More sharing options...
ivantruckman Posted February 28, 2017 Share Posted February 28, 2017 most small head gasket leaks will happen only at full operating temperature as Subaru nut says Quote Link to comment Share on other sites More sharing options...
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