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Alan L Alan L is offline
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Join Date: Apr 2006
Location: New Zealand
Posts: 3,185
Apply some pressure to the inlet line - the one that hooks to your intercooler. There should be minimal bleed - none escaping via the outlet line , and minimal via the valve (you may loose a little via the valve guide clearance) until you hit your spring dump pressure. At which point, from memory if you remove the lower bit of the unit you can see the valve head. It should lift as you approach the spring pressure - eg 0.8, 1.0 bar - whatever.
If you are loosing gas before this point you have waste gate leakage. If you cannot pressurise it to 0.8 bar, then you have leakage. I'm assuming you have standard wategate.
Alan
Old 07-27-2008, 11:42 AM
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