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Alan L Alan L is offline
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Join Date: Apr 2006
Location: New Zealand
Posts: 3,261
Chris, I suspect there is no point without overlap on at least one cylinder. I have yet to presssurise it without something flowing out the exhaust. (my leakdown numbers are good -2-3% on all). The pressure drops as soon as I cut the gas flow. Does anyone manage to pressurise the system and hold it statically?.
The boost gauge does not move a jot, even when I pressurise to 14 psi.
It is holding a lot more pressure than before (but I have also blocked the exhaust off). My compressor could only produce about 5 psi running flat out before I pulled the motor. But I am sure the boost gauge was responding at that time. Now when I hooked the compressor on I had to shut it down almost instantly - even tho it was dialled right back - it wanted to over pressurise. So, I run a gas bottle to pressurise with a fairly low flow - which suggests minimal leaks - but the boost gauge does not move. Is this weird?
How do others do this test?
Old 04-16-2008, 05:51 PM
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