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930turbo 930turbo is offline
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Join Date: Jul 2006
Location: Valrico Florida
Posts: 199
The shuttle valve - or recirculating valve - has nothing the do with regulating air flow through the intercooler. It also should remain fully closed when at rest like the wastegate. Manifold vacuum pulls the valve open, it could be hanging up in the bore when the valve body is cool - if this is in fact the culpret. Be careful if it is hanging open as this will allow the turbo to free-spool and could overspeed to the point of distruction.
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'77 930 turbo Garretson I/C 1 BAR spring, (2) '82 Triumph Bonneville Royal Wedding Edition
Past rides: '74 914 1.9 liter twin plugged track car, '83 928S, '87 924S, '75 911S w '78 ROW 3.0, '72 911T, '70 911T and various other insignificant domestic examples. Happiness is a grey tailpipe! Turbo lag......it's worth the wait!
Old 06-11-2008, 07:05 AM
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