Thread: boost bleed off
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Alan L Alan L is offline
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Join Date: Apr 2006
Location: New Zealand
Posts: 3,562
I am thinking maybe the lack of this damper - if that is what it is- may have been the cause of the violent air plate spasms. I have yet to identify the reason. But the CIS system seems sensitive to them with the large air plate, and very fine control arm movements. This apparatus seems unique to the turbo tho - but then the turbo would suffer the most violent intake manifold pressure fluctuations. So, it may not be directly related to the BOV, but rather something to moderate the boost/off boost pressure surges in the intake system.
My engine is also lacking the stopper over the air plate (on order). This may not have helped either. The new fuel head piston has certainly improved things, but the odd minor spasm still occurs - which eventually corrects itself (most obvious coming onto the idle). An extra bit of intake damping maybe what is required.
Old 12-20-2007, 06:09 PM
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