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Discussion Starter · #1 ·
hi new to the forum
i recently bought a copper s turbo
having pulled the engine to do the clutch turbo and timing chain i now have a massive vacuum which can be felt on the oil cap, i have a suspicion its something to do with the manifold pipe at the rear of the valve cover, i cleaned out the soot carbon at the valves when i had the engine on the bench,
Help please !
 

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they all have a lot of crankcase pressure also will find when remove cap it misfires a tad as ecu and maff have a moment, the pcv pipe at rear goes in to rocker cover and has a valve that closes and opens pending on pos or neg inlet pressures on and off the gas pedal
 
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