[V8] Spectral analysis V8 ABH and PT blocks
NIck Miller
chance9121 at gmail.com
Fri Dec 11 06:34:59 PST 2009
What ever happened to the Fella who changed piston rings and managed to
reduce his oil consumption significantly? Almost always the two key
factors, unless the vehicle has a turbo charger(kommpressor), are either
valve seals or piston rings. It stands to reason that since this is one of
Audi's first aluminum blocks, and they used an incredibly hard material for
the block, that they may have not realized the rings wouldn't hold up. Even
in my Miata, the factory ductile iron rings are garbage and when running a
turbo you get blowby and high oil consumption.
My question would be how the rings, particularly the oil control ring, are
doing after high mileage. As well, you can get good compression and
terrible oil consumption through rings at the same time. Even you can get
good <5% leak down numbers and still have oil consumption.
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