To keep the vane chamber clean in the future, experienced members suggest that the
engine be revved up almost to the r
ed line at least once each day, simply referred to as
an “Italian tune-up.” The other advice is to “drive it like you stole it!” This puts a lot of
hot exhaust gas through the chamber area and will burn out the carbon. I started doing
this after my 3rd
turbo removal, and when I inspected the vane assembly and machined
backing plate on the 4
th
turbo removal, both were bright and clean. From new until the
car had 78,000 miles on it when the turbo failed, I never revved the engine over 3200
rpm. I was tr
eating it like a Detroit product. That kind of driving is an invitation to
carbon fouling. Rev the motor up daily! It is German made, and not only can take it, but
needs it!
