Re: GT35R questions?
So after talking with a rep from Forced Performance, he stated that the odds of the turbo being blown with no shaft play is slim to none. He said alot of time what they see is the backpressure in the crankcase can actually force against the oil in the drain tube, similiar to blowing out the dipstick, and fight the pressure of the oil coming down and give the appearance of a blown seal. He also stated that the oil seals in these turbos are much like piston rings, where they don't have a soft type seal to blow. There is a few thousandths of tolerance that can be overcome by oil if it is being pushed back up the drain tube. On their cars, they will run -10 AN lines from the valve cover to the intake, through a catch can, to help combat this. He said the 3/8 line currently run is not large enough to help evacuate the pressure. Sounds like I need to do a leakdown test, but how does this sound to anyone else?
|