Celica St185 Rc Bov Blowing Oil

[shabzgt4rc]

hi while driving my celica gt4 today i noticed oil spraying out the bov on gear change also smokes a little..i took all the intercooler pipes off and noticed oil in the charge cooler system and the inlet manifold.

once warm sounds a little ruff but no knocks or bangs drives well holds boost through the gears also has a steel head gasket upgrade no oil mix what so ever.my mechanic told me its the turbo but not so sure as its still new hybrid ct26 any info would be apreciated thanks...

[thomasst185]

thought there was a double waste gate on the ct26`s

[Leeky]

thought there was a double waste gate on the ct26`s

No. They've only ever come with a single wastegate.

Are you confusing it with "Twin Entry" that you get on the later CT26 on the Rev3 engine? (ST205)

Anyway, back to the problem. Oil coming out the dump valve could be a dead turbo seal, a blocked/damaged breather pipe or a piston ring failure.

If its a LOT of oil then its unlikely to be the breather in my opinion. And if you say its a recently new rebuilt turbo then i'd start by getting the compression checked on all the cylinders. Ringland failure is a common 3SGTE issue on cars that have been poorly maintained or are running higher boost without supporting cooling mods.

How long since you're last oil change and how often do you change it?

To put it into perspective, i change my oil every 3000 miles and i use Toyota or Millers Oil.

Also is the car standard? If not how much boost are you running?