“New” 914 smokes out exhaust after hard left hand turn. Ideas? Options

[Tdskip]

Happy Sunday folks, hope it’s been a good weekend so far.

Got the shifter squared away, I’ll go back and update that thread in a minute, so I was able to properly drive this thing today and it pulls really well but as part of shaking it down I was really motoring and in a hard left turn the engine will smoke for 15 seconds or so and then clear. Not on right hand turns and not in a straight line, but it does it pretty consistently on a hard left.

I’m assuming that’s related to the oil being forced to the right side of the engine, and maybe getting sucked into the combustion chamber via the head? Maybe? Kind of? Sort of?

[Dave_Darling]

Doesn't matter if there's a windage tray or not, let alone if the seals are installed properly. Oil still goes up the pushrod tubes in a long corner and fills up the rocker box.

The valve guides are supposed to keep more than trace amounts of oil from being pulled into the combustion chamber and being burned. When they're worn, you can get smoke out the exhaust.

Typically, valve guide wear is worse on the exhausts, because they get exposed to more heat. The symptom generally is that on overrun (high RPM with the throttle closed, coasting, lots of vacuum), the car smokes out the exhaust.

This doesn't sound like valve guides. I would suspect that oil is getting into the intake somehow. The most likely suspect is the rocker box breather, as mentioned above. How are those hoses routed? Might be worth plugging them to see if it helps. Probably a good idea to take a flashlight and look. Check if there is oil on the throttle valve (that's from anything upstream of there) or in the manifold (for anything piped directly into that). A mirror might help, depending on which intake you have, and a borescope might be the best idea. BTW, you can get inexpensive ones from Amazon among other places. Or a mirror can also help you see into the manifold.

--DD