in my Galant (4G63T), when I let off the gas after pushing 10-15 psi, the car dumps a HUGE amount of smoke behind me...almost like a Bond car.

when cruising along or accelerating under vacuum, I see nothing out the back window though that could just mean that I'm pushing out less smoke. this is 100% oil smoke, not coolant/water.

is this a sign of leaky turbo seals or should I start looking for something else like bad piston rings?

as it stands, the car already has good compression across all 4 cylinders with only one slightly out of spec.

I just noticed this issue after fixing a huge vacuum leak under the hood off the PCV valve and installed a new PCV valve in the process.

your thoughts and ideas are welcome.

-Ron

what about oil drain issues from the turbo...???

what about oil drain issues from the turbo...???
good question, everything looked alright when I looked at it yesterday. the mounting posisition of the turbo is in the OE location using all the OE plumbing. in this case, the return line is a hard steel tube that gravity drains into the oil pan.

Given the drainage pipe size, I highly doubt that it's blocked and the oil running through it is synthetic so sludge shoudn't be an issue.

do you have an oil restrictor on the oil inlet feed??

Sounds like your valve seals.

do you have an oil restrictor on the oil inlet feed??
I don't believe so.

---

Matt, I'll have to look into that.

In addition to the stem seals and turbo seals, consider the valve guides. The head has to come off for those, though.

Philip Bradley

In addition to the stem seals and turbo seals, consider the valve guides. The head has to come off for those, though.

Philip Bradley
sounds like fun! :stickoutt

the head probably needs a refresh as it is...the car has 184,000 miles on it.