Page 1 of 1

turbo oil leak?

Posted: Fri Sep 07, 2007 7:57 pm
by thehookeup
so i have a oil leak that only occurs when im on full boost for more than 10 secs at a time. it then leaks out and goes all over my down pipe then i get a huge cloud of blue smoke until it burns off for 5 seconds and then it goes away.

initially i thought the seals in m y turbo were going out, but i checked and there is oil all over my cv boot rear of the right head. so that rules out a internal turbo leak. the oil feed line is secure and not leaking, and the oil drain tube is secure from turbo to tube, and tube to fixed line into the head.

high oil pressure doesnt cause the leak either. at 5k with 10 inches of vac it wont do it. it only happends under boost. any ideas where this is coming from.

Posted: Fri Sep 07, 2007 9:36 pm
by thehookeup
nevermind guys, i found the problem. the pcv hose coming out of the block up to the pcv rail was clogged. when i built the motor a year and a half ago. i didnt use a hose that was oil resistant.

so intern the blockage was coming out of the end of the hose all over the exhaust.

the inside of the hose torn off and plugged up. ill have pics later tonight. this is very very interesting.

Posted: Fri Sep 07, 2007 10:27 pm
by dzx
Is that the U shaped hose under the alternator?

Posted: Fri Sep 07, 2007 10:31 pm
by thehookeup
no its the one at the back of the motor next to the bell housing