New Engine, White Smoke

The Nissan 300ZX (Z32) general community discussion forum
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TooZXY
Posts: 173
Joined: Wed Dec 17, 2008 8:56 am
Car: 1991 300zx TT
Location: Rutland, MA

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I put in a new long block from Import Parts Pro and within an hour of running it started to smoke (whiteish smoke, with liquid dripping from the left tailpipe). I shut the car off immediately and when I when I tried to restart it wouldn't start (turned out the FPCU sh*t the bed too). After a month of tracking down the fuel problem, I'm starting to pull the engine now and I'm suspecting it to either be a turbo or head gasket...

Here's a picture of the oil. I can't tell if there's coolant in the oil or if it's just the lithium grease they use to prime the oil pump. There was no oil in the coolant when I drained that.
Image

Opinions? Things to look for when pulling the engine?

Mods include;
Longblock from IPP
MSP manifold
SZ chip
740cc injectors w/ 300 degree rail
550bb JWT turbos
3 inch downpipes
Test Pipes
Greddy Profec B boost controller (Not running any boost yet)


User avatar
300ZXttZMAN
Posts: 6800
Joined: Mon Nov 22, 2010 4:07 pm
Car: 1990 Nissan 300ZX TT 5spd pearl white

DD: 2008 Nissan Frontier NISMO pkg 4x4 Crew Cab
Location: Sulphur, LA 70665
Contact:

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I'm confused as to how I missed this thread? Since the thread is older is there any update on the situation before we move onto suggestions?

User avatar
TooZXY
Posts: 173
Joined: Wed Dec 17, 2008 8:56 am
Car: 1991 300zx TT
Location: Rutland, MA

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Engine is out. I don't think it was coolant in the oil which leads me to think a turbo is the problem. Could the BB turbo's seals pop if the oil pressure is too high? Any suggestions as to what to look for/test now that the engine is out.

User avatar
300ZXttZMAN
Posts: 6800
Joined: Mon Nov 22, 2010 4:07 pm
Car: 1990 Nissan 300ZX TT 5spd pearl white

DD: 2008 Nissan Frontier NISMO pkg 4x4 Crew Cab
Location: Sulphur, LA 70665
Contact:

Post

Yes^ The turbos should have came with oil restrictors built into the lines. Did you buy the turbos used?

Having-Fun-Yet
Posts: 1
Joined: Fri Mar 24, 2023 1:05 pm
Car: 1991 Nissan 300ZX TT

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@TooZXY Do you still have this car? Haven't seen the Carfax update in a minute. I had it in Salem, NH for a bit. Still running the Borla Catback on the TT?


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