North American Turbocoupe Organization



88 TC Oil in Intake and Blowing Smoke
DR1Pilot Offline
Member
#1
Hi all,
My 88 is blowing a large volume of smoke that smells of oil. I suspected a head gasket so I went to remove the valve cover and discovered that the intake starting after the throttle body valve is covered in fresh, wet oil and the header appears to have oil leaking from the turbo gasket.
This occurred after the wastegate stopped working and the swapped t3 turbo pushed up to over 20psi (whoops).
PCV valve perhaps? I was actually getting ready to replace the old one.
Project 88 T-Bird 74k original miles
and a Loud Moped
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Pete D Offline
Administrator
#2
Easy to check the pcv. Take it off, hold it straight up & Down and try to blow air through the small end. If it passes ANY air, it's bad. Use only the correct Motorcraft valve; motorcraft EV127-A. Anything else may not block boost from the crankcase.

Is there any sign of oil in the throttle body or the plumbing before?
Pete Dunham


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DR1Pilot Offline
Member
#3
Yep. It's bad. I had a new ev127a I was planning on replacing it anyhow but they sent me an ev111 that is worse than the stock worn one.
There is only a couple specks in the back side of the throttle body but the entire intake throttle body to air filter is dry as a bone.
Project 88 T-Bird 74k original miles
and a Loud Moped
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Jeff K Offline
Administrator
#4
Sounds like a PCV problem to me, as the oil is only after the TB. Easy fix!
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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DR1Pilot Offline
Member
#5
I agree. That's what I was thinking too. New pcv on order and ordered a catch can while I was at it to prevent a similar scenario. I'm just glad it wasn't the head gasket
Project 88 T-Bird 74k original miles
and a Loud Moped
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DR1Pilot Offline
Member
#6
Solved!

Problem was inhibited flow of the oil drain on the turbo.
Project 88 T-Bird 74k original miles
and a Loud Moped
Reply

Jeff K Offline
Administrator
#7
Glad to hear you got it fixed!
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
Reply

Pete D Offline
Administrator
#8
Glad you got it fixed. Just out of curiosity what was causing the inhibited flow?
Pete Dunham


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DR1Pilot Offline
Member
#9
A decent sized kink in the oil return.
Project 88 T-Bird 74k original miles
and a Loud Moped
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