3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

Oil in intake tubes

Thread Tools
 
Search this Thread
 
Old Nov 13, 2003 | 12:46 PM
  #1  
TwinTriangles's Avatar
Thread Starter
What's an RX-7 ?
Tenured Member 05 Years
 
Joined: Jul 2002
Posts: 920
Likes: 0
From: MN
Oil in intake tubes

Hey guys, I notice I find a little bit of oil in my intake tubes and also my stock BOV seems to shoot out quite a bit of oil also...
I even put a small filter on the end of it but that doesnt really seem to hold it in... Isnt that a sign that my turbos are going out on me, I would think they would have by now, my stock twins have just over 100k miles and I have been running 14psi for the last year... Anyone know whats up with that, I know a lil oil is normal and everything & this doesnt seem to abnormal im just curious...
Reply
Old Nov 13, 2003 | 01:23 PM
  #2  
jd to rescue's Avatar
Senior Member
Tenured Member 05 Years
iTrader: (3)
 
Joined: Apr 2003
Posts: 542
Likes: 1
From: scottsdale, az
If you have +100k on the original turbos, then the bearings and seals on the spindles are probably giving up. This would allow oil to seap into the boost side of the turbos and throw it around in the intake. You may be looking at a turbo rebuild soon.
Reply
Old Nov 13, 2003 | 01:54 PM
  #3  
FormerPorscheGuy's Avatar
Yes it is for sale.
Tenured Member 15 Years
 
Joined: Aug 2002
Posts: 1,905
Likes: 1
From: The Houston Club's Resident Lush.
Some oil is normal, but large amounts could mean that your turbo's will be going very soon.
Reply
Old Nov 13, 2003 | 02:12 PM
  #4  
jagjack's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Aug 2001
Posts: 56
Likes: 0
From: Drums, Pa.
Had the same issue.
First, oil in the intake, then oil
out the charge relief valve, then oil
smoke out the exhaust at idle.
always had good boost though.
I almost replaced the engine, but
instead replaced the twins with a low
mileage set and the smoke and oily
intake are history.
Wait until the smoky idle gets
embarrasing

Jack
Reply
Old Nov 13, 2003 | 02:14 PM
  #5  
r0t0r-rooter's Avatar
call me Smokie Smokerson
Tenured Member 10 Years
 
Joined: Aug 2002
Posts: 1,665
Likes: 0
From: Southern California
Don't forget to clean out the intercooler from time to time
Reply
Old Nov 13, 2003 | 02:32 PM
  #6  
SPOautos's Avatar
Hey, where did my $$$ go?
Tenured Member 10 Years
 
Joined: Feb 2001
Posts: 4,413
Likes: 0
From: Bimingham, AL
Thats your crank case vent. Its a line that goes from the oil filler neck to the primary intake pipe so vent crank case gases back into the intake.

Its not uncommon for some oil to get in the line, especially when making a super hard turn. This is why a lot of road racers run a catch can on it

STEPHEN
Reply
Old Nov 13, 2003 | 04:18 PM
  #7  
rpm_pwr's Avatar
Senior Member
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 348
Likes: 1
From: Brisvegas, Aust
Originally posted by jagjack

Wait until the smoky idle gets
embarrasing
Sound advice. Although oil ingestion is a detonation risk, realistically you won't have a problem. There would be hundreds of guys on here that have run leaking turbos for years (I have, twice) without any drama. Just keep checking the oil level.

It's so bad on my car that it creeps past the intake manifold gasket. But since it only smokes for about 1 minute at startup, they keep going.

-pete
Reply
Old Nov 13, 2003 | 05:29 PM
  #8  
TwinTriangles's Avatar
Thread Starter
What's an RX-7 ?
Tenured Member 05 Years
 
Joined: Jul 2002
Posts: 920
Likes: 0
From: MN
Yea it had me worried before becuz Ive only got about 6k miles on a pettit streetported engine and I noticed occasionally I would get an oil related smoke from my exhaust while idling for periods of time, it would puff out some smoke for a minute then stop if say I was sitting at a long red light, Everyone said my oils seals were going and I hoped not but then when I saw the oil all the way up in the throttle body I figured that must be causing my smokey exhaust... (knocks on wood)
Reply
Old Nov 13, 2003 | 05:32 PM
  #9  
SERIES7's Avatar
Embassador to SOY
Tenured Member 10 Years
 
Joined: Mar 2002
Posts: 4,194
Likes: 0
From: Los Angeles, CA.
yep, just replaced my twins with a freshly rebuilt set, woohoo that feels nice!!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FD7KiD
3rd Generation Specific (1993-2002)
15
Feb 26, 2021 10:12 PM
BNR34RB26DETT
Build Threads
42
Feb 28, 2018 11:27 AM
Snoopy FD
Build Threads
25
Dec 8, 2015 01:45 PM
FD7KiD
Single Turbo RX-7's
1
Aug 17, 2015 11:50 PM
KAL797
Test Area 51
0
Aug 11, 2015 03:47 PM




All times are GMT -5. The time now is 04:57 PM.