oil in cold side intercooler pipe ? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Prefabbed Turbo Kits A place to discuss prefabricated turbo kits on the market
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools
Old 04-11-2007, 09:22 PM   #1
Junior Member
Thread Starter
 
Join Date: Oct 2006
Posts: 257
Total Cats: 0
Default oil in cold side intercooler pipe ?

while i was changing the oil today i noticed some oil on the outside of my cold side intercooler pipe. i pulled the whole thing out and found a buncha oil in the bottom of the pipe.....what could be causing this ? could my turbo be in need of a rebuild ?

Scott
shinobix is offline   Reply With Quote
Old 04-11-2007, 09:31 PM   #2
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

You either need a rebuild or you have tons of blowby from the crankcase going through your turbo. That is if you have the crankcase breather connected to your intake before the turbo. I don't know anywhere else it could come from.
cjernigan is offline   Reply With Quote
Old 04-11-2007, 09:34 PM   #3
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,860
Total Cats: 1,788
Default

turbo seal or blowby...

does your pcv close when you blow into it?

how's the drain line? I assume you have a GReddy kit, stock return line?

a turbo's compressor seal can have oil pass through it without the need for a rebuild, if other things causing it are to blame.
Braineack is offline   Reply With Quote
Old 04-11-2007, 09:36 PM   #4
Junior Member
Thread Starter
 
Join Date: Oct 2006
Posts: 257
Total Cats: 0
Default

im actually running a catch can right now, from the pcv and from the breather location. so im pretty sure its not blow by. its not a huge accumulation, but it also seems to make it out my hks bov. (pulled the bov and cleaned it out too)

checked the drain line too. (im running stock greddy location) its still all downslope no kinks or anything.

also, not sure if this will help figure out whats wrong. but i think i posted it on thie forum a few months ago when i first installed my catch can. (it was installed on the pcv and the breather location, but the can didn't have a filter on it so it was pressurizing the crankcase and i was burning assloads of oil)


Scott
shinobix is offline   Reply With Quote
Old 04-11-2007, 10:23 PM   #5
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

You should return your PCV side to OEM specs, as in use the little vacuum line and a known working PCV valve. Just use the catch can on the breather side.
cjernigan is offline   Reply With Quote
Old 04-11-2007, 11:02 PM   #6
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,860
Total Cats: 1,788
Default

so both the pcv line and breather line go into the catch can....and then no where else?

i blame poor oil drainage...

return the pcv line to the intake manifold (confirm working valve)

plumb the breather line into the catch can, then into the intake, report back.
Braineack is offline   Reply With Quote
Old 04-12-2007, 03:27 AM   #7
Junior Member
Thread Starter
 
Join Date: Oct 2006
Posts: 257
Total Cats: 0
Default

roger, ill change it around tomorrow morning and give you guys a heads up.

the catch can is vented right now. unlike before....

so i should go from the breather line to the catch can then the catch can to the intake nipple after the afm ?
shinobix is offline   Reply With Quote
Old 04-12-2007, 05:49 AM   #8
I'm Miserable!
 
Join Date: Nov 2004
Location: Chico, CA
Posts: 103
Total Cats: 0
Default

I have the exact same problem. Is there a section on how to drill and tap the oilpan?
92yella is offline   Reply With Quote
Old 04-12-2007, 09:34 AM   #9
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,860
Total Cats: 1,788
Default

Quote:
Originally Posted by shinobix View Post
so i should go from the breather line to the catch can then the catch can to the intake nipple after the afm ?
it's what i'd do, and leave the pcv side like oem. otherwise you have no vacuum in the crackcase, even out of boost.
Braineack is offline   Reply With Quote
Old 04-12-2007, 11:40 AM   #10
Senior Member
iTrader: (1)
 
miataspeed1point6's Avatar
 
Join Date: Feb 2006
Location: Detroit
Posts: 1,235
Total Cats: 0
Default

I installed my starion intercooler kit, and my cold side has an oil build up. The thing about it is that when I had the JRSC crossover I didn't have any buildup at all.

When I first drive my car and its cold if I rev to 3k the oil pressure goes up to the 90psi mark. Could that be causing oil to blow past the oil seals in the turbo? My drain is -10AN line and tapped to the pan and it is all downhill. My PCV valve is stock on the intake manifold and the breather side is tapped into the "U" pipe after the AFM before the turbo. Should I replace my PCV valve just to make sure?
miataspeed1point6 is offline   Reply With Quote
Old 04-12-2007, 11:41 AM   #11
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,860
Total Cats: 1,788
Default

what feed line? stock greddy? then I'd say nahhh.
Braineack is offline   Reply With Quote
Old 04-12-2007, 01:39 PM   #12
Senior Member
iTrader: (1)
 
miataspeed1point6's Avatar
 
Join Date: Feb 2006
Location: Detroit
Posts: 1,235
Total Cats: 0
Default

-4AN braided stainless. There is no oil in the hotside pipe, just the cold side.
miataspeed1point6 is offline   Reply With Quote
Old 04-12-2007, 03:04 PM   #13
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,860
Total Cats: 1,788
Default

if -4an, then I'd think you should try a restrictor.


but pull the intake pipe and verify the oil isn't coming in from the breather line itself first.
Braineack is offline   Reply With Quote
Old 04-12-2007, 04:51 PM   #14
I'm Miserable!
 
Join Date: Nov 2004
Location: Chico, CA
Posts: 103
Total Cats: 0
Default

Quote:
Originally Posted by Braineack View Post
if -4an, then I'd think you should try a restrictor.


but pull the intake pipe and verify the oil isn't coming in from the breather line itself first.
What is the -4an?
92yella is offline   Reply With Quote
Old 04-12-2007, 05:03 PM   #15
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

-4AN is the size of line and fittings.
cjernigan is offline   Reply With Quote
Old 04-14-2007, 04:14 AM   #16
Junior Member
Thread Starter
 
Join Date: Oct 2006
Posts: 257
Total Cats: 0
Default

well, i changed it around the other day and went for a drive... still getting a small amount of oil coming out of the bov near the cold side pipe....
shinobix is offline   Reply With Quote
Old 04-25-2007, 05:40 PM   #17
I'm Miserable!
 
Join Date: Nov 2004
Location: Chico, CA
Posts: 103
Total Cats: 0
Default

I have oil near the BOV, but not trail of oil. it is just there? I cant track down how it got there?
92yella is offline   Reply With Quote
Old 04-25-2007, 05:58 PM   #18
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,860
Total Cats: 1,788
Default

if you're still getting a little it's fairly normal....could be remains stuck in the IC....could still be blow-by, this is where the catch can comes into play.
Braineack is offline   Reply With Quote
Old 04-25-2007, 07:01 PM   #19
Elite Member
iTrader: (14)
 
Join Date: Mar 2006
Location: Edmonton, AB
Posts: 4,921
Total Cats: 0
Default

-3AN is pretty damn close to the stock greddy oil feed. -4AN is quite a bit larger.
jayc72 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 58 Today 10:04 PM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
Moroso Air Oil Separator Catch Can Aroundcorner Miata parts for sale/trade 2 10-01-2015 04:20 PM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 10:46 PM.