T25 leaking oil. - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 05-20-2009, 02:59 PM   #1
Junior Member
Thread Starter
 
Join Date: Oct 2007
Location: Staten Island, NY
Posts: 159
Total Cats: 0
Default T25 leaking oil.

My used SR20 T25 seems to be leaking oil from where the center cartridge and exhaust housing meet, right from the seam. It's not a bad leak, but it seems to build up over time, drip on to the manifold below, and make lots of smoke. No smoke from the exhaust at all, except for one time I saw a nice sized puff at idle, which I'm assuming is related. No smoke under boost and the turbo is tight otherwise. My guess is a problem with the oil deflector (or the passage where the oil drains back into the cartridge). Think I could get away with running a restrictor and not have to take the turbo apart?
anarchyx34 is offline   Reply With Quote
Old 05-20-2009, 03:40 PM   #2
Elite Member
iTrader: (8)
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,732
Total Cats: 3
Default

What size oil feed are you using? If -4an you may benefit from a restrictor.

Otherwise, its prolly your turbine oil seal. Not super difficult to rebuild one of these turbos.
wayne_curr is offline   Reply With Quote
Old 05-20-2009, 03:41 PM   #3
Junior Member
Thread Starter
 
Join Date: Oct 2007
Location: Staten Island, NY
Posts: 159
Total Cats: 0
Default

Yeah it's -4AN. I know how to rebuild one. I just would rather not have to mess with it, at least not without upgrading at the same time .
anarchyx34 is offline   Reply With Quote
Old 05-20-2009, 03:43 PM   #4
Elite Member
iTrader: (8)
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,732
Total Cats: 3
Default

Try a pop rivet then, cant hurt anything.
wayne_curr is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Garrett Turbo, 1.8 Oil Pan, & Misc. Stuff nbdooey Miata parts for sale/trade 9 08-30-2017 10:50 PM
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM
3rd Time's a Charm...hopefully. zephyrusaurai Meet and Greet 2 09-28-2015 11:59 PM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 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 07:10 PM.