DIY Turbo Discussion greddy on a 1.8? homebrew kit?
Sponsored by:
Sponsored by:

oil burning problem

 
Old 06-22-2008, 10:10 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Jan 2008
Location: monterey park,ca
Posts: 67
Total Cats: 0
Default oil burning problem

i just installed my greddy kit today. When i start up the car, i noticed smoke coming out of the turbo. Is this a oil burning problem caused by imiproper oil drain? I tap my hole under the front part of the ac compressor bracket. It's a lil bit lower, probably 1 cm lower than the one on the diy project instructions.
Any help would be appreciated, thank you.
Attached Thumbnails oil burning problem-031.jpg   oil burning problem-032.jpg  
skyline397 is offline  
Old 06-23-2008, 10:29 AM
  #2  
Newb
iTrader: (1)
 
Join Date: May 2008
Location: Richmond, Va
Posts: 28
Total Cats: 0
Default

I'm having a hard time orienting my view with your pics. Can you point out what that pulley is in the second pic? Also, in the first pic the bracket is your AC bracket that holds the compressor, right?
SchoonerPaul is offline  
Old 06-23-2008, 12:05 PM
  #3  
Elite Member
iTrader: (15)
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,034
Total Cats: 5
Default

I had a dip in my return line similar to yours, however not nearly as drastic. Are you using -4AN lines or -3AN lines? I have a t25 off an sr20 and had the same problem which led me to put a pop rivet into my feed line. Cured that problem.

Link to my thread for more explanation:
https://www.miataturbo.net/forum/showthread.php?t=21246
thesnowboarder is offline  
Old 06-23-2008, 12:23 PM
  #4  
Senior Member
iTrader: (2)
 
Join Date: Aug 2005
Location: Granbury, TX
Posts: 562
Total Cats: 1
Default

To be honest i can't even tell where your return line is going to from that picture, but assuming the camera is behing held horizontal with the ground, your return line needs to be at one big downward slope..

The oil drain uses gravity to let the oil drain out, so any uphill in the line can cause it to not drain properly.
greenday3437 is offline  
Old 06-23-2008, 03:26 PM
  #5  
Elite Member
iTrader: (15)
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,034
Total Cats: 5
Default

Originally Posted by greenday3437 View Post
The oil drain uses gravity to let the oil drain out, so any uphill in the line can cause it to not drain properly.
I agree, but logic tells me that after so much backup it would begin to drain because of the buildup in the return line, causing the oil to drain back into the pan. Now how much backup is the question, if its backing up enough then i can see it causing problems draining. But i would think draining problems would also cause over pressurization in the turbo and possibly blow a seal, causing smoking out of the tailpipe, maybe even oil in charge pipes or exhaust pipes.

To the OP, do you have oil in your charge pipes or exhaust?

Edit: If this was the first start of the car i would expect quite a bit of smoking from oils on your hands from install. How long did you let it run for?
thesnowboarder is offline  
Old 06-23-2008, 05:20 PM
  #6  
Junior Member
iTrader: (1)
 
Join Date: Apr 2008
Location: Bristol
Posts: 439
Total Cats: 0
Default

Smoke coming from the turbo could just be residues from the install burning off but if there is smoke from the tailpipe then I would blame the dip in the drain pipe. That line wants to drain perfectly into the sump or problems will occur. +1 for checking the charge pipes for oil, if it still smokes after sorting out the drain line then go for a restrictor 0.35" for ball bearing and 0.60" for journel bearings I think.

https://www.miataturbo.net/forum/sho...oil+restrictor
Duckie_uk is offline  
Old 06-23-2008, 06:01 PM
  #7  
Boost Czar
iTrader: (62)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 76,619
Total Cats: 2,317
Default

what size oil inlet? drain looks great.
Braineack is offline  
Old 06-23-2008, 09:30 PM
  #8  
Junior Member
Thread Starter
 
Join Date: Jan 2008
Location: monterey park,ca
Posts: 67
Total Cats: 0
Default

my drain was a 3/8 to 10an, after i ran it for a lil bit today, it seems the smoke have stopped. my drain was near the front part of the pan, you can see the steering rack in my picture. The black tube in the second picture is my radiator hose. I think the smoke was coming from the install. Sorry from being a newb.
This is another picture of the drain line.
Attached Thumbnails oil burning problem-001.jpg  
skyline397 is offline  
Old 06-23-2008, 09:44 PM
  #9  
Junior Member
 
Join Date: Oct 2007
Location: AC, NJ
Posts: 345
Total Cats: 0
Default

If that braided line rubs on that rad hose, it can cut right through it.
compy is offline  
Old 06-23-2008, 09:52 PM
  #10  
Junior Member
Thread Starter
 
Join Date: Jan 2008
Location: monterey park,ca
Posts: 67
Total Cats: 0
Default

another picture of the turbo and the drain line.
Attached Thumbnails oil burning problem-002.jpg  
skyline397 is offline  
Old 06-24-2008, 12:37 AM
  #11  
Junior Member
Thread Starter
 
Join Date: Jan 2008
Location: monterey park,ca
Posts: 67
Total Cats: 0
Default

ever since i installed my turbo, my car have a burning smell...... did i did something wrong or that's how it is?
skyline397 is offline  
Old 06-24-2008, 01:03 AM
  #12  
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Chicago. (The non-murder part.)
Posts: 29,327
Total Cats: 2,933
Default

A burning smell and some smoke coming off the outside of the turbo is fairly normal just after installation. The turbo itself comes covered with oil which is going to burn off, the paint is going to burn off the manifold, etc. If it lasts more than a week, then I'd worry. If you wanna be safe, pop the hose off the compressor outlet and check for oil inside. If it's dry, you're good.

Apart from the fact that it is going to eat a hole in your upper lower radiator hose, the drain line doesn't look bad to me. You kinda suck at taking clear pictures, but it appears that the hose has a relatively straight path.
Joe Perez is offline  
Old 06-24-2008, 04:03 AM
  #13  
Junior Member
iTrader: (1)
 
Join Date: Apr 2008
Location: Bristol
Posts: 439
Total Cats: 0
Default

Doh, had my brain at 90* off vertical yep drain is fine
Duckie_uk is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
stoves
Suspension, Brakes, Drivetrain
5
04-21-2016 03:00 PM
Aroundcorner
Miata parts for sale/trade
2
10-01-2015 03:20 PM
mx592
Suspension, Brakes, Drivetrain
1
10-01-2015 12:45 AM
JesseTheNoob
DIY Turbo Discussion
15
09-30-2015 02:44 PM


Thread Tools
Search this Thread
Quick Reply: oil burning problem


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.