2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

Turbocharger leaking oil ?

Thread Tools
 
Search this Thread
 
Old 08-07-12, 10:00 PM
  #1  
1990 T2

Thread Starter
iTrader: (2)
 
arad99's Avatar
 
Join Date: Aug 2006
Location: Weirton WV
Posts: 437
Likes: 0
Received 0 Likes on 0 Posts
Turbocharger leaking oil ?

We thought the turbocharger was smoking so we rebuilt the turbocharger but the smoke is still there. Now the turbo is leaking oil. It leaks about 1 drop every 5 seconds. It looks like the oil is coming from 2 different places. One place is between the manifold and the turbo (the gasket is in place) also it looks like oil is coming from some place on top of the turbo but I don't think its coming from the oil inlet hose.
Old 08-07-12, 10:17 PM
  #2  
This is my social media.

iTrader: (22)
 
dwb87's Avatar
 
Join Date: Jan 2006
Location: WA
Posts: 2,744
Likes: 0
Received 0 Likes on 0 Posts
Depending on how the oil feed and oil return are installed, they can be a pain to seal "just right". It would be worth removing both and reinstalling them with clean gaskets. The only place that oil can leak from the top is the feed line. Do you use the stock hardline?

I had an oil leak from the turbo in the past and found the leak from a reused gasket on the oil return line. I made about twelve gaskets for the price of two or three with a specific gasket making material... And I only used 1/3 of the material.

You must pin-point your leak. Otherwise you'll just be replacing this and that and just "throwing" money at it.
Old 08-08-12, 12:10 AM
  #3  
Turbo power, activate!

iTrader: (7)
 
Black Knight RX7 FC3S's Avatar
 
Join Date: Nov 2002
Location: Philadelphia
Posts: 1,708
Received 5 Likes on 5 Posts
If you are using the stock hardline, its hard to try and get it to be completely flat against the flange on the turbo. The flange on the hardline itself might be warp. I always use a gasket and put a very thin amount of rtv on both gasket sides and then tighten the two 12 mm bolts just so the flanges mates, let the rtv dry a little bit after waiting 3-4 mins and then handtighten it down.
Never leaked for me, but I got tired of the hardline after swaping so many hybrids in and out, so I bought a stainless steel line for the oil feed instead.

If you rebuilt the turbo and you see oil leaking, the only place oil will leak is from the oil inlet, or the oil drain.
Old 08-08-12, 06:17 AM
  #4  
1990 T2

Thread Starter
iTrader: (2)
 
arad99's Avatar
 
Join Date: Aug 2006
Location: Weirton WV
Posts: 437
Likes: 0
Received 0 Likes on 0 Posts
Thanks for the help guys.
I do still have the hard lines. I'll remove both of the lines and reseal them.
Old 08-08-12, 08:06 AM
  #5  
1990 T2

Thread Starter
iTrader: (2)
 
arad99's Avatar
 
Join Date: Aug 2006
Location: Weirton WV
Posts: 437
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Black Knight RX7 FC3S
so I bought a stainless steel line for the oil feed instead.

.
Do you remember where you bought the stainless line?
Old 08-08-12, 11:29 AM
  #6  
Turbo power, activate!

iTrader: (7)
 
Black Knight RX7 FC3S's Avatar
 
Join Date: Nov 2002
Location: Philadelphia
Posts: 1,708
Received 5 Likes on 5 Posts
I pieced mines together.

you can buy the parts from atp-turbo, or himni-racing (pretty expensive but includes all you need)

You can piece it together with parts from Summitracing, or Jegs for cheap.
Old 08-08-12, 02:57 PM
  #7  
This is my social media.

iTrader: (22)
 
dwb87's Avatar
 
Join Date: Jan 2006
Location: WA
Posts: 2,744
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by arad99
I do still have the hard lines. I'll remove both of the lines and reseal them.
It really will give you peace of mind as long as you do it right.


Originally Posted by arad99
Do you remember where you bought the stainless line?
I currently use this one without any issues. -> Turbo Oil Feed Line Kit MAZDA RX-7 W/ HITACHI HT18S

(Not EVERYTHING on eBay is crap.)
Old 08-12-12, 02:57 AM
  #8  
'downgrading to upgrade..
iTrader: (11)
 
sclas90's Avatar
 
Join Date: Oct 2010
Location: Southern Oregon
Posts: 85
Likes: 0
Received 0 Likes on 0 Posts
How long have you used it for?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
sypath
3rd Generation Specific (1993-2002)
2
08-16-15 12:06 AM



Quick Reply: Turbocharger leaking oil ?



All times are GMT -5. The time now is 02:26 AM.