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

help big leak on oil cooler.

Thread Tools
 
Search this Thread
 
Old Jul 10, 2010 | 11:31 AM
  #1  
oneround1's Avatar
Thread Starter
Full Member
Tenured Member 10 Years
iTrader: (10)
 
Joined: Feb 2010
Posts: 139
Likes: 0
From: modesto california
help big leak on oil cooler.

there is a huge leak coming from the oil cooler line on the block i dont know what to do. it only shoots out from the block when you start it and running. i tighten it really good it has copper rings on each side. makes a mess every time i have it running thanks
Reply
Old Jul 10, 2010 | 12:23 PM
  #2  
beefhole's Avatar
Boosted. I got BLOWN!!!
Tenured Member: 20 Years
iTrader: (29)
 
Joined: Sep 2003
Posts: 3,742
Likes: 1
From: Queens, NY
Remove the line and inspect everything thoroughly, including the BLOCK. Maybe it has a crack in it.
Reply
Old Jul 10, 2010 | 12:27 PM
  #3  
clokker's Avatar
Cake or Death?
Tenured Member 10 Years
iTrader: (2)
 
Joined: Jan 2007
Posts: 10,249
Likes: 64
From: Mile High
What do you mean "I don't know what to do"?
Replace the damn hose.
Reply
Old Jul 10, 2010 | 12:32 PM
  #4  
oneround1's Avatar
Thread Starter
Full Member
Tenured Member 10 Years
iTrader: (10)
 
Joined: Feb 2010
Posts: 139
Likes: 0
From: modesto california
i replace the hose too still leaks have another oil cooler that doesnt leak swap it still leaks. from the same spot tho. it leaks from where you bolt it on the bolt there no hole in the line.
Reply
Old Jul 10, 2010 | 01:01 PM
  #5  
clokker's Avatar
Cake or Death?
Tenured Member 10 Years
iTrader: (2)
 
Joined: Jan 2007
Posts: 10,249
Likes: 64
From: Mile High
Oh, that's different then.
Any pics?
Reply
Old Jul 10, 2010 | 02:34 PM
  #6  
vrracing's Avatar
Rotary Enthusiast
Tenured Member 15 Years
iTrader: (1)
 
Joined: Mar 2006
Posts: 901
Likes: 1
From: Austin
You probably should order new copper washers from Mazda. I tried finding them at the autoparts stores (even the hard core ones like A-Line) and they didnt have anything in that size. A hydraulic shop might...

When the copper washers are first used they harden and can't be used again. You can try to clean then up with wet/dry sand paper and oil. Then you have to anneal them by heating them up with a blow torch until they glow dark red then dump them in a bucket of water to cool. Then another quick sanding to clean up the burnt contaminants and oxidation and they'll be good to go.

Here's a video that explains it.

Good luck.

btw, the washers on the oil cooler are aluminum and if you try to anneal them they'll just melt. They dont glow red, they liquify. There are ways to do it but it's pretty specialized.
Reply
Old Jul 10, 2010 | 11:00 PM
  #7  
oneround1's Avatar
Thread Starter
Full Member
Tenured Member 10 Years
iTrader: (10)
 
Joined: Feb 2010
Posts: 139
Likes: 0
From: modesto california
cool thank you very much
Reply
Old Jul 11, 2010 | 09:46 AM
  #8  
Aaron Cake's Avatar
Engine, Not Motor
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
When you do get the new copper washers, make sure to follow the torque spec in the FSM/Haynes. If you over tighten, you will crack the washer.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
Jul 1, 2023 04:40 PM
rotor_veux
2nd Generation Specific (1986-1992)
7
Aug 31, 2015 07:49 PM
Cameron38
1st Generation Specific (1979-1985)
3
Aug 19, 2015 06:08 PM
sypath
3rd Generation Specific (1993-2002)
2
Aug 16, 2015 12:06 AM




All times are GMT -5. The time now is 10:50 AM.