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Internal water leak

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Old Oct 7, 2005 | 02:37 AM
  #1  
gta324's Avatar
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
Internal water leak

Hi...

I got water in my oil so I changed the head gaskets and top decked the heads and put it together. But I still get water in my oil.

There is no white smoke and the gaskets seemed fine, the car has never overheated.

So I need some help with finding the leak.

Can someone tell me where I can buy a tool so I can put the cooling system under pressure. And also where can I buy a "spark plug" adapter so I can put compressed air in the heads.

Theese things are hard to find in sweden so a I need to buy them in Us, can someone help me out?

/N.
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Old Oct 7, 2005 | 04:01 AM
  #2  
Z69's Avatar
Z69
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From: Texas
Build your own cyl air tool
Knock the center out of an old spark plug and braze on a pipe nipple.
Pick the size that will fit what ever thread count your local male air quick connect fittings are. Some people drill and tape the plug for the pipe thread. My plug was a little hard so drilling was difficult.
Torch was close to the press so it was faster.
It's a little cumbersome to use, but it was free.
Keep things clear of the fan belts etc when airing up. The motor will spin up to 180*.

I have a Snap On pressure tester. Little pricey at $75.
Not sure who else makes them.
To spot running water, you can simply put 15psi regulated air to the rad overflow nipple. To see if there is a leak, you need a method to trap the air & monitor the pressure.
This is a once or twice method. The correct tool is so much nicer to use.
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Old Oct 7, 2005 | 12:43 PM
  #3  
Stekman's Avatar
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Joined: Jul 2003
Posts: 4,803
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From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Can you get a compression tester over there? That will tell you quickly if you have a leak at the head gaskets or any of the affiliated surfaces.

If you do get around to a compression test, and everything scopes out alright, a faulty intake gasket would be the next guess, especially if you aren't burning anything abnormal.
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Old Oct 7, 2005 | 12:54 PM
  #4  
84z28350's Avatar
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Joined: Aug 2005
Posts: 3,004
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From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
my guesss would be the intake gaskets leaking af into the lifter valley or in worst case scenario a cracked block.
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Old Oct 7, 2005 | 08:44 PM
  #5  
NoItsNotForSale's Avatar
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Joined: Feb 2005
Posts: 661
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From: Bonham TX
Car: 87 & 89 Iroc's
Engine: 5.0 - 5.7
Transmission: 700R's
Axle/Gears: 2.77 - 3.70
I had this problem once, the intake manifold had rotted out and was leaking water.
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Old Oct 7, 2005 | 09:23 PM
  #6  
Red Devil's Avatar
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From: E.B.F. TN
Car: Tree Huggers
Engine: Do Not
Transmission: Appreciate Me.
Or you have a cracked block. Good luck.
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Old Oct 8, 2005 | 09:32 PM
  #7  
sellmanb's Avatar
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Joined: Jul 2004
Posts: 1,840
Likes: 1
From: Tigard, Oregon
Car: '86 Berlinetta
Engine: 350
Transmission: 700R4
or cracked heads
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Old Oct 10, 2005 | 11:47 PM
  #8  
gta324's Avatar
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Posts: 2,441
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
Will check on ebay for a tester............

Hopefully it will will help me find the leak...............

Heads have 2500miles on them
Intake has 1000miles on it
Block is a "Motown" and has 2500miles

/N.
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Old Oct 11, 2005 | 02:19 AM
  #9  
gta324's Avatar
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Supreme Member
25 Year Member
 
Joined: Aug 1999
Posts: 2,441
Likes: 1
From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
ps anybody knows the size of the cap? Dont want to drive to the winter storage just to check.....

/N.
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