Internal water leak
Thread Starter
Supreme Member

Joined: Aug 1999
Posts: 2,441
Likes: 1
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.
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.
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.
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.
TGO Supporter
Joined: Jul 2003
Posts: 4,803
Likes: 2
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.
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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Thread Starter
Supreme Member

Joined: Aug 1999
Posts: 2,441
Likes: 1
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.
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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