LT1-LT4 Modifications 1993-97 Gen II Small Block V8

What Would You Do? Advice Needed!!

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Old Oct 25, 2016 | 03:18 PM
  #21  
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Originally Posted by CaptainArbitrage
I'm certain that I'm losing coolant from a puncture in the top third of the radiator. I already have a new replacement..
can you see the source of the coolant leak?
did you pressure test the radiator?

you do understand that the part of the radiator (side tank) the oil cooler lines go into is a "seperate" tank from coolant that oil goes in and is cooled by the adjoining coolant portion of the radiator. If there is a break between the side tank with oil and a coolant passage than you get coolant in oil and vice versa.

This is why I suggested "confirming" that side tank is not letting coolant leak into it. If so that is the source of coolant in oil...NOT head gasket

replacing the radiator would certainly resolve the issue if the old one was the reason...BEFORE moving on to the $ of replacing head gaskets

Not saying you don't have a bad head gasket..just saying to confirm the radiator is not the source of coolant in oil contamination first
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Old Oct 25, 2016 | 04:36 PM
  #22  
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******, I really appreciate you continuing to respond to my thread. I think that we are having a little bit of a miscommunication. There is no coolant in my oil. I have confirmed that. When my engine overheated, I opened the hood and I watched the coolant literally geyser out of a hole that was about six inches directly below the radiator cap facing into the engine compartment. The hole is on the opposite side of the radiator from the oil coolant lines. Prior to that, I did a pressure test on the radiator and it would not hold pressure--I assumed that I didn't have the correct attachment and simply purchased a replacement cap. It turns out that the test was indicating a hole in the radiator (the one on the driver's side from which I watched the coolant shoot out).

I did not check the side tank because there is no coolant in my oil. The ONLY symptom of a blown head gasket (at this point) is a slight amount of white smoke from the tail pipes. It was my assumption that white smoke is indicative of coolant being burned, not necessarily coolant AND oil being burned.

At this point, I am assuming that I have a slight leak in my head gasket and that there are no other coolant-in-oil issues.
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Old Oct 25, 2016 | 04:57 PM
  #23  
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Originally Posted by CaptainArbitrage
******, I really appreciate you continuing to respond to my thread..
Got it...somewhere must have gotten off track in this thread

so coolant leaking from radiator...new radiator will fix that

white smoke from exhaust...after car overheated....classic sign of compromised head gasket

so along with new head gaskets you will need new intake and exhaust manifold gaskets and some RTV

FWIW I use the FelPro "printo" gaskets and use Permatex Black "ultra" for the front & rear china wall of the motor on intake gasket install
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