C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Oh.... poopie......

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Old Jun 15, 2002 | 08:37 PM
  #21  
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Default Re: Oh.... poopie...... (Glock'94)

As per recommendation by a friend at the GM dealer .. i'm going to drain all the coolant out and replace it with just water
This can cause corosion very quickly, think this is a bad idea. I would just flush an put in about 40% green and 60% distilled H2O and see what happens.
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Old Jun 15, 2002 | 08:49 PM
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Default Re: Oh.... poopie...... (PeteL)

As per recommendation by a friend at the GM dealer .. i'm going to drain all the coolant out and replace it with just water

This can cause corosion very quickly, think this is a bad idea. I would just flush an put in about 40% green and 60% distilled H2O and see what happens.
Even for one or two days? :confused:


[Modified by Glock'94, 6:49 PM 6/15/2002]
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Old Jun 15, 2002 | 09:24 PM
  #23  
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Default Re: Oh.... poopie...... (Glock'94)

As per recommendation by a friend at the GM dealer .. i'm going to drain all the coolant out and replace it with just water

This can cause corosion very quickly, think this is a bad idea. I would just flush an put in about 40% green and 60% distilled H2O and see what happens.

Even for one or two days? :confused:

YES!!

You coolant looks like it needs to be changed anyways.. I would change it with fresh coolant and distilled water.. 50/50 or so (60/40) is ok too and run it for a couple of days and then check it again... Forget that water wetter.. I don't use any and my car stays under 205 in the DESERT when its 116 degrees outside with the a/C on and everything!!!!


[Modified by Glock'94, 6:49 PM 6/15/2002]
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Old Jun 15, 2002 | 09:25 PM
  #24  
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Default Re: Oh.... poopie...... (Glock'94)

I really doubt you have a cracked block. The water pressure in the cooling system is above 10 psi when the engine is warmed up. The pressure inside the block is at or below zero most of the time so the water will go into the block because of the pressure difference.

So whats going on with your oil pressure ?


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Old Jun 15, 2002 | 09:28 PM
  #25  
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Default Re: Oh.... poopie...... (Glock'94)

Glock,


Hey I used water wetter last year before doing my engine work. I too noticed the same thing accumulating in my overflow. I paid attention to it and it never seemed to get worse so I forgot about it. After the engine rebuild I never added the wetter, just never got around to it yet. Even checked the other day to see if there were still traces in the overflow and nothing. My guess is either the wetter allows some of the residue build-up to break loose, or as stated above perhaps the system can only consume so much of the wetter then it becomes saturated.

One other note. Your engine was just rebuilt. It is VERY possible that during the assembly some oil got into one of the coolant passages and is now showing up.

Doesn't look like a huge problem. Just keep and eye on it. And I hope you do not have major problems. If in fact you are having oil get in your coolant, it will probably continue to get worse. Just keep an eye on it!

Good luck :cheers:
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Old Jun 15, 2002 | 10:00 PM
  #26  
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Default Re: Oh.... poopie...... (ski_dwn_it)

Ok, thanks guys. I will put a 40/60 mix of coolant in tomorrow. If I drive it anywhere today it will only be a block or two, so I'm not going to worry about draining and filling it right now.

I'll check for more oil tomorrow.

I'll probably just drain the radiator tomorrow and fill up the system with straight coolant instead of draining the entire block again and then mixing the stuff. 1.5 gallons of coolant should be enough considering I think the system is about 3.5-4 gallons total.
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Old Jun 15, 2002 | 10:02 PM
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Default Re: Oh.... poopie...... (AquaMetallic94LT1)

I just flushed my coolant yesterday and added Redline water wetter. I have the same looking coolant. I also added 2 bottles. ski_dwn_it may be on to something about having the coolant saturated with too much water wetter
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Old Jun 15, 2002 | 10:03 PM
  #28  
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Default Re: Oh.... poopie...... (AquaMetallic94LT1)

I really doubt you have a cracked block. The water pressure in the cooling system is above 10 psi when the engine is warmed up. The pressure inside the block is at or below zero most of the time so the water will go into the block because of the pressure difference.

So whats going on with your oil pressure ?
Good point .. the block would be full of water because of the pressure.

The oil pressure is doing great with Mobil 1, 15w50. Anytime i touch the gas it's about 50psi... high i've seen is around 60-65psi. Hot idle with the A/C on it's at 20psi (which is much better than it was before). I'm still considering changing out the oil pump though. I would just really like to have a deep pan if I get a high volume pump for my own mental safety even though manufacturers say you won't pump the pan dry.



[Modified by Glock'94, 8:03 PM 6/15/2002]
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Old Jun 15, 2002 | 10:04 PM
  #29  
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Default Re: Oh.... poopie...... (Rob90)

I just flushed my coolant yesterday and added Redline water wetter. I have the same looking coolant. I also added 2 bottles. ski_dwn_it may be on to something about having the coolant saturated with too much water wetter
Hmm.. i think we may have discovered something here possibly then.
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Old Jun 15, 2002 | 10:09 PM
  #30  
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Default Re: Oh.... poopie...... (Glock'94)

I've had this happen in other cars - HEAD GASKET - were the heads retorqed after 500-1000 miles after the rebuild?
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Old Jun 15, 2002 | 11:13 PM
  #31  
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Default Re: Oh.... poopie...... (GRX)

I've had this happen in other cars - HEAD GASKET - were the heads retorqed after 500-1000 miles after the rebuild?
No. I guess I need to do that then?
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Old Jun 16, 2002 | 02:21 AM
  #32  
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Default Re: Oh.... poopie...... (Glock'94)

Certainly would'nt hurt. :yesnod:
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Old Jun 16, 2002 | 02:23 AM
  #33  
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Default Re: Oh.... poopie...... (Hardcorvette)

45ft/lb's right?
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Old Jun 16, 2002 | 03:07 AM
  #34  
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Default Re: Oh.... poopie...... (Glock'94)

Shooting from the hip, I would say that you have a minor problem of contamination. IMO, it seems like you have a bad seal on one of the head gaskets. During the cool down period after a shutdown, as the water contracts a small amount and causes a small amount of vacuum which sucks some oil in to the cooling system. If you try to do a pressure test on the coolant system, you will find no leakage. I would retorque the heads and run it for a while to see if there is any increase in contamination. You might also want to add a small can of the block sealer additive in the cooling system. This should fix any minor leakage in the system. Run the engine for a few hundred miles and continue to monitor the system. If you are lucky, your problems will be solved by the block sealer and retorquing.

:cheers: :rolleyes:
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Old Jun 17, 2002 | 12:51 AM
  #35  
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Default Re: Oh.... poopie...... (Glock'94)

Try retorquing the heads....that's certainly the 'cheaper' solution. The best solution is to re-new the gaskets. There are some gaskets that some claim, don't need retorqing...I would retorque anyway. I'm not sure what the torque rating is on those bolts....look it up in the manual; also I think its best done when the engine is cold. Good luck!
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