Anti Freeze discharge - Team Camaro Tech
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post #1 of 8 (permalink) Old Apr 23rd, 07, 06:53 PM Thread Starter
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Mark
 
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Anti Freeze discharge

Guys:

This winter I put a new carb on the car and of course ran the motor for awhile to make sure all was okay. Made sure to let it heat up all they way to avoid condensation in the motor. A couple opf weeks later I notice a small amount of anti freeze on the garage floor. Not much maybe 3-4 oz.

We had a bunch of bad weather etc and then a few weeks ago the weather broke and salt was off the roads so I took the car out for the first short spin of the year.

Looked again this week and there is more anti freeze on the floor, another 3-4 oz. or so. I only got the car late last year and there was absolutely no issue with this. I haven't been able to get the car up on the jack stands or anything yet because the snow and cold weather made the road crews put salt on the roads.

Any ideas where the small amount of anti freeze is coming from and why? Is the thermostat possibly stuck?

Thanks for the help.

Mark

68 L78 RS/SS, 70 Chevelle SS clone project

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post #2 of 8 (permalink) Old Apr 23rd, 07, 08:47 PM
DjD
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Re: Anti Freeze discharge

Mark - these old cars have cooling systems that were designed without coolant recovery. My guess without seeing the car is sometime before putting it away for the winter the coolant got topped off which is a no-no. It has to be a couple inches down in the core when cold or it will pee out a little each time you warm it up good and shut it off. The fluid expands as it heats and pressure builds in the system. Shut it off and the engine heat soaks a bit pushing the pressure beyond the caps rating. It will keep doing this until the right level is reached.

Go on that as it's the most common cause. Keep an eye on it for a while just in case it's something more serious...

...Dennis

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post #3 of 8 (permalink) Old Apr 24th, 07, 04:33 AM Thread Starter
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Re: Anti Freeze discharge

Dennis:

Thanks for the response. Yes I have read about what you are saying in other posts. The disconcerting thing is that I did not top off the coolant before I put the car away. A I think back to last year I did have the car looked at right at the end of the season by a local Chevy dealership for an electrical problem I could not solve. Maybe they topped it off, I don't know. I only drove the car home form the shop, then down to the gas station to fillit up and add gas stabilizer before putting it away for the winter.

I will keep an eye on it.

Thanks again

Mark

68 L78 RS/SS, 70 Chevelle SS clone project

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post #4 of 8 (permalink) Old Apr 24th, 07, 02:03 PM
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Re: Anti Freeze discharge

If there are no marks where it came from..
Drive it....temp duct tape an old bake been can to the over flow pipe..if thats where it comes from you will know.

My Spelling is not incorrect...it is creative

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post #5 of 8 (permalink) Old Apr 24th, 07, 03:00 PM
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Re: Anti Freeze discharge

hmm how odd after a winter of storage mine too had a coolant leak and I found it was the aluminum water pump bolts that loosened up?
thread locked the bolts and tightened down.
no leaks for 2 weeks now.


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post #6 of 8 (permalink) Old Apr 24th, 07, 06:59 PM Thread Starter
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Re: Anti Freeze discharge

Guys: thanks for the help.

Dawg I will check my water pump bolts. BTW great reservoir where you live. many moons ago I lived in Simsbury and used to ride my motorcycle up around there on Sunday mornings. Always enjoyed that.

Mark

68 L78 RS/SS, 70 Chevelle SS clone project

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post #7 of 8 (permalink) Old Apr 24th, 07, 08:08 PM
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Re: Anti Freeze discharge

My first question would be where the puddle is located. If it is overflow, the puddle should be toward the front passenger side since the overflow tube runs down the right side of the radiator. If not, then you have a leak. You should be able to locate the source from where the puddle is at in your garage or atleast get you close.

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post #8 of 8 (permalink) Old Apr 26th, 07, 05:04 PM Thread Starter
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Re: Anti Freeze discharge

I had the car parked on a sheet of plastic and the floor slopes to the center to drain so the anti-freeze dispersed so I could not tell where it came from. Nothing visible to the eye. I checked the torque on the intake bolts no issue there. Haven't checked the water pump yet.

Mark

68 L78 RS/SS, 70 Chevelle SS clone project

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Last edited by mstehle; Apr 28th, 07 at 02:35 AM.
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