Coolant in radiator drip rail - Hot Rod Forum : Hotrodders Bulletin Board
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Old 12-10-2008, 12:04 PM
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Coolant in radiator drip rail

Here's a new one, at least for me!

My car has been setting in the garage for 2 weeks, not driven or started. Went out this morning and there's a small (2-3" diameter) puddle of coolant on the floor. I open the hood and inspect the radiator and find coolant in the drip rail on top of the radiator that has overflowed on the low side (driver) of the radiator and on the floor. The system has an overflow bottle, and it's setting right at normal.

So, car has not been started or driven, outside temps are in the mid 20's to 30's lately (Indiana). I checked the coolant and it's good to -20*. I'm thinking some ice in the radiator, expanding and pushing the coolant out the top?

My first thought is start the car and let it run for 10 - 15 minutes to allow the coolant to circulate, then check it again?

Any suggestions?

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Old 12-10-2008, 12:18 PM
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May be time for a new cap.
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Old 12-10-2008, 12:24 PM
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Caps an easy fix, will just get that done and have it out of the way then. When I took the cap off, the coolant was all the way to the top of the radiator. Funny the overflow didn't catch this?
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Old 12-10-2008, 12:43 PM
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Perhaps the tubing to the overflow is split or cracked where it fits over the nipple coming out of the filler neck.

Pat
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Old 12-10-2008, 12:47 PM
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Quote:
Originally Posted by PatM
Perhaps the tubing to the overflow is split or cracked where it fits over the nipple coming out of the filler neck.

Pat

Good call! Possible the brass tube is leaking where it goes into the neck?
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Old 12-10-2008, 12:52 PM
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add to Jmarks post:
(due to a pet peeve)
ask for the "best quality" new cap available....

the $6? off the shelf stuff is all made in god knows where...
(test 5 of them you get five different results)

all the brands have a "better made/calibrated" cap model...
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Old 12-10-2008, 02:58 PM
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All good info, thanks guys will check all and get a good cap!
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Old 12-10-2008, 06:23 PM
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[QUOTE=Jmark]
Christmas is not a "holiday", it's a celebration. Christmas is not about Honnaka or Kwanzaa or Leprechaun day, It's the recognition of the birth of Jesus, the Son of God sent to offer forgiveness of sin to anyone who asks.

If we have to say "happy holidays" to people to be PC, don't even bother, we don't need to belittle this celebration any more than it already is.

Absolutely correct, thinking the same thing
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Old 12-11-2008, 04:30 PM
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You may also want to check the upper hose to make sure it is tight. I have seen funny things happen with them in the cold, especially if you have those spring clamps.

Chet
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Last edited by T-bucket23; 12-11-2008 at 05:36 PM.
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Old 12-11-2008, 04:57 PM
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Guess what 43 years does to the rubber hose between the radiator and the overflow bottle. Should have inspected that before, it literally crumbled in my hand, hard as a rock!
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