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coolant leak
#1
Post: #1coolant leak
Hello,

Have a 73 non AC car. Just replaced the radiator and am 100% certain that the radiator and associated hoses are not leaking. I noticed a small amount of coolant dripping out of the frame rail , passenger side about even with the back of the door. Small amount on the floor about the size of an egg. First thought was heater core but the floor carpet and padding are all dry. No odor in car. Any chance that while swapping radiator some coolant somehow ran down the frame rail and is draining out ? Had to change radiators twice due to defective radiator first time. Any thoughts appreicated.

steve
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#2
naa10104;282323 Wrote:Post: #1coolant leak
Hello,

Have a 73 non AC car. Just replaced the radiator and am 100% certain that the radiator and associated hoses are not leaking. I noticed a small amount of coolant dripping out of the frame rail , passenger side about even with the back of the door. Small amount on the floor about the size of an egg. First thought was heater core but the floor carpet and padding are all dry. No odor in car. Any chance that while swapping radiator some coolant somehow ran down the frame rail and is draining out ? Had to change radiators twice due to defective radiator first time. Any thoughts appreicated.

steve
If the coolant level is not changing, what you've suggested seems reasonable. Chuck
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#3
c9zx;282325 Wrote:
naa10104;282323 Wrote:Post: #1coolant leak
Hello,

Have a 73 non AC car. Just replaced the radiator and am 100% certain that the radiator and associated hoses are not leaking. I noticed a small amount of coolant dripping out of the frame rail , passenger side about even with the back of the door. Small amount on the floor about the size of an egg. First thought was heater core but the floor carpet and padding are all dry. No odor in car. Any chance that while swapping radiator some coolant somehow ran down the frame rail and is draining out ? Had to change radiators twice due to defective radiator first time. Any thoughts appreicated.

steve
If the coolant level is not changing, what you've suggested seems reasonable. Chuck

Thanks I will keep an eye on it ... wasn't sure if the coolant could get that far back on the frame rail.
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#4
Freeze plug maybe????????

The person who says it cannot be done should not interrupt the person doing it. 
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#5
piper62j;282331 Wrote:Freeze plug maybe????????

Embarrased to say I only put eyes on the passenger side, but probably not as carefully as I should have. Will double check if this continues ... thanks.

steve
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#6
What engine is in the car. If it's a 302, it could be conceivable that a coolant leak from the rear of the intake or head could make its way via bellhousing, etc to where you describe.
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#7
all the above statements are true, could be from several places. since your in VA , and not freezing yet, how about hosing the engine and frame area's off and checking it again.
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#8
delawarebill;282362 Wrote:all the above statements are true, could be from several places. since your in VA , and not freezing yet, how about hosing the engine and frame area's off and checking it again.

thanks for the input. It is a 351 C

steve
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#9
naa10104;282366 Wrote:
delawarebill;282362 Wrote:all the above statements are true, could be from several places. since your in VA , and not freezing yet, how about hosing the engine and frame area's off and checking it again.

thanks for the input. It is a 351 C

steve

Hello,

Checked it again yesterday and this time there was app. a 8" diameter puddle under the car in basically the same location under the car but further forward ... about 18" back from the passenger side tire. The coolant level was lower, but more than the puddle on the floor would indicate. Again I checked everywhere and can't locate any leaks. I actually removed the rocker panel and kick panel and pulled the carpet and pad up as much as that would allow. Floor is dry as well as the carpet and pad. I looked at the bottom of the heater/fan box, no indication of any coolant. I wonder if the level in the radiator is lower because some air has "burped" out of the cooling system. Maybe the coolant on the floor is residual from what was spilled/drained earlier. I will check it on my next visit to the garage and see if anymore coolant is on the floor. Will also check engine freeze plugs and head gaskets more carefully. Is it possible for the heater core to be leaking, but not present insdie the car on the apssenger floor ? Any advice is appreciated ... thanks.
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#10
The heater box has a drain tube that goes through the floor near the hump so a leaking core may not show
inside the car.

Paul
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