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I decided to test out my old radiator by fililng it with…

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I decided to test out...
I decided to test out my old radiator by fililng it with water and looking for the leak. I used the old hose connected to the bottom of the radiator and held the hose vertical, so I didn't have to actually plug the bottom hole.Sure enough, there is nice leak about 6 inches off the bottom, and water is shooting out horizontally in a thin stream! No wonder my radiator empties in under an hour!Just curious, is a plugging chemical solution any good (this info is for future use...) Alternatively, does a single leak indicate the radiator walls are corroded, and more leaks are imminent?I am interested in hearing your experience...
Submitted: 9 months ago.Category: Honda
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Answered in 2 minutes by:
10/15/2017
Mechanic for Honda: Honda-Man, Honda Mechanic replied 9 months ago
Honda-Man
Honda-Man, Honda Mechanic
Category: Honda
Satisfied Customers: 3,337
Experience: I have an Associates Degree in Automotive. 10 Years experience on all makes and models. 20 Years Honda only including factory training. Over 30 years total.
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Mechanic for Honda: Honda-Man, Honda Mechanic replied 9 months ago

Under normal operating pressure it would have really pissed out. Was the leak facing front or rear? Front would probably be from road debris impact. Rear would be corrosion or maybe at some point it wads damaged during a repair? Radiator stop leak is sometimes OK...sometimes. It can restrict the heater core and foul sensor tips. I have heard it can foul thermostats too.

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Mechanic for Honda: Honda-Man, Honda Mechanic replied 9 months ago

If you are curious pull out a section of the old core. Do a cross section and see how bad the core tubes are?

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Customer reply replied 9 months ago
The leak was from the engine side of the radiator (rear).Thanks for filling me in on the other side effects of Radiator Stop Leak.You have got me going :) I'll do a post mortem on the radiator core. Do I just cut out a vertical section, then open it up with snips?
Mechanic for Honda: Honda-Man, Honda Mechanic replied 9 months ago

Snips would work good. Dosen't matter how you get the core sample........core sample sounds kinda important?

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