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How to plug heater core lines from waterpump?

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Old 10-20-2011, 03:48 PM
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Default How to plug heater core lines from waterpump?
Does everyone else just loop them or do you put a plug in the hose or crimp the outlet shut and solder it?
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Old 10-20-2011, 06:47 PM
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Freeze plug. Pop that nozzle out the pump and pop the plug in.
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Old 10-20-2011, 06:49 PM
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Brass freeze plug available at any autoparts store?
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Old 10-20-2011, 06:50 PM
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-Loop the lines
-Remove the fittings and have them welded shut
-Remove the fittings and tap them for pipe plugs
-Remove the fittings and plug them with freeze plugs

Those are your three options.
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Old 10-20-2011, 06:59 PM
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Here's where the oil cooler line used to come out...
Attached Thumbnails How to plug heater core lines from waterpump?-img_1314.jpg  
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Old 10-20-2011, 07:04 PM
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Formulajoe that's a freeze plug?
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Old 10-20-2011, 07:09 PM
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It is, O'reillys didn't have a brass one that size or something.
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Old 10-20-2011, 08:21 PM
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nice so on the lt1 we can plug the water heater lines and the oil cooler line? that would clean my eng bay up alittle
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Old 10-21-2011, 12:21 AM
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I dont have an oil cooler but I used rubber caps and hose clamps.I think you can get them at any auto parts store nothing special really
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Old 10-24-2011, 03:17 PM
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ok so the oil cooler lines and heater lines can be removed without overheating problems? so then to blead the system you just use the one on the thrermo housing? just want to make damn sure before i remove them.
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Old 10-24-2011, 05:40 PM
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what size of freeze plug is it?
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