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  #1  
Old 05-30-2007, 12:45 PM
oibrownskin oibrownskin is offline
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Default freeze plugs

in my 1966 dodge Dart 270 with a 225 ci engine, and three freeze hole plugs, what size do I need to replace my freeze plugs?
Do i use nylon, steel or brass?

help asap please.

Caesar
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  #2  
Old 06-01-2007, 07:16 PM
valiant64 valiant64 is offline
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Brass or steel. I use the brass ones, size is 2" if I remember right. Go to your local parts house/machine shop & they'll have what you need.
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Old 12-23-2007, 11:42 PM
crvtec90 crvtec90 is offline
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id go withe brass too
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Old 12-24-2007, 05:51 PM
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Ray Bell Ray Bell is offline
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If there's no aluminum in the cooling system (water pump, thermostat housing), leave the brass in the shop and use steel...

Brass is much higher on the galvanic scale and will kill aluminum components.

A good example of this is the PRV V6 shared by Peugeot (the designers), Renault and Volvo. In the Volvo, and only in the Volvo, there's a brass plug in the block to drain the coolant. The block is aluminum, as are the heads and everything else (very neat light engine).

The Peugeot has very little problem with corrosion, but Volvo blocks are usually badly eaten out. I've known people who've had to change engines because of water leaks out of the block.
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Old 02-17-2009, 12:23 AM
rboursiquot rboursiquot is offline
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i would also used the steel
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Old 03-19-2009, 11:48 AM
passing you passing you is offline
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This guy gave up and sold the car according to an old post i read.
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Old 03-19-2009, 05:28 PM
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Some things are just too hard, I guess...
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Old 03-21-2009, 10:39 AM
Rug_Trucker Rug_Trucker is offline
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So my brass plugs are going to eat up my water pump and thermostat housing?
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Old 03-21-2009, 05:11 PM
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Unless you keep the inhibitor up to scratch...

Or have a sacrificial anode in the cooling system... a piece of zinc or something down the bottom of the galvanic scale to allow the electron attack to focus on something other than the aluminium housings.
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