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EA-81 Freeze Plugs


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Ok, so I just picked up an '84 Brat as a parts car for the '81, At least engine, gearbox, and wheels etc anyway.

Was gonna drive it home cause it ran, but as soon as you put water in it, the water drained out somewhere.

After checking the oil, yes, the water is going into the sump.....

Now, what is my best case scenario?

Do these things have Freeze plugs or whatever?

Thanks!

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Ok, so I just picked up an '84 Brat as a parts car for the '81, At least engine, gearbox, and wheels etc anyway.

Was gonna drive it home cause it ran, but as soon as you put water in it, the water drained out somewhere.

After checking the oil, yes, the water is going into the sump.....

Now, what is my best case scenario?

Do these things have Freeze plugs or whatever?

Thanks!

 

Yeah they do - take the valve cover off and you'll see them on the head.

 

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As far as I know, Freeze or frost plugs, are incase your coolant freezes, and they giveway before any other more expensive part of the engine.

Well, thats at least what I had gathered anyway.

Anyone else feel free to enlighten me

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They were not originally inteneded for that purpose. They are there as an atifact of the aluminium casting process. But someone noticed a long long time ago that they will pop out if the coolant freezes, so the name stuck. There should be two in each head... they will pop out and end up in the valve covers or down in the oil pan. Lack of proper amounts of anti-freeze in the coolant mixture.

 

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